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Volumn 98, Issue 1, 2009, Pages 115-133

Western Indian Ocean marine and terrestrial records of climate variability: A review and new concepts on land-ocean interactions since AD 1660

Author keywords

Africa; Coral oxygen isotopes; India; Indian Ocean; Terrestrial proxy records

Indexed keywords

AIR TEMPERATURE; CORAL RECORD; LAND-SEA INTERACTION; OXYGEN ISOTOPE; PALEOCLIMATE; PROXY CLIMATE RECORD; RAINFALL;

EID: 59249095476     PISSN: 14373254     EISSN: 14373262     Source Type: Journal    
DOI: 10.1007/s00531-008-0365-5     Document Type: Review
Times cited : (34)

References (86)
  • 1
    • 0141527383 scopus 로고    scopus 로고
    • Lake-level history of Lake Tanganyika, East Africa, for the past 2500 years based on ostracode-inferred water-depth reconstruction
    • doi: 10.1016/S0031-0182(03)00484-X
    • Alin SR, Cohen AS (2003) Lake-level history of Lake Tanganyika, East Africa, for the past 2500 years based on ostracode-inferred water-depth reconstruction. Palaeogeogr Palaeoclimatol Palaeoecol 199:31-49. doi: 10.1016/S0031-0182(03)00484-X
    • (2003) Palaeogeogr Palaeoclimatol Palaeoecol , vol.199 , pp. 31-49
    • Alin, S.R.1    Cohen, A.S.2
  • 2
    • 0029476675 scopus 로고
    • Multidecadal variability in the climate system over the Indian Ocean region during the austral summer
    • doi:10.1175/1520-0442(1995)008<1853:MVITCS>2.0.CO;2
    • Allan RJ, Lindesay JA, Reason CJC (1995) Multidecadal variability in the climate system over the Indian Ocean region during the austral summer. J Clim 8:1853-1873. doi:10.1175/ 1520-0442(1995)008<1853:MVITCS>2.0.CO;2
    • (1995) J Clim , vol.8 , pp. 1853-1873
    • Allan, R.J.1    Lindesay, J.A.2    Reason, C.J.C.3
  • 3
    • 0037178775 scopus 로고    scopus 로고
    • Increase in the Asian Southwest Monsoon during the past four centuries
    • doi: 10.1126/science.1072881
    • Anderson DM, Overpeck JT, Gupta AK (2002) Increase in the Asian Southwest Monsoon during the past four centuries. Science 297:596-599. doi: 10.1126/science.1072881
    • (2002) Science , vol.297 , pp. 596-599
    • Anderson, D.M.1    Overpeck, J.T.2    Gupta, A.K.3
  • 4
    • 29144447338 scopus 로고    scopus 로고
    • Paramount impact of the Indian Ocean Dipole on the East African short rains: A CGCM study
    • doi: 10.1175/JCLI3541.1
    • Behera SK, Luo J-J, Masson S (2005) Paramount impact of the Indian Ocean Dipole on the East African short rains: A CGCM study. J Clim 18:4514-4530. doi: 10.1175/JCLI3541.1
    • (2005) J Clim , vol.18 , pp. 4514-4530
    • Behera, S.K.1    Luo, J.-J.2    Masson, S.3
  • 5
    • 9744232198 scopus 로고    scopus 로고
    • Zonal circulation over the Indian and Pacific Oceans and the levels of Lakes Victoria and Tanganyika
    • doi: 10.1002/joc.1089
    • Bergonzini L, Richard Y, Petit L, Camberlin P (2004) Zonal circulation over the Indian and Pacific Oceans and the levels of Lakes Victoria and Tanganyika. Int J Climatol 24:1613-1624. doi: 10.1002/joc.1089
    • (2004) Int J Climatol , vol.24 , pp. 1613-1624
    • Bergonzini, L.1    Richard, Y.2    Petit, L.3    Camberlin, P.4
  • 6
    • 0033560472 scopus 로고    scopus 로고
    • Indian Ocean climate event brings flood to East Africa's lakes and the Sudd Marsh
    • doi: 10.1029/1999GL900165
    • Birkett C, Murtugudde R, Allan T (1999) Indian Ocean climate event brings flood to East Africa's lakes and the Sudd Marsh. Geophys Res Lett 26:1031-1034. doi: 10.1029/1999GL900165
    • (1999) Geophys Res Lett , vol.26 , pp. 1031-1034
    • Birkett, C.1    Murtugudde, R.2    Allan, T.3
  • 7
    • 0042304146 scopus 로고    scopus 로고
    • An observational study of the relationship between excessively strong short rains in coastal East Africa and Indian Ocean SST
    • doi:10.1175/1520-0493(2003)131<0074:AOSOTR>2.0.CO;2
    • Black E, Slingo J, Sperber KR (2003) An observational study of the relationship between excessively strong short rains in coastal East Africa and Indian Ocean SST. Mon Weather Rev 131:74-94. doi:10.1175/ 1520-0493(2003)131<0074:AOSOTR>2.0.CO;2
    • (2003) Mon Weather Rev , vol.131 , pp. 74-94
    • Black, E.1    Slingo, J.2    Sperber, K.R.3
  • 8
    • 33750606092 scopus 로고    scopus 로고
    • Uncertainty estimates in regional and global observed temperature changes: A new dataset from 1850
    • doi: 10.1029/2005JD006548
    • Brohan P, Kennedy JJ, Harris I, Tett SFB, Jones PD (2006) Uncertainty estimates in regional and global observed temperature changes: A new dataset from 1850. J Geophys Res 111. doi: 10.1029/2005JD006548
    • (2006) J Geophys Res , vol.111
    • Brohan, P.1    Kennedy, J.J.2    Harris, I.3    Tett, S.F.B.4    Jones, P.D.5
  • 9
    • 36448930967 scopus 로고    scopus 로고
    • A 780 yr annually-resolved record of Indian Ocean monsoon precipitation from a speleothem from south Oman
    • doi: 10.1029/2001JD001281
    • Burns SJ, Fleitmann D, Mudelsee M, Neff U, Matter A, Mangini A (2002) A 780 yr annually-resolved record of Indian Ocean monsoon precipitation from a speleothem from south Oman. J Geophys Res 107. doi: 10.1029/ 2001JD001281
    • (2002) J Geophys Res , vol.107
    • Burns, S.J.1    Fleitmann, D.2    Mudelsee, M.3    Neff, U.4    Matter, A.5    Mangini, A.6
  • 10
    • 0030818235 scopus 로고    scopus 로고
    • Interaction between the ENSO and the Asian Monsoon in a coral record of tropical climate
    • doi: 10.1126/science.277.5328.925
    • Charles CD, Hunter DE, Fairbanks RG (1997) Interaction between the ENSO and the Asian Monsoon in a coral record of tropical climate. Science 277:925-928. doi: 10.1126/science.277.5328.925
    • (1997) Science , vol.277 , pp. 925-928
    • Charles, C.D.1    Hunter, D.E.2    Fairbanks, R.G.3
  • 11
    • 0141651526 scopus 로고    scopus 로고
    • Monsoon-tropical ocean interaction in a network of coral records spanning the 20th century
    • doi: 10.1016/S0025-3227(03)00217-2
    • Charles CD, Cobb K, Moore MD, Fairbanks RG (2003) Monsoon-tropical ocean interaction in a network of coral records spanning the 20th century. Mar Geol 201:207-222. doi: 10.1016/S0025-3227(03)00217-2
    • (2003) Mar Geol , vol.201 , pp. 207-222
    • Charles, C.D.1    Cobb, K.2    Moore, M.D.3    Fairbanks, R.G.4
  • 12
    • 2442513927 scopus 로고    scopus 로고
    • Tropical Multidecadal and interannual climate variability in the NCEP-NCAR reanalysis
    • doi:10.1175/1520-0442(2004)017<1777:TMAICV>2.0.CO;2
    • Chelliah M, Bell GD (2004) Tropical Multidecadal and interannual climate variability in the NCEP-NCAR reanalysis. J Clim 17:1777-1803. doi:10.1175/1520-0442(2004)017<1777:TMAICV>2.0.CO;2
    • (2004) J Clim , vol.17 , pp. 1777-1803
    • Chelliah, M.1    Bell, G.D.2
  • 13
    • 34547096475 scopus 로고    scopus 로고
    • The influence of tropical Indian Ocean SST on the Indian Summer Monsoon
    • doi: 10.1175/JCLI4161.1
    • Cherchi A, Gualdi S, Behera S, Luo JJ, Masson S, Yamagata T et al (2007) The influence of tropical Indian Ocean SST on the Indian Summer Monsoon. J Clim 20:3083-3105. doi: 10.1175/JCLI4161.1
    • (2007) J Clim , vol.20 , pp. 3083-3105
    • Cherchi, A.1    Gualdi, S.2    Behera, S.3    Luo, J.J.4    Masson, S.5    Yamagata, T.6
  • 14
    • 0034233174 scopus 로고    scopus 로고
    • Indian Ocean SST and Indian summer rainfall: Predictive relationships and their decadal variability
    • doi:10.1175/1520-0442(2000)013<2503:IOSAIS>2.0.CO;2
    • Clark CO, Cole JE, Webster PW (2000) Indian Ocean SST and Indian summer rainfall: Predictive relationships and their decadal variability. J Clim 13:2503-2519. doi:10.1175/1520-0442(2000)013<2503:IOSAIS>2.0.CO;2
    • (2000) J Clim , vol.13 , pp. 2503-2519
    • Clark, C.O.1    Cole, J.E.2    Webster, P.W.3
  • 15
    • 0141788067 scopus 로고    scopus 로고
    • Interdecadal variability of the relationship between the Indian Ocean Zonal Mode and east African coastal rainfall anomalies
    • doi:10.1175/1520-0442(2003)016<0548:IVOTRB>2.0.CO;2
    • Clark CO, Webster PJ, Cole JE (2003) Interdecadal variability of the relationship between the Indian Ocean Zonal Mode and east African coastal rainfall anomalies. J Clim 16:548-554. doi:10.1175/ 1520-0442(2003)016<0548:IVOTRB>2.0.CO;2
    • (2003) J Clim , vol.16 , pp. 548-554
    • Clark, C.O.1    Webster, P.J.2    Cole, J.E.3
  • 16
    • 0035365082 scopus 로고    scopus 로고
    • A central tropical Pacific coral demonstrates Pacific, Indian, and Atlantic decadal climate connections
    • doi: 10.1029/2001GL012919
    • Cobb KM, Charles CD, Hunter DE (2001) A central tropical Pacific coral demonstrates Pacific, Indian, and Atlantic decadal climate connections. Geophys Res Lett 28:2209-2212. doi: 10.1029/2001GL012919
    • (2001) Geophys Res Lett , vol.28 , pp. 2209-2212
    • Cobb, K.M.1    Charles, C.D.2    Hunter, D.E.3
  • 17
    • 33947307331 scopus 로고    scopus 로고
    • Late Holocene linkages between decade-century scale climate varaibility and productivity at Lake Tanganyika, Africa
    • doi: 10.1007/s10933-006-9004-y
    • Cohen AS, Lezzar KE, Cole J, Dettman D, Ellis GS, Gonneea ME et al (2006) Late Holocene linkages between decade-century scale climate varaibility and productivity at Lake Tanganyika, Africa. J Paleolimnol 36:189-209. doi: 10.1007/s10933-006-9004-y
    • (2006) J Paleolimnol , vol.36 , pp. 189-209
    • Cohen, A.S.1    Lezzar, K.E.2    Cole, J.3    Dettman, D.4    Ellis, G.S.5    Gonneea, M.E.6
  • 18
    • 0034723249 scopus 로고    scopus 로고
    • Tropical Pacific forcing of decadal SST variability in the Western Indian Ocean over the past two centuries
    • doi: 10.1126/science.287.5453.617
    • Cole JE, Dunbar RB, McClanahan TR, Muthiga NA (2000) Tropical Pacific forcing of decadal SST variability in the Western Indian Ocean over the past two centuries. Science 287:617-619. doi: 10.1126/ science.287.5453.617
    • (2000) Science , vol.287 , pp. 617-619
    • Cole, J.E.1    Dunbar, R.B.2    McClanahan, T.R.3    Muthiga, N.A.4
  • 19
    • 0038419486 scopus 로고    scopus 로고
    • Dendroclimatic signals in long tree-ring chronologies from the Himalyas of Nepal
    • doi: 10.1002/joc.911
    • Cook ER, Krusic PJ, Jones PD (2003) Dendroclimatic signals in long tree-ring chronologies from the Himalyas of Nepal. Int J Climatol 23:707-732. doi: 10.1002/joc.911
    • (2003) Int J Climatol , vol.23 , pp. 707-732
    • Cook, E.R.1    Krusic, P.J.2    Jones, P.D.3
  • 20
    • 0032172979 scopus 로고    scopus 로고
    • Global variations in droughts and wet spells: 1900-1995
    • doi: 10.1029/98GL52511
    • Dai A, Trenberth KE, Karl TR (1998) Global variations in droughts and wet spells: 1900-1995. Geophys Res Lett 25:3367-3370. doi: 10.1029/ 98GL52511
    • (1998) Geophys Res Lett , vol.25 , pp. 3367-3370
    • Dai, A.1    Trenberth, K.E.2    Karl, T.R.3
  • 21
    • 33751297755 scopus 로고    scopus 로고
    • Enhanced multidecadal climate variability in the seventeenth century from coral isotope records in the western Indian Ocean
    • doi: 10.1029/2005PA001217
    • Damassa TD, Cole JE, Barnett HR, Ault TR, McClanahan TR (2006) Enhanced multidecadal climate variability in the seventeenth century from coral isotope records in the western Indian Ocean. Paleoceanography 21. doi: 10.1029/2005PA001217
    • (2006) Paleoceanography , vol.21
    • Damassa, T.D.1    Cole, J.E.2    Barnett, H.R.3    Ault, T.R.4    McClanahan, T.R.5
  • 22
    • 28944435388 scopus 로고    scopus 로고
    • Tropical-North Pacific climate linkages over the past four centuries
    • doi: 10.1175/JCLI3602.1
    • D'Arrigo R, Wilson R, Deser C, Wiles G, Cook E, Villalba R et al (2005) Tropical-North Pacific climate linkages over the past four centuries. J Clim 18:5253-5265. doi: 10.1175/JCLI3602.1
    • (2005) J Clim , vol.18 , pp. 5253-5265
    • D'Arrigo, R.1    Wilson, R.2    Deser, C.3    Wiles, G.4    Cook, E.5    Villalba, R.6
  • 23
    • 34548596661 scopus 로고    scopus 로고
    • Increased Eurasian-tropical temperature amplitude difference in recent centuries: Implications for the Asian Monsoon
    • doi: 10.1029/2006GL027507
    • D'Arrigo R, Wilson R, Li J (2006) Increased Eurasian-tropical temperature amplitude difference in recent centuries: Implications for the Asian Monsoon. Geophys Res Lett 33. doi: 10.1029/2006GL027507
    • (2006) Geophys Res Lett , vol.33
    • D'Arrigo, R.1    Wilson, R.2    Li, J.3
  • 24
    • 17944366139 scopus 로고    scopus 로고
    • Forcing of the Asian monsoon on the Tibetian Plateau: Evidence from high-resolution ice core and tropical coral records
    • doi: 10.1029/2004JD004933
    • Davis ME, Thompson LG, Yao T, Wang N (2005) Forcing of the Asian monsoon on the Tibetian Plateau: Evidence from high-resolution ice core and tropical coral records. J Geophys Res 110. doi: 10.1029/2004JD004933
    • (2005) J Geophys Res , vol.110
    • Davis, M.E.1    Thompson, L.G.2    Yao, T.3    Wang, N.4
  • 25
    • 4444259428 scopus 로고    scopus 로고
    • Pacific Interdecadal climate variability: Linkages between the tropics and the North Pacific during boreal winter since 1900
    • doi:10.1175/1520-0442(2004)017<3109:PICVLB>2.0.CO;2
    • Deser C, Phillips AS, Hurrell JW (2004) Pacific Interdecadal climate variability: Linkages between the tropics and the North Pacific during boreal winter since 1900. J Clim 17:3109-3124. doi:10.1175/ 1520-0442(2004)017<3109:PICVLB>2.0.CO;2
    • (2004) J Clim , vol.17 , pp. 3109-3124
    • Deser, C.1    Phillips, A.S.2    Hurrell, J.W.3
  • 26
    • 1642411186 scopus 로고    scopus 로고
    • Palaeoclimatic interpretation of high-resolution oxygen isotope profiles derived from annually laminated speleothems from Southern Oman
    • doi: 10.1016/j.quascirev.2003.06.019
    • Fleitmann D, Burns SJ, Neff U, Mudelsee M, Mangini A, Matter A (2004) Palaeoclimatic interpretation of high-resolution oxygen isotope profiles derived from annually laminated speleothems from Southern Oman. Q Sci Rev 23:935-945. doi: 10.1016/j.quascirev.2003.06.019
    • (2004) Q Sci Rev , vol.23 , pp. 935-945
    • Fleitmann, D.1    Burns, S.J.2    Neff, U.3    Mudelsee, M.4    Mangini, A.5    Matter, A.6
  • 27
    • 0035354755 scopus 로고    scopus 로고
    • Low-frequency modulation of the ENSO-Indian monsoon rainfall relationship: Signal or noise?
    • doi:10.1175/1520-0442(2001)014<2486:LFMOTE>2.0.CO;2
    • Gershunov A, Schneider N, Barnett T (2001) Low-frequency modulation of the ENSO-Indian monsoon rainfall relationship: Signal or noise? J Clim 14:2486-2492. doi:10.1175/1520-0442(2001)014<2486:LFMOTE>2.0.CO;2
    • (2001) J Clim , vol.14 , pp. 2486-2492
    • Gershunov, A.1    Schneider, N.2    Barnett, T.3
  • 28
    • 0033609587 scopus 로고    scopus 로고
    • Importance of the Indian Ocean for simulating rainfall anomalies over eastern and southern Africa
    • doi: 10.1029/1999JD900326
    • Goddard L, Graham NE (1999) Importance of the Indian Ocean for simulating rainfall anomalies over eastern and southern Africa. J Geophys Res 104:19099-19116. doi: 10.1029/1999JD900326
    • (1999) J Geophys Res , vol.104 , pp. 19099-19116
    • Goddard, L.1    Graham, N.E.2
  • 29
    • 0027801715 scopus 로고
    • The monsoonal heat budget of the hydrosphere-atmosphere system in the Indian Ocean sector
    • doi: 10.1029/92JC02956
    • Hastenrath S, Greischar L (1993) The monsoonal heat budget of the hydrosphere-atmosphere system in the Indian Ocean sector. J Geophys Res 98:6869-6881. doi: 10.1029/92JC02956
    • (1993) J Geophys Res , vol.98 , pp. 6869-6881
    • Hastenrath, S.1    Greischar, L.2
  • 30
    • 21244496350 scopus 로고    scopus 로고
    • Mechanisms of climate anomalies in the equatorial Indian Ocean
    • doi: 10.1029/2004JD004981
    • Hastenrath S, Polzin D (2005) Mechanisms of climate anomalies in the equatorial Indian Ocean. J Geophys Res 110. doi: 10.1029/2004JD004981
    • (2005) J Geophys Res , vol.110
    • Hastenrath, S.1    Polzin, D.2
  • 31
    • 33746445500 scopus 로고    scopus 로고
    • Detection and attribution of 20th century northern and southern African rainfall change
    • doi: 10.1175/JCLI3842.1
    • Hoerling M, Hurrell J, Eischaid J, Phillips A (2006) Detection and attribution of 20th century northern and southern African rainfall change. J Clim 19:3989-4008. doi: 10.1175/JCLI3842.1
    • (2006) J Clim , vol.19 , pp. 3989-4008
    • Hoerling, M.1    Hurrell, J.2    Eischaid, J.3    Phillips, A.4
  • 32
    • 0032947798 scopus 로고    scopus 로고
    • A 3000-year high-resolution stalagmite-based record of palaeoclimate for northeastern South Africa
    • doi: 10.1191/095968399672625464
    • Holmgren K, Karlén W, Lauritzen SE, Lee-Thorp JA, Partridge TC, Piketh S et al (1999) A 3000-year high-resolution stalagmite-based record of palaeoclimate for northeastern South Africa. Holocene 9:295-309. doi: 10.1191/095968399672625464
    • (1999) Holocene , vol.9 , pp. 295-309
    • Holmgren, K.1    Karlén, W.2    Lauritzen, S.E.3    Lee-Thorp, J.A.4    Partridge, T.C.5    Piketh, S.6
  • 33
    • 8744220212 scopus 로고    scopus 로고
    • Near-surface zonal flow and east african precipitation receipt during austral summer
    • doi:10.1175/1520-0442(2004)017<4070:NZFAEA>2.0.CO;2
    • Hugh MJ (2004) Near-surface zonal flow and east african precipitation receipt during austral summer. J Clim 17:4070-4079. doi:10.1175/ 1520-0442(2004)017<4070:NZFAEA>2.0.CO;2
    • (2004) J Clim , vol.17 , pp. 4070-4079
    • Hugh, M.J.1
  • 34
    • 0032173330 scopus 로고    scopus 로고
    • Precipitation sensitivity to global warming: Comparison of observations with HadCM2 simulations
    • doi: 10.1029/98GL02562
    • Hulme M, Osborn TJ, Johns TJ (1998) Precipitation sensitivity to global warming: Comparison of observations with HadCM2 simulations. Geophys Res Lett 25:3379-3382. doi: 10.1029/98GL02562
    • (1998) Geophys Res Lett , vol.25 , pp. 3379-3382
    • Hulme, M.1    Osborn, T.J.2    Johns, T.J.3
  • 35
    • 0035239060 scopus 로고    scopus 로고
    • Decadal record of climate variability spanning the past 700 yr in the southern tropics of East Africa
    • doi:10.1130/0091-7613(2001)029<0083:DROCVS>2.0.CO;2
    • Johnson TC, Barry SL, Chan Y, Wilkinson P (2001) Decadal record of climate variability spanning the past 700 yr in the southern tropics of East Africa. Geology 29:83-86. doi:10.1130/ 0091-7613(2001)029<0083:DROCVS>2.0.CO;2
    • (2001) Geology , vol.29 , pp. 83-86
    • Johnson, T.C.1    Barry, S.L.2    Chan, Y.3    Wilkinson, P.4
  • 36
    • 0037110397 scopus 로고    scopus 로고
    • Tropical monsoons around Africa: Stability of El Nino-Southern Oscillation associations and links with continental climate
    • doi: 10.1029/2000JC000507
    • Jury MR, Enfield DB, Mélice J-L (2002) Tropical monsoons around Africa: Stability of El Nino-Southern Oscillation associations and links with continental climate. J Geophys Res 107. doi: 10.1029/2000JC000507
    • (2002) J Geophys Res , vol.107
    • Jury, M.R.1    Enfield, D.B.2    Mélice, J.-L.3
  • 37
    • 12744260364 scopus 로고    scopus 로고
    • Modelling the dominant climate signals around southern Africa
    • doi: 10.1007/s00382-004-0468-z
    • Jury MR, White WB, Reason CJC (2004) Modelling the dominant climate signals around southern Africa. Clim Dyn 23:717-726. doi: 10.1007/ s00382-004-0468-z
    • (2004) Clim Dyn , vol.23 , pp. 717-726
    • Jury, M.R.1    White, W.B.2    Reason, C.J.C.3
  • 39
    • 0033004638 scopus 로고    scopus 로고
    • The influence of the decadal-scale variability of summer rainfall on the impact of El Nino and La Nina events in South Africa
    • doi:10.1002/(SICI)1097-0088(199901)19:1<59::AID-JOC347>3.0.CO;2-B
    • Krueger AC (1999) The influence of the decadal-scale variability of summer rainfall on the impact of El Nino and La Nina events in South Africa. Int J Climatol 19:59-68. doi:10.1002/ (SICI)1097-0088(199901)19:1<59::AID-JOC347>3.0.CO;2-B
    • (1999) Int J Climatol , vol.19 , pp. 59-68
    • Krueger, A.C.1
  • 40
    • 0033603403 scopus 로고    scopus 로고
    • On the weekening relationship between the Indian Monsoon and ENSO
    • doi: 10.1126/science.284.5423.2156
    • Kumar KK, Rajagopalan B, Cane MA (1999) On the weekening relationship between the Indian Monsoon and ENSO. Science 284:2156-2159. doi: 10.1126/ science.284.5423.2156
    • (1999) Science , vol.284 , pp. 2156-2159
    • Kumar, K.K.1    Rajagopalan, B.2    Cane, M.A.3
  • 41
    • 1642396692 scopus 로고    scopus 로고
    • Differing trends in the tropical surface tempertures and precipitation over land and oceans
    • doi:10.1175/1520-0442(2004)017<0653:DTITTS>2.0.CO;2
    • Kumar A, Yang F, Goddard L, Schubert S (2004) Differing trends in the tropical surface tempertures and precipitation over land and oceans. J Clim 17:653-664. doi:10.1175/ 1520-0442(2004)017<0653:DTITTS>2.0.CO;2
    • (2004) J Clim , vol.17 , pp. 653-664
    • Kumar, A.1    Yang, F.2    Goddard, L.3    Schubert, S.4
  • 42
    • 0343237743 scopus 로고    scopus 로고
    • Monitoring climate variability over the past 116 years in coral oxygen isotopes from Ningaloo Reef, Western Australia
    • doi: 10.1007/s005310050300
    • Kuhnert H, Pätzold J, Wyrwoll K-H, Wefer G (2000) Monitoring climate variability over the past 116 years in coral oxygen isotopes from Ningaloo Reef, Western Australia. Int J Earth Sci 88:725-732. doi: 10.1007/s005310050300
    • (2000) Int J Earth Sci , vol.88 , pp. 725-732
    • Kuhnert, H.1    Pätzold, J.2    Wyrwoll, K.-H.3    Wefer, G.4
  • 43
    • 0033500796 scopus 로고    scopus 로고
    • The role of Indian Ocean sea surface temperatures in forcing East African rainfall anomalies during December-January 1997/98
    • doi:10.1175/1520-0442(1999)012<3497:TROIOS>2.0.CO;2
    • Latif M, Dommenget D, Dima M, Grötzner A (1999) The role of Indian Ocean sea surface temperatures in forcing East African rainfall anomalies during December-January 1997/98. J Clim 12:3497-3504. doi:10.1175/1520-0442(1999)012<3497:TROIOS>2.0.CO;2
    • (1999) J Clim , vol.12 , pp. 3497-3504
    • Latif, M.1    Dommenget, D.2    Dima, M.3    Grötzner, A.4
  • 44
    • 0031465646 scopus 로고    scopus 로고
    • A Pacific interdecadal iscillation with impacts on salmon production
    • doi:10.1175/1520-0477(1997)078<1069:APICOW>2.0.CO;2
    • Mantua N, Hare S, Zhang Y, Wallace J, Francis R (1997) A Pacific interdecadal iscillation with impacts on salmon production. Bull Am Meteorol Soc 78:1069-1079. doi:10.1175/ 1520-0477(1997)078<1069:APICOW>2.0.CO;2
    • (1997) Bull Am Meteorol Soc , vol.78 , pp. 1069-1079
    • Mantua, N.1    Hare, S.2    Zhang, Y.3    Wallace, J.4    Francis, R.5
  • 45
    • 0028789580 scopus 로고
    • Sea-surface temperature-south African rainfall associations, 1910-1989
    • doi: 10.1002/joc.3370150202
    • Mason SJ (1995) Sea-surface temperature-south African rainfall associations, 1910-1989. Int J Climatol 15:119-135. doi: 10.1002/ joc.3370150202
    • (1995) Int J Climatol , vol.15 , pp. 119-135
    • Mason, S.J.1
  • 46
    • 33745269295 scopus 로고    scopus 로고
    • Multidecadal climate variability of global lands and oceans
    • doi: 10.1002/joc.1289
    • McCabe GJ, Palecki MA (2006) Multidecadal climate variability of global lands and oceans. Int J Climatol 26:849-865. doi: 10.1002/joc.1289
    • (2006) Int J Climatol , vol.26 , pp. 849-865
    • McCabe, G.J.1    Palecki, M.A.2
  • 47
    • 33845702072 scopus 로고    scopus 로고
    • ENSO as an integrating concept in Earth Science
    • doi: 10.1126/science.1132588
    • McPhaden MJ, Zebiak SE, Glantz MG (2006) ENSO as an integrating concept in Earth Science. Science 314:1740-1745. doi: 10.1126/science.1132588
    • (2006) Science , vol.314 , pp. 1740-1745
    • McPhaden, M.J.1    Zebiak, S.E.2    Glantz, M.G.3
  • 48
    • 33744471928 scopus 로고    scopus 로고
    • Megadroughts in the Indian Monsoon Region and Souhwest North America and a mechanism for associted multidecadal Pacific sea surface temperature anomalies
    • doi: 10.1175/JCLI3675.1
    • Meehl GA, Hu A (2006) Megadroughts in the Indian Monsoon Region and Souhwest North America and a mechanism for associted multidecadal Pacific sea surface temperature anomalies. J Clim 19:1605-1623. doi: 10.1175/JCLI3675.1
    • (2006) J Clim , vol.19 , pp. 1605-1623
    • Meehl, G.A.1    Hu, A.2
  • 49
    • 0037091233 scopus 로고    scopus 로고
    • Interannual lake level fluctuations (1993-1999) in Africa from Topex/ Poseidon: Connections with ocean-atmosphere interactions over the Indian Ocean
    • doi: 10.1016/S0921-8181(01)00139-4
    • Mercier F, Cazenave A, Maheu C (2002) Interannual lake level fluctuations (1993-1999) in Africa from Topex/Poseidon: Connections with ocean-atmosphere interactions over the Indian Ocean. Global Planet Change 32:141-163. doi: 10.1016/S0921-8181(01)00139-4
    • (2002) Global Planet Change , vol.32 , pp. 141-163
    • Mercier, F.1    Cazenave, A.2    Maheu, C.3
  • 50
    • 0034484826 scopus 로고    scopus 로고
    • East African rainfall and the Tropical circulation/convection on intrseasonal to interannual timescales
    • doi:10.1175/1520-0442(2000)013<3915:EARATT>2.0.CO;2
    • Mutai CC, Ward MN (2000) East African rainfall and the Tropical circulation/convection on intrseasonal to interannual timescales. J Clim 13:3915-3939. doi:10.1175/1520-0442(2000)013<3915:EARATT>2.0.CO;2
    • (2000) J Clim , vol.13 , pp. 3915-3939
    • Mutai, C.C.1    Ward, M.N.2
  • 54
    • 33646366416 scopus 로고    scopus 로고
    • Monsoon-induced cooling of the western equatorial Indian Ocean as recorded in coral oxygen isotopes records from the Seychelles covering the period 1840-1994 AD
    • doi: 10.1016/j.quascirev.2005.11.005
    • Pfeiffer M, Dullo W-C (2006) Monsoon-induced cooling of the western equatorial Indian Ocean as recorded in coral oxygen isotopes records from the Seychelles covering the period 1840-1994 AD. Q Sci Rev 25:993-1009. doi: 10.1016/j.quascirev.2005.11.005
    • (2006) Q Sci Rev , vol.25 , pp. 993-1009
    • Pfeiffer, M.1    Dullo, W.-C.2
  • 55
    • 15944378911 scopus 로고    scopus 로고
    • Oceanic forcing of interannual and multidecadal climate variability in the southwestern Indian Ocean: Evidence from a 160 year coral isotopic record (La Reunion, 50°E, 21°S)
    • doi: 10.1029/2003PA000964
    • Pfeiffer M, Timm O, Dullo W-C (2004) Oceanic forcing of interannual and multidecadal climate variability in the southwestern Indian Ocean: evidence from a 160 year coral isotopic record (La Reunion, 50°E, 21°S). Paleoceanography 19. doi: 10.1029/2003PA000964
    • (2004) Paleoceanography , vol.19
    • Pfeiffer, M.1    Timm, O.2    Dullo, W.-C.3
  • 56
    • 33845566645 scopus 로고    scopus 로고
    • Paired coral Sr/Ca and d18O records from the Chagos Archipelago: Late twentieth century warming affects rainfall variability in the tropical Indian Ocean
    • doi: 10.1130/G23162A.1
    • Pfeiffer M, Timm O, Dullo W-C, Garbe-Schoenberg D (2006) Paired coral Sr/ Ca and d18O records from the Chagos Archipelago: Late twentieth century warming affects rainfall variability in the tropical Indian Ocean. Geology 34:1069-1072. doi: 10.1130/G23162A.1
    • (2006) Geology , vol.34 , pp. 1069-1072
    • Pfeiffer, M.1    Timm, O.2    Dullo, W.-C.3    Garbe-Schoenberg, D.4
  • 57
    • 0033724968 scopus 로고    scopus 로고
    • Comparison of rainfall structures between NCEP/NCAR reanalysis and observed data over tropical Africa
    • doi: 10.1007/s003820000087
    • Poccard I, Janicot S, Camberlin P (2000) Comparison of rainfall structures between NCEP/NCAR reanalysis and observed data over tropical Africa. Clim Dyn 16:897-915. doi: 10.1007/s003820000087
    • (2000) Clim Dyn , vol.16 , pp. 897-915
    • Poccard, I.1    Janicot, S.2    Camberlin, P.3
  • 58
    • 0035364038 scopus 로고    scopus 로고
    • Subtropical Indian Ocean SST dipole events and southern African rainfall
    • doi: 10.1029/2000GL012735
    • Reason CJC (2001) Subtropical Indian Ocean SST dipole events and southern African rainfall. Geophys Res Lett 28:2225-2227. doi: 10.1029/ 2000GL012735
    • (2001) Geophys Res Lett , vol.28 , pp. 2225-2227
    • Reason, C.J.C.1
  • 59
    • 0037197132 scopus 로고    scopus 로고
    • Sensitivity of the southern African circulation to dipole sea-surface temparature patterns in the south Indian Ocean
    • doi: 10.1002/joc.744
    • Reason CJC (2002) Sensitivity of the southern African circulation to dipole sea-surface temparature patterns in the south Indian Ocean. Int J Climatol 22:377-393. doi: 10.1002/joc.744
    • (2002) Int J Climatol , vol.22 , pp. 377-393
    • Reason, C.J.C.1
  • 60
    • 0033376187 scopus 로고    scopus 로고
    • Relationships between South African rainfall and SST anomalies in the southwest Indian Ocean
    • doi:10.1002/ (SICI)1097-0088(199912)19:15<1651::AID-JOC439>3.0.CO;2-U
    • Reason CJC, Mulenga H (1999) Relationships between South African rainfall and SST anomalies in the southwest Indian Ocean. Int J Climatol 19:1651-1673. doi:10.1002/ (SICI)1097-0088(199912)19:15<1651::AID-JOC439>3.0.CO;2-U
    • (1999) Int J Climatol , vol.19 , pp. 1651-1673
    • Reason, C.J.C.1    Mulenga, H.2
  • 61
    • 0036662803 scopus 로고    scopus 로고
    • ENSO-like decadal variability and South African rainfall
    • doi: 10.1029/2002GL014663
    • Reason CJC, Rouault M (2002) ENSO-like decadal variability and South African rainfall. Geophys Res Lett 29. doi: 10.1029/2002GL014663
    • (2002) Geophys Res Lett , vol.29
    • Reason, C.J.C.1    Rouault, M.2
  • 62
    • 0029903679 scopus 로고    scopus 로고
    • Evidence for the influence of remote forcing on interdecadal variability in the southern Indian Ocean
    • doi: 10.1029/96JC00122
    • Reason CJC, Allan RJ, Lindesay JA (1996) Evidence for the influence of remote forcing on interdecadal variability in the southern Indian Ocean. J Geophys Res 101:11876-11882. doi: 10.1029/96JC00122
    • (1996) J Geophys Res , vol.101 , pp. 11876-11882
    • Reason, C.J.C.1    Allan, R.J.2    Lindesay, J.A.3
  • 63
    • 0033679804 scopus 로고    scopus 로고
    • Modification of the southern African rainfall variability/ENSO relationship since the late 1960's
    • doi: 10.1007/s003820000086
    • Richard Y, Trzaska S, Roucou P, Rouault M (2000) Modification of the southern African rainfall variability/ENSO relationship since the late 1960's. Clim Dyn 16:883-895. doi: 10.1007/s003820000086
    • (2000) Clim Dyn , vol.16 , pp. 883-895
    • Richard, Y.1    Trzaska, S.2    Roucou, P.3    Rouault, M.4
  • 64
    • 0000335197 scopus 로고
    • Global and regional scale precipitation pattern associated with the El Nino/Southern Oscillation
    • doi:10.1175/1520-0493(1987)115<1606:GARSPP>2.0.CO;2
    • Ropelewski CF, Halpert MS (1987) Global and regional scale precipitation pattern associated with the El Nino/Southern Oscillation. Mon Weather Rev 115:1606-1626. doi:10.1175/ 1520-0493(1987)115<1606:GARSPP>2.0.CO;2
    • (1987) Mon Weather Rev , vol.115 , pp. 1606-1626
    • Ropelewski, C.F.1    Halpert, M.S.2
  • 66
    • 7044235755 scopus 로고    scopus 로고
    • Evolution and features of global land June-August dry/wet periods during 1920-2000
    • doi: 10.1002/joc.1034
    • Shi N, Chen L (2004) Evolution and features of global land June-August dry/wet periods during 1920-2000. Int J Climatol 24:1483-1493. doi: 10.1002/joc.1034
    • (2004) Int J Climatol , vol.24 , pp. 1483-1493
    • Shi, N.1    Chen, L.2
  • 67
    • 0037790554 scopus 로고    scopus 로고
    • Extended reconstruction of Global Sea Surface temperatures based on COADS data (1854-1997)
    • doi:10.1175/1520-0442(2003)16<1228:ABTSAT>2.0.CO;2
    • Smith TM, Reynolds RW (2003) Extended reconstruction of Global Sea Surface temperatures based on COADS data (1854-1997). J Clim 16:1495-1510. doi:10.1175/1520-0442(2003)16<1228:ABTSAT>2.0.CO;2
    • (2003) J Clim , vol.16 , pp. 1495-1510
    • Smith, T.M.1    Reynolds, R.W.2
  • 68
    • 0029659744 scopus 로고    scopus 로고
    • Longest instrumental regional and all-India summer monsoon rainfall series using optimum observations: Reconstruction and update
    • doi: 10.1177/095968369600600306
    • Sontakke NA, Singh N (1996) Longest instrumental regional and all-India summer monsoon rainfall series using optimum observations: reconstruction and update. Holocene 6:315-331. doi: 10.1177/ 095968369600600306
    • (1996) Holocene , vol.6 , pp. 315-331
    • Sontakke, N.A.1    Singh, N.2
  • 69
    • 13844299403 scopus 로고    scopus 로고
    • Solar variability and the levels of Lake Victoria, East Africa, during the last millenium
    • doi: 10.1007/s10933-004-4227-2
    • Stager JC, Ryves D, Cumming BF, Meeker LD, Beer J (2005) Solar variability and the levels of Lake Victoria, East Africa, during the last millenium. J Paleolimnol 33:243-251. doi: 10.1007/s10933-004-4227-2
    • (2005) J Paleolimnol , vol.33 , pp. 243-251
    • Stager, J.C.1    Ryves, D.2    Cumming, B.F.3    Meeker, L.D.4    Beer, J.5
  • 70
    • 3342949589 scopus 로고    scopus 로고
    • Water balance of Lake Victoria: Update to 2000 and cliamte change modelling to 2001
    • doi: 10.1623/hysj.49.4.563.54422
    • Tate E, Sutcliffe J, Conway D, Farquharson F (2004) Water balance of Lake Victoria: Update to 2000 and cliamte change modelling to 2001. J Hydrol Sci 49:563-574. doi: 10.1623/hysj.49.4.563.54422
    • (2004) J Hydrol Sci , vol.49 , pp. 563-574
    • Tate, E.1    Sutcliffe, J.2    Conway, D.3    Farquharson, F.4
  • 71
    • 33645962831 scopus 로고    scopus 로고
    • Tree-ring reconstructed rainfall variability in Zimbabwe
    • doi: 10.1007/s00382-005-0108-2
    • Therell MD, Stahle DW, Ries LP, Shugart HH (2006) Tree-ring reconstructed rainfall variability in Zimbabwe. Clim Dyn 26. doi: 10.1007/s00382-005-0108-2
    • (2006) Clim Dyn , vol.26
    • Therell, M.D.1    Stahle, D.W.2    Ries, L.P.3    Shugart, H.H.4
  • 72
    • 18644375919 scopus 로고    scopus 로고
    • Kilimanjaro Ice core records: Evidence of Holocene climate change in Tropical Africa
    • doi: 10.1126/science.1073198
    • Thompson LG, Mosley-Thompson E, Davis ME, Henderson KA, Brecher HH, Zagorodnov VS et al (2002) Kilimanjaro Ice core records: Evidence of Holocene climate change in Tropical Africa. Science 298:589-593. doi: 10.1126/science.1073198
    • (2002) Science , vol.298 , pp. 589-593
    • Thompson, L.G.1    Mosley-Thompson, E.2    Davis, M.E.3    Henderson, K.A.4    Brecher, H.H.5    Zagorodnov, V.S.6
  • 73
    • 0042174021 scopus 로고    scopus 로고
    • Tropical glacier and ice core evidence of climate change on annual to millenial time scales
    • doi: 10.1023/A:1024472313775
    • Thompson LG, Mosley-Thompson E, Davis ME, Lin P-N, Henderson K, Mashiotta TA (2003) Tropical glacier and ice core evidence of climate change on annual to millenial time scales. Clim Change 59:137-155. doi: 10.1023/A:1024472313775
    • (2003) Clim Change , vol.59 , pp. 137-155
    • Thompson, L.G.1    Mosley-Thompson, E.2    Davis, M.E.3    Lin, P.-N.4    Henderson, K.5    Mashiotta, T.A.6
  • 74
    • 16344384092 scopus 로고    scopus 로고
    • Non-stationary ENSO-precipitation teleconnection over the equatorial Indian Ocean documented in a coral from the Chagos Archipelago
    • doi: 10.1029/2004GL021738
    • Timm O, Pfeiffer M, Dullo W-C (2005) Non-stationary ENSO-precipitation teleconnection over the equatorial Indian Ocean documented in a coral from the Chagos Archipelago. Geophys Res Lett 32. doi: 10.1029/ 2004GL021738
    • (2005) Geophys Res Lett , vol.32
    • Timm, O.1    Pfeiffer, M.2    Dullo, W.-C.3
  • 75
    • 33646357523 scopus 로고    scopus 로고
    • The twentieth century was the wettest period in northern Pakistan over the past millenium
    • doi: 10.1038/nature04743
    • Treydte KS, Schleser GH, Helle G, Frank DC, Winiger M, Haug GH et al (2006) The twentieth century was the wettest period in northern Pakistan over the past millenium. Nature 440:1179-1182. doi: 10.1038/nature04743
    • (2006) Nature , vol.440 , pp. 1179-1182
    • Treydte, K.S.1    Schleser, G.H.2    Helle, G.3    Frank, D.C.4    Winiger, M.5    Haug, G.H.6
  • 76
    • 0036647264 scopus 로고    scopus 로고
    • Millennial to multi-decadal variability in the climate of Southern Africa
    • doi: 10.1002/joc.787
    • Tyson PD, Cooper GRJ, McCarthy TS (2002) Millennial to multi-decadal variability in the climate of Southern Africa. Int J Climatol 22:1105-1117. doi: 10.1002/joc.787
    • (2002) Int J Climatol , vol.22 , pp. 1105-1117
    • Tyson, P.D.1    Cooper, G.R.J.2    McCarthy, T.S.3
  • 78
    • 34248160792 scopus 로고    scopus 로고
    • Decadal and century-scale climate variability in tropical Africa during the past 2000 years
    • In: Battarbee RW (ed) Kluwer, Dordrecht
    • Verschuren D (2004) Decadal and century-scale climate variability in tropical Africa during the past 2000 years. In: Battarbee RW (ed) Past Climate Variability through Europe and Africa. Kluwer, Dordrecht
    • (2004) Past Climate Variability Through Europe and Africa
    • Verschuren, D.1
  • 79
    • 0034719447 scopus 로고    scopus 로고
    • Rainfall and drought in equatorial east Africa during the past 1,100 years
    • doi: 10.1038/35000179
    • Verschuren D, Laird KR, Cumming BF (2000) Rainfall and drought in equatorial east Africa during the past 1,100 years. Nature 403:410-414. doi: 10.1038/35000179
    • (2000) Nature , vol.403 , pp. 410-414
    • Verschuren, D.1    Laird, K.R.2    Cumming, B.F.3
  • 80
    • 0032577958 scopus 로고    scopus 로고
    • Monsoons: Processes, predictability, and the prospects for prediction
    • doi: 10.1029/97JC02719
    • Webster PJ, Magana VO, Palmer TN, Shukla J, Tomas RA, Yanai M et al (1998) Monsoons: Processes, predictability, and the prospects for prediction. J Geophys Res 103:14451-14510. doi: 10.1029/97JC02719
    • (1998) J Geophys Res , vol.103 , pp. 14451-14510
    • Webster, P.J.1    Magana, V.O.2    Palmer, T.N.3    Shukla, J.4    Tomas, R.A.5    Yanai, M.6
  • 81
    • 33846532244 scopus 로고    scopus 로고
    • Climatic and oceanic associations with daily rainfall extremes over southern Africa
    • doi: 10.1002/joc.1376
    • Williams CJR, Kniveton DR, Layberry R (2006) Climatic and oceanic associations with daily rainfall extremes over southern Africa. Int J Climatol 20. doi: 10.1002/joc.1376
    • (2006) Int J Climatol , vol.20
    • Williams, C.J.R.1    Kniveton, D.R.2    Layberry, R.3
  • 82
    • 33845601702 scopus 로고    scopus 로고
    • 250 years of reconstructed and modeled tripical temperatures
    • doi: 10.1029/2005JC003188
    • Wilson R, Tudhope S, Brohan P, Osborn T, Briffa K, Tett S (2006) 250 years of reconstructed and modeled tripical temperatures. J Geophys Res 111. doi: 10.1029/2005JC003188
    • (2006) J Geophys Res , vol.111
    • Wilson, R.1    Tudhope, S.2    Brohan, P.3    Osborn, T.4    Briffa, K.5    Tett, S.6
  • 83
    • 0023116477 scopus 로고    scopus 로고
    • A comprehensive Ocean-Atmosphere data set
    • doi:10.1175/1520-0477(1987)068<1239:ACOADS>2.0.CO;2
    • Woodruff SD, Jenne RL, Slutz RJ, Steurer PM (1998) A comprehensive Ocean-Atmosphere data set. Bull Am Meteorol Soc 68:1239-1248. doi:10.1175/1520-0477(1987)068<1239:ACOADS>2.0.CO;2
    • (1998) Bull Am Meteorol Soc , vol.68 , pp. 1239-1248
    • Woodruff, S.D.1    Jenne, R.L.2    Slutz, R.J.3    Steurer, P.M.4
  • 84
    • 8644264306 scopus 로고    scopus 로고
    • Evidence for the climate during the Late Maunder Minimum from proxy data and model
    • A - Eisenhauer - KIHZ-Consortium et al In: von Storch H, Raschke E, Floeser G (eds) Springer, Berlin KIHZ
    • Zinke J, von Storch H, Mueller B, Zorita E, Rein B, Mieding B, A - Eisenhauer - KIHZ-Consortium et al (2004a) Evidence for the climate during the Late Maunder Minimum from proxy data and model simulations available within KIHZ. In: Von Storch H, Raschke E, Floeser G (eds) The climate in historical times - towards a synthesis of Holocene proxy data and climate models. Springer, Berlin simulations available within KIHZ
    • (2004) The Climate in Historical Times - Towards a Synthesis of Holocene Proxy Data and Climate Models
    • Zinke, J.1    von Storch, H.2    Mueller, B.3    Zorita, E.4    Rein, B.5    Mieding, B.6
  • 85
    • 8644243115 scopus 로고    scopus 로고
    • ENSO and subtropical dipole variability is recorded in a coral record off southwest Madagascar for the period 1659 to 1995
    • doi: 10.1016/j.epsl.2004.09.028
    • Zinke J, Dullo W-C, Heiss GA, Eisenhauer A (2004b) ENSO and subtropical dipole variability is recorded in a coral record off southwest Madagascar for the period 1659 to 1995. Earth Planet Sci Lett 228:177-197. doi: 10.1016/j.epsl.2004.09.028
    • (2004) Earth Planet Sci Lett , vol.228 , pp. 177-197
    • Zinke, J.1    Dullo, W.-C.2    Heiss, G.A.3    Eisenhauer, A.4
  • 86
    • 11244328273 scopus 로고    scopus 로고
    • Atmosphere-Ocean dynamics in the western Indian Ocean recorded in corals
    • doi: 10.1098/rsta.2004.1482
    • Zinke J, Pfeiffer M, Timm O, Dullo W-C, Davies GR (2005) Atmosphere-Ocean dynamics in the western Indian Ocean recorded in corals. Philos Trans R Soc A 363:121-142. doi: 10.1098/rsta.2004.1482
    • (2005) Philos Trans R Soc A , vol.363 , pp. 121-142
    • Zinke, J.1    Pfeiffer, M.2    Timm, O.3    Dullo, W.-C.4    Davies, G.R.5


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