Challenges for drought mitigation in Africa: The potential use of geospatial data and drought information systems

Applied Geography

Volumn 34, Issue , 2012, Pages 471-486

  Vicente Serrano, Sergio M ^a   Beguería, Santiago ^b   Gimeno, Luis ^c   Eklundh, Lars ^d   Giuliani, Gregory ^e   Weston, Derek ^f   El Kenawy, Ahmed ^g   López Moreno, Juan I ^a   Nieto, Raquel ^c   Ayenew, Tenalem ^h   Konte, Diawoye ⁱ   Ardö, Jonas ^d   Pegram, Geoffrey G S ^j  

^a INSTITUTO PIRENAICO DE ECOLOGÍA   (Spain)

^b CSIC   (Spain)

^c UNIVERSITY OF VIGO   (Spain)

^d LUND UNIVERSITY   (Sweden)

^e UNIVERSITY OF GENEVA   (Switzerland)

^f Pegasys Strategy and Development   (South Africa)

^g MANSOURA UNIVERSITY   (Egypt)

^h ADDIS ABABA UNIVERSITY   (Ethiopia)

ⁱ Institut du Sahel (INSAH)   (South Africa)

^j UNIVERSITY OF KWAZULU NATAL   (South Africa)

more..

Author keywords

Capacity building; Drought; Drought forecasting; Drought indices; Drought risk; Drought vulnerability; Earth observation; NDVI; Risk mitigation; Standardized Precipitation Evapotranspiration Index

Indexed keywords

EID: 84857550466     PISSN: 01436228     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.apgeog.2012.02.001     Document Type: Article

References (139)

1. Abramopoulos, F., Rosenzweig, C., Choudhury, B., Improved ground hydrology calculations for global climate models (GCMs): soil water movement and evapotranspiration. Journal of Climate 1 (1988), 921–941.
2. Antwi-Agyei, P., Fraser, E.D.G., Dougill, A.J., Stringer, L.C., Simelton, E., Mapping the vulnerability of crop production to drought in Ghana using rainfall, yield and socioeconomic data. Applied Geography 32 (2012), 324–334.
3. Anyamba, A., Tucker, C.J., Analysis of Sahelian vegetation dynamics using NOAA-AVHRR NDVI data from 1981–2003. Journal of Arid Environments 63 (2005), 596–614.
4. Arnold, J.G., Allen, P.M., Bernhardt, G., A comprehensive surface-groundwater flow model. Journal of Hydrology 142 (1993), 47–69.
5. Bandyopadhyay, S., Kanji, S., Wang, L., The impact of rainfall and temperature variation on diarrheal prevalence in Sub-Saharan Africa. Applied Geography 33 (2012), 63–72.
6. Barbier, B., Yacouba, H., Karambiri, H., Zorome, M., Some, M., Human vulnerability to climate variability in the Sahel: farmers’ adaptation strategies in northern Burkina Faso. Environmental Management 43 (2009), 790–803.
7. Batterbury, S., Warren, A., The African Sahel 25 years after the great drought: assessing progress and moving towards new agendas and approaches. Global Environmental Change 11 (2001), 1–8.
8. Beguería, S., Angulo-Martínez, M., Vicente-Serrano, S.M., López-Moreno, J.I., Kenawy, A., Assessing temporal trends in extreme precipitation by non-stationary peaks-over-threshold analysis, NE Spain 1930–2006. International Journal of Climatology 31 (2011), 2102–2114.
9. Beguería, S., Vicente-Serrano, S.M., Angulo, M., A multi-scalar global drought data set: the SPEIbase: a new gridded product for the analysis of drought variability and impacts. Bulletin of the American Meteorological Society 91 (2010), 1351–1354.
10. Beguería, S., Vicente-Serrano, S.M., López-Moreno, J.I., García-Ruiz, J.M., Annual and seasonal mapping of peak intensity, magnitude and duration of extreme precipitation events across a climatic gradient, North-east Iberian Peninsula. International Journal of Climatology 29 (2009), 1759–1779.
11. Beven, K., Changing ideas in hydrology - the case of physically-based models. Journal of Hydrology 105 (1989), 157–172.
12. Bhavnani, R., Vordzorgbe, S., Owor, M., Bousquet, F., Report on the status of disaster risk reduction in the sub-saharian Africa region. 2008, Commission of the African Union, United nations and the World Bank http://www.unisdr.org/files/2229_DRRinSubSaharanAfricaRegion.pdf.
13. Blaikie, P., Cannon, T., Davis, I., Wisner, B., At risk, natural hazards, people's vulnerability, and disasters. 1994, Routledge, London.
14. Breshears, D.D., Cobb, N.S., Rich, P.M., Price, K.P., Allen, C.D., Balice, R.G., et al. Regional vegetation die-off in response to global-change-type drought. Proceedings of the National Academy of Sciences of the United States of America 102 (2005), 15144–15148.
15. Brown, C., Meeks, R., Hunu, K., Yu, W., Hydroclimate risk to economic growth in sub-Saharan Africa. Climatic Change 106 (2011), 621–647.
16. Bruce, J.P., Natural disaster reduction and global change. Bulletin of the American Meteorological Society 75 (1994), 1831–1835.
17. Burke, M., Miguel, E., Satyanath, S., Dykema, J.A., Lobell, D.B., Warming increases the risk of civil war in Africa. Proceedings of the National Academy of Sciences of the United States of America 106 (2009), 20670–20674.
18. Burton, I., Kates, R.W., White, G.F., The environment as hazard. 1978, Oxford University Press, Nueva York.
19. Calain, P., From the field side of the binoculars: a different view on global public health surveillance. Health Policy and Planning 22 (2007), 13–20.
20. Camberlin, P., Janicot, S., Poccard, I., Seasonality and atmospheric dynamics of the teleconnection between African rainfall and tropical sea-surface temperature: atlantic vs. ENSO. International Journal of Climatology 21 (2001), 973–1005.
21. Carbone, G.J., Rhee, J., Mizzell, H.P., Boyles, R., Decision support: a regional-scale drought monitoring tool for the Carolinas. Bulletin of the American Meteorological Society 89 (2008), 20–28.
22. Carnicer, J., Coll, M., Ninyerola, M., Pons, X., Sánchez, G., Peñuelas, J., Widespread crown condition decline, food web disruption, and amplified tree mortality with increased climate change-type drought. Proceedings of the National Academy of Sciences of the United States of America 108 (2011), 1474–1478.
23. Chen, D., Cane, M.A., Kaplan, A., Zebiak, S.E., Huang, D.J., Predictability of El Nino over the past 148 years. Nature 428 (2004), 733–736.
24. Coles, S., An introduction to statistical modeling of extreme values. 2001, Springer-Verlag, London.
25. Conway, D., Schipper, E.L.F., Adaptation to climate change in Africa: challenges and opportunities identified from Ethiopia. Global Environmental Change 21 (2011), 227–237.
26. CRDE, The centre for research on the Epidemiology of disasters. 2011, Universite Catholique de Louvain, Brussels – Belgium Disasters Database http://www.cred.be/emdat/intro.htm.
27. Dai, A., Drought under global warming: a review. Wiley Interdisciplinary Reviews: Climate Change 2 (2011), 45–65.
28. Dai, A., Qian, T., Trenberth, K.E., Milliman, J.D., Changes in continental freshwater discharge from 1948–2004. Journal of Climate 22 (2009), 2773–2791.
29. Diallo, O., Diouf, A., Hanan, N.P., Ndiaye, A., Prévost, Y., AVHRR monitoring of savanna primary production in Senegal, West Africa: 1987–1988. International Journal of Remote Sensing 12 (1991), 1259–1279.
30. Dinar, A., Keck, A., Water supply variability and drought impact and mitigation in sub-Saharan Africa. Wilhite, D.A., (eds.) Drought: A global assessment, 2000, Routledge, London.
31. Dracup, J.A., Lee, K., Paulson, E.G., On the definition of droughts. Water Resources Research 16 (1980), 297–302.
32. Dubrovsky, M., Svoboda, M.D., Trnka, M., Hayes, M.J., Wilhite, D.A., Zalud, Z., et al. Application of relative drought indices in assessing climate-change impacts on drought conditions in Czechia. Theoretical and Applied Climatology 96 (2008), 155–171.
33. Eklundh, L., Olsson, L., Vegetation index trends for the African Sahel 1982–1999. Geophysical Research Letters, 30, 2003, 1430.
34. Fensholt, R., Sandholt, I., Rasmussen, M.S., Evaluation of MODIS LAI, fAPAR and the relation between fAPAR and NDVI in a semi-arid environment using in situ measurements. Remote Sensing of Environment 91:3-4 (2004), 490–507.
35. Fiorillo, F., Guadagno, F.M., Karst spring discharges analysis in relation to drought periods, using the SPI. Water Resources Management 24 (2010), 1867–1884.
36. Frías, M.D., Herrera, S., Cofiño, A.S., Gutiérrez, J.M., Assessing the skill of precipitation and temperature seasonal forecasts in Spain. Windows of Opportunity related to ENSO events. Journal of Climate 23 (2010), 209–220.
37. Giuliani, G., Peduzzi, P., The PREVIEW global risk data platform: a geoportal to serve and share global data on risk to natural hazards. Natural Hazards and Earth System Sciences 11 (2011), 53–66.
38. Giuliani, G., Ray, N., Schwarzer, S., De Bono, A., Dao, H., Peduzzi, P., et al. Sharing environmental data through GEOSS. International Journal of Applied Geospatial Research 2 (2011), 1–17.
39. Godfrey, M., Sophal, C., Kato, T., Vou Piseth, L., Dorina, P., Saravy, T., et al. Technical assistance and capacity development in an aid-dependent economy: the experience of Cambodia. World Development 30 (2002), 355–373.
40. Grünthal, G., Thieken, A.H., Schwarz, J., Radtke, K.S., Smolka, A., Merz, B., Comparative risk assessments for the city of Cologne - storms, floods, earthquakes. Natural Hazards 38 (2006), 21–44.
41. Havens, A.V., Drought and agriculture. Weatherwise 7 (1954), 51–55.
42. Heim, R.R., A review of twentieth-century drought indices used in the United States. Bulletin of the American Meteorological Society 83 (2002), 1149–1165.
43. Heumann, B.W., Seaquist, J.W., Eklundh, L., Jönsson, P., AVHRR derived Phenological change in the sahel and Soudan, Africa, 1982–2005. Remote Sensing of Environment 108 (2007), 385–392.
44. Hickler, T., Eklundh, L., Seaquist, J., Smith, B., Ardö J., Olsson, L., et al. Precipitation controls Sahel greening trend. Geophysical Research Letters, 32, 2005, L21415.
45. Hoerling, M.P., Kumar, A., Zhong, M., El Niño, La Niña, and the nonlinearity of their teleconnections. Journal of Climate 10 (1997), 1769–1786.
46. Holden, S., Shiferaw, B., Land degradation, drought and food security in a less-favoured area in the Ethiopian highlands: a bio-economic model with market imperfections. Agricultural Economics 30 (2004), 31–49.
47. Iglesias, A., Garrote, L., Flores, F., Moneo, M., Challenges to manage the risk of water scarcity and climate change in the Mediterranean. Water Resources Management 21 (2007), 775–788.
48. Jönsson, P., Eklundh, L., Seasonality extraction and noise removal by function fitting to time-series of satellite sensor data. IEEE Transactions of Geoscience and Remote Sensing 40 (2002), 1824–1832.
49. Jönsson, P., Eklundh, L., Timesat - a program for analyzing time-series of satellite sensor data. Computers and Geosciences 30 (2004), 833–845.
50. Jain, S.K., Keshri, R., Goswami, A., Sarkar, A., Chaudhry, A., Identification of drought-vulnerable areas using NOAA AVHRR data. International Journal of Remote Sensing 30 (2009), 2653–2668.
51. Janicot, S., Moron, V., Fontaine, B., Sahel droughts and ENSO dynamics. Geophysical Research Letters 23 (1996), 515–518.
52. Janicot, S., Trzaska, S., Poccard, I., Summer Sahel-ENSO teleconnection and decadal time scale SST variations. Climate Dynamics 18 (2001), 303–320.
53. Jankowska, M.M., Lopez-Carr, D., Funk, Dh., Husak, G.J., Chafe, A.A., Climate change and human health: spatial modeling of water availability, malnutrition, and livelihoods in Mali, Africa. Applied Geography 33 (2012), 4–15.
54. Ji, L., Peters, A.J., Assessing vegetation response to drought in the northern Great Plains using vegetation and drought indices. Remote Sensing of Environment 87 (2003), 85–98.
55. Jin, E.K., Kinter, J.L. III, Wang, B., Park, C.-K., Kang, I.-S., Kirtman, B.P., et al. Current status of ENSO prediction skill in coupled ocean-atmosphere models. Climate Dynamics 31 (2008), 647–664.
56. Katz, R.W., Parlange, M.B., Naveau, P., Statistics of extremes in hydrology. Advances in Water Resources 25 (2002), 1287–1304.
57. Keyantash, J., Dracup, J., The quantification of drought: an evaluation of drought indices. Bulletin of the American Meteorological Society 83 (2002), 1167–1180.
58. Khan, S., Gabriel, H.F., Rana, T., Standard precipitation index to track drought and assess impact of rainfall on watertables in irrigation areas. Irrigation and Drainage Systems 22 (2008), 159–177.
59. Kogan, F.N., Global drought watch from space. Bulletin of the American Meteorological Society 78 (1997), 621–636.
60. Lana, X., Martínez, M.D., Burgueño, A., Serra, C., Martín-Vide, J., Gómez, L., Distributions of long dry spells in the Iberian Peninsula, years 1951–1990. International Journal of Climatology 26 (2006), 1999–2021.
61. Lorenzo-Lacruz, J., Vicente-Serrano, S.M., López-Moreno, J.I., Beguería, S., García-Ruiz, J.M., Cuadrat, J.M., The impact of droughts and water management on various hydrological systems in the headwaters of the Tagus River (central Spain). Journal of Hydrology 386 (2010), 13–26.
62. Marin, S., Avouac, J.-P., Nicolas, M., Schlupp, A., A probabilistic approach to seismic hazard in metropolitan France. Bulletin of the Seismological Society of America 94 (2004), 2137–2163.
63. McKee, T.B.N., Doesken, J., Kleist, J., The relationship of drought frequency and duration to time scales. Eight Conf. On Applied Climatology. Anaheim, CA, 1993, Amer. Meteor. Soc, 179–184.
64. Milich, L., Weiss, E., Characterization of the Sahel: implications of correctly calculating interannual coefficient of variation (CoVs) from GAC NDVI values. International Journal of Remote Sensing 18 (1997), 3749–3759.
65. Mishra, A.K., Singh, V.P., A review of drought concepts. Journal of Hydrology 391 (2010), 202–216.
66. Mitchell, T.D., Jones, P.D., An improved method of constructing a database of monthly climate observations and associated high-resolution grids. International Journal of Climatology 25 (2005), 693–712.
67. Murphy, S.J., Washington, R., Downing, T.E., Martin, R.V., Ziervogel, G., Preston, A., et al. Seasonal forecasting for climate hazards: prospects and responses. Natural Hazards 23 (2001), 171–196.
68. Mutai, C.C., Ward, M.N., Colman, A.W., Towards the prediction of the East Africa short rains based on sea-surface temperature-atmosphere coupling. International Journal of Climatology 18 (1998), 975–997.
69. Nadarajah, S., A bivariate Pareto model for drought. Stochastic Environmental Research and Risk Assessment 23 (2009), 811–822.
70. Narasimhan, B., Srinivasan, R., Development and evaluation of soil moisture deficit index (SMDI) and evapotranspiration deficit index (ETDI) for agricultural drought monitoring. Agricultural and Forest Meteorology 133 (2005), 69–88.
71. Nicholson, S.E., Entekhabi, D., The quasi-periodic behavior of rainfall variability in Africa and its relationship to the southern oscillation. Archives for Meteorology, Geophysics, and Bioclimatology Series A 34:3-4 (1986), 311–348.
72. Nicholson, S.E., Kim, J., The relationship of the el Niño-southern oscillation to African rainfall. International Journal of Climatology 17 (1997), 117–135.
73. Nicholson, S.E., Tucker, C.J., Ba, M.B., Desertification, drought and surface vegetation: an example from the west African Sahel. Bulletin of the American Meteorological Society 79 (1998), 815–829.
74. Nicholson, S.E., Webster, P.J., A physical basis for the interannual variability of rainfall in the Sahel. Quarterly Journal of the Royal Meteorological Society 133 (2007), 2065–2084.
75. Ntale, H.K., Gan, T.Y., Drought indices and their application to East Africa. International Journal of Climatology 23 (2003), 1335–1357.
76. Obasi, G.O.P., WMO's role in the international decade for natural disaster reduction. Bulletin of the American Meteorological Society 75 (1994), 1655–1661.
77. Palmer, W.C., Meteorological droughts. Research Paper 45, 1965, U.S. Department of Commerce Weather Bureau.
78. Palmer, T.N., Alessandri, A., Andersen, U., Cantelaube, P., Davey, M., Délécluse, P., et al. Development of a European multimodel ensemble system for seasonal-to-interannual prediction (DEMETER). Bulletin of the American Meteorological Society 85 (2004), 853–872.
79. Palmer, T.N., Shutts, G.J., Hagedorn, R., Doblas-Reyes, F.J., Jung, T., Leutbecher, M., Representing model uncertainty in weather and climate prediction. Annual Review of Earth and Planetary Sciences 33 (2005), 163–193.
80. Patel, N.R., Chopra, P., Dadhwal, V.K., Analyzing spatial patterns of meteorological drought using standardized precipitation index. Meteorological Applications 14 (2007), 329–336.
81. Peduzzi, P., Dao, H., Herold, C., Mouton, F., Assessing global exposure and vulnerability towards natural hazards: the disaster risk index. Natural Hazard and Earth System Science 9 (2009), 1149–1159.
82. Philander, S.G., Fedorov, A., Is El Niño sporadic or cyclic?. Annual Review of Earth and Planetary Sciences 31 (2003), 579–594.
83. Philippon, N., Camberlin, P., Fauchereau, N., Empirical predictability study of October-December east African rainfall. Quarterly Journal of the Royal Meteorological Society 128 (2002), 2239–2256.
84. Pohl, B., Janicot, S., Fontaine, B., Marteau, R., Implication of the Madden-Julian oscillation in the 40-day variability of the West African monsoon. Journal of Climate 22 (2009), 3769–3785.
85. Prince, S.D., Becker-Reshef, I., Rishmawi, K., Detection and mapping of long-term land degradation using local net production scaling: application to Zimbabwe. Remote Sensing of Environment 113 (2009), 1046–1057.
86. Quiring, S.M., Ganesh, S., Evaluating the utility of the Vegetation Condition Index (VCI) for monitoring meteorological drought in Texas. Agricultural and Forest Meteorology 150 (2010), 330–339.
87. Rebetez, M., Mayer, H., Dupont, O., Schindler, D., Gartner, K., Kropp, J.P., et al. Heat and drought 2003 in Europe: a climate synthesis. Annals of Forest Science 63 (2006), 569–577.
88. Redmond, K.T., The depiction of drought. Bulletin of the American Meteorological Society 83 (2002), 1143–1147.
89. Rodima-Taylor, D., Social innovation and climate adaptation: local collective action in diversifying Tanzania. Applied Geography 33 (2012), 128–134.
90. Rodriguez-Fonseca, B., de Castro, M., On the connection between winter anomalous precipitation in the Iberian Peninsula and North West Africa and the summer subtropical Atlantic sea surface temperature. Geophysical Research Letters, 29, 2002, 1863, 10.1029/2001GL014421.
91. Rodwell, M.J., Rowell, D.P., Folland, C.K., Oceanic forcing of the wintertime North Atlantic Oscillation and European climate. Nature 398:6725 (1999), 320–323.
92. Rouault, M., Richard, Y., Intensity and spatial extent of droughts in southern Africa. Geophysical Research Letters, 32, 2005, L15702, 10.1029/2005GL022436.
93. Rowell, D.P., Teleconnections between the tropical Pacific and the Sahel. Quarterly Journal of the Royal Meteorological Society 127 (2001), 1683–1706.
94. Saha, S., Nadiga, S., Thiaw, C., Wang, J., Wang, W., Zhang, Q., et al. The NCEP climate forecast system. Journal of Climate 19 (2006), 3483–3517.
95. Saji, N.H., Goswaml, B.N., Vinayachandran, P.N., Yamagata, T., A dipole mode in the tropical Indian Ocean. Nature 401 (1999), 360–363.
96. Saji, N.H., Yamagata, T., Possible impacts of Indian Ocean dipole mode events on global climate. Climate Research 25 (2003), 151–169.
97. Saravi, M.M., Safdari, A.A., Malekian, A., Intensity-duration-frequency and spatial analysis of droughts using the standardized precipitation index. Hydrology and Earth System Sciences Discussions 6 (2009), 1347–1383.
98. Scheffran, J., Marmer, E., Sow, P., Migration as a contribution to resilience and innovation in climate adaptation: social networks and co-development in Northwest Africa original research article. Applied Geography 33 (2012), 119–127.
99. Schubert, S., Koster, R., Hoerling, M., Seager, R., Lettenmaier, D., Kumar, A., et al. Predicting drought on seasonal-to-decadal time scales. Bulletin of the American Meteorological Society 88 (2007), 1625–1630.
100. Schuol, J., Abbaspour, K.C., Yang, H., Srinivasan, R., Zehnder, A.J.B., Modeling blue and green water availability in Africa. Water Resources Research, 44, 2008, W07406.
101. Scrimshaw, N.S., The phenomenon of famine. Annual Review of Nutrition 7 (1987), 1–21.
102. Seaquist, J.W., Hickler, T., Eklundh, L., Ardö J., Heumann, B., Disentangling the effects of climate and people on sahel vegetation dynamics. Biogeosciences 6 (2009), 469–477.
103. Shiau, J.T., Modarres, R., Copula-based drought severity-duration-frequency analysis in Iran. Meteorological Applications 16 (2009), 481–489.
104. Sinclair, D.S., Pegram, C.G.S., A comparison of ASCAT and modeled soil moisture over South Africa, using TOPKAPI in land surface mode. Hydrology and Earth System Sciences 14 (2010), 613–626.
105. Sivakumar, M.V.K., Motha, R.P., Wilhite, D.A., Wood, D.A., Agricultural drought indices. Proceedings of an expert meeting, 2–4 June 2010, Murcia, Spain, 2010, World Meteorological Organization, Geneva, 219.
106. Sjöström, M., Ardö J., Eklundh, L., El-Tahir, B.A., El-Khidir, H.A.M., Hellström, M., et al. Evaluation of satellite based indices for gross primary production estimates in a sparse savannah in the Sudan. Biogeosciences 6 (2009), 129–138.
107. Stringer, L.C., Dyer, J.C., Reed, M.S., Dougill, A.J., Twyman, C., Mkwambisi, D., Adaptations to climate change, drought and desertification: local insights to enhance policy in southern Africa. Environmental Science & Policy 12 (2009), 748–765.
108. Svoboda, M., LeComte, D., Hayes, M., Heim, R., Gleason, K., Angel, J., et al. The drought monitor. Bulletin of the American Meteorological Society 83 (2002), 1181–1190.
109. Svoboda, M.D., Hayes, M.J., Wilhite, D.A., Tadesse, T., Recent advances in drought monitoring. Bulletin of the American Meteorological Society, 2004, 5237–5240.
110. Szalai, S., Szinell, C.S., Zoboki, J., Drought monitoring in Hungary. Early warning systems for drought preparedness and drought management, 2000, World Meteorological Organization, Lisbon, 182–199.
111. Tarhule, A., Lamb, P.J., Climate research and seasonal forecasting for West Africans. Bulletin of the American Meteorological Society 84 (2003), 1741–1759.
112. Thomson, M.C., Doblas-Reyes, F.J., Mason, S.J., Hagedorn, R., Connor, S.J., Phindela, T., et al. Malaria early warnings based on seasonal climate forecasts from multi-model ensembles. Nature 439 (2006), 576–579.
113. Tippett, M.K., Barnston, A.G., Skill of multimodel ENSO probability forecasts. Monthly Weather Review 136 (2008), 3933–3946.
114. Tucker, C.J., Newcomb, W.W., Los, S.O., Prince, S.D., Mean and inter-year variation of growing-season normalized difference vegetation index for the Sahel 1981–1989. International Journal of Remote Sensing 16 (1991), 1133–1135.
115. Tucker, C.J., Vanpraet, C., Boerwinkel, E., Gaton, A., Satellite remote sensing of total dry matter accummulation in winter wheat. Remote Sensing of Environment 11 (1983), 171–189.
116. Twomlow, S., Mugabe, F.T., Mwale, M., Delve, R., Nanja, D., Carberry, P., et al. Building adaptive capacity to cope with increasing vulnerability due to climatic change in Africa – a new approach. Physics and Chemistry of the Earth 33 (2008), 780–787.
117. UN, Trends in sustainable development. Agriculture, rural development, land, desertification and drought. 2008, Department of Economic and Social Affairs, United Nations. New York.
118. Vörösmarty, C.J., Douglas, E.M., Green, P.A., Revenga, C., Geospatial indicators of emerging water stress: an application to Africa. Ambio 34 (2005), 230–236.
119. Vicente-Serrano, S.M., Evaluating the impact of drought using remote sensing in A Mediterranean, semi-arid region. Natural Hazards 40 (2007), 173–208.
120. Vicente-Serrano, S.M., Beguería, S., Estimating extreme dry-spell risk in the middle Ebro valley (Northeastern Spain): a comparative analysis of partial duration series with a General Pareto distribution and Annual maxima series with a Gumbel distribution. International Journal of Climatology 23 (2003), 1103–1118.
121. Vicente-Serrano, S.M., Beguería, S., López-Moreno, J.I., A multi-scalar drought index sensitive to global warming: the Standardized Precipitation Evapotranspiration Index – SPEI. Journal of Climate 23 (2010), 1696–1718.
122. Vicente-Serrano, S.M., Beguería, S., López-Moreno, J.I., Comment on “Characteristics and trends in various forms of the Palmer drought severity index (PDSI) during 1900–2008” by A. Dai. Journal of Geophysical Research-Atmosphere, 116, 2011, D19112, 10.1029/2011JD016410.
123. Vicente-Serrano, S.M., Beguería, S., López-Moreno, J.I., Angulo, M., El Kenawy, A., A new global 0.5° gridded dataset (1901–2006) of a multiscalar drought index: comparison with current drought index datasets based on the Palmer Drought Severity Index. Journal of Hydrometeorology 11 (2010), 1033–1043.
124. Vicente-Serrano, S.M., Cuadrat, J.M., Romo, A., Early prediction of crop productions using drought indices at different time scales and remote sensing data: application in the Ebro valley (North-east Spain). International Journal of Remote Sensing 27 (2006), 511–518.
125. Vicente-Serrano, S.M., González-Hidalgo, J.C., de Luis, M., Raventós, J., Spatial and temporal patterns of droughts in the Mediterranean area: the Valencia region (East-Spain). Climate Research 26 (2004), 5–15.
126. Vicente-Serrano, S.M., López-Moreno, J.I., Hydrological response to different time scales of climatological drought: an evaluation of the standardized precipitation index in a mountainous Mediterranean basin. Hydrology and Earth System Sciences 9 (2005), 523–533.
127. Vicente-Serrano, S.M., López-Moreno, J.I., Beguería, S., Lorenzo-Lacruz, J., Azorin-Molina, C., Morán-Tejeda, E., Accurate computation of a streamflow drought index. Journal of Hydrologic Engineering, 2011, 10.1061/(ASCE)HE.1943-5584.0000433.
128. Vicente-Serrano, S.M., López-Moreno, J.I., Gimeno, L., Nieto, R., Morán-Tejeda, E., Lorenzo-Lacruz, J., et al. A multi-scalar global evaluation of the impact of ENSO on droughts. Journal of Geophysical Research-Atmosphere, 116, 2011, D20109, 10.1029/2011JD016039.
129. Vidal, J.-P., Martin, E., Franchistéguy, L., Habets, F., Soubeyroux, J.-M., Blanchard, M., et al. Multilevel and multiscale drought reanalysis over France with the Safran-Isba-Modcou hydrometeorological suite. Hydrology and Earth System Sciences 14 (2010), 459–478.
130. Webster, P.J., Yang, S., Monsoon and ENSO: selectively interactive systems. Quarterly Journal of the Royal Meteorological Society 118 (1992), 877–926.
131. Wilhite, D.A., Glantz, M.H., Understanding the drought phenomenon: the role of definitions. Water International 10 (1985), 111–120.
132. Wilhite, D.A., Drought assessment, management and planning: Theory and case studies. 1993, Kluwer, Boston.
133. Wilhite, D.A., A methodology for drought preparedness. Natural Hazards 13 (1996), 229–252.
134. Wilhite, D.A., Combating drought through preparedness. Natural Resources Forum 26 (2002), 275–285.
135. Wilhite, D.A., Svoboda, M.D., Drought early warning systems in the context of drought preparedness and mitigation. Early warning systems for drought preparedness and drought management, 2000, World Meteorological Organization, Lisboa, 1–21.
136. Wilhite, D.A., Svoboda, M.D., Hayes, M.J., Understanding the complex impacts of drought: a key to enhancing drought mitigation and preparedness. Water Resources Management 21:5 (2007), 763–774.
137. World Bank, Natural disasters hotspots: A global risk analysis. Disaster Risk Management Series, n° 5, 2005, The World Bank.
138. Zhao, M., Heinsch, F.A., Nemani, R.R., Running, S.W., Improvements of the modis terrestrial gross and net primary production global data set. Remote Sensing of Environment 95 (2005), 164–176.
139. Zhao, M., Running, S.W., Drought-induced reduction in global terrestrial net primary production from 2000 through 2009. Science 329 (2010), 940–943.