The North Pacific Experiment (NORPEX-98): Targeted Observations for Improved North American Weather Forecasts

Bulletin of the American Meteorological Society

Volumn 80, Issue 7, 1999, Pages 1363-1384

  Langland, Rolf H ^a   Toth, Z ^b   Gelaro, R ^a   Szunyogh, I ^b   Shapiro, M A ^c   Majumdar, S J ^d   Morss, R E ^e   Rohaly, G D ^a   Velden, C ^f   Bond, N ^g   Bishop, C H ^d  

^a NAVAL RESEARCH LABORATORY   (United States)

^b CLIMATE PREDICTION CENTER   (United States)

^c NOAA EARTH SYSTEM RESEARCH LABORATORY   (United States)

^d PENNSYLVANIA STATE UNIVERSITY   (United States)

^e MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

^f UNIVERSITY OF WISCONSIN MADISON   (United States)

^g UNIVERSITY OF WASHINGTON   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000993297     PISSN: 00030007     EISSN: None     Source Type: Journal    
DOI: 10.1175/1520-0477(1999)080<1363:TNPENT>2.0.CO;2     Document Type: Article

References (41)

1. Aberson, S. D., and J. L. Franklin, 1999: Impact on hurricane track and intensity forecasts of GPS dropwindsonde observations from the first-season flights of the NOAA Gulfstream-IV jet aircraft. Bull. Amer Meteor. Soc., 80, 421-427.
2. Barkmeijer, J., 1995: Approximating dominant eigenvalues and eigenvectors of the local forecast error covariance matrix. Tellus, 47A., 495-501.
3. _, M. van Gijzen, and F. Bouttier, 1998: Singular vectors and estimates of the analysis error covariance metric. Quart. J. Roy. Meteor. Soc., 124, 1695-1713.
4. Bergot, T., 1999: Adaptive observations during FASTEX: A Systematic survey of upstream flights. Quart. J. Roy. Meteor. Soc., in press.
5. _, G. Hello, A. Joly, and S. Malardel, 1999: Adaptive observations: A feasibility study. Mon. Wea. Rev., 127, 743-765.
6. Bishop, C., and Z. Toth, 1996: Using ensembles to identify observations likely to improve forecasts. Preprints, 11th Conf. on Numerical Weather Prediction, Norfolk, VA, Amer. Meteor. Soc., 72-74.
7. _, and _, 1999: Ensemble transformation and adaptive observations. J. Atmos. Sci., 56, 1748-1765.
8. Buizza, R., and T. N. Palmer, 1995: The singular vector structure of the atmospheric general circulation. J. Atmos. Sci., 52, 1434-1456.
9. _, T. Petroliagis, T. N. Palmer, J. Barkmeijer, M. Hamrud, A. Hollingsworth, A. Simmons, and N. Wedi, 1998: Impact of model resolution and ensemble size on the performance of an ensemble prediction system. Quart. J. Roy. Meteor. Soc., 124, 1935-1960.
10. Burpee, R. W., J. L. Franklin, S. J. Lord, R. E. Tuleya, and S. D. Aberson, 1996: The impact of omega dropwindsondes on operational hurricane track forecast models. Bull. Amer. Meteor. Soc., 77, 925-933.
11. Emanuel, K., and R. Langland, 1998: FASTEX Adaptive Observations Workshop. Bull. Amer. Meteor. Soc., 79, 1915-1919.
12. Gelaro, R., R. Buizza, T. N. Palmer, and E. Klinker, 1998: Sensitivity analysis of forecast errors and the construction of optimal perturbations using singular vectors. J. Atmos. Sci., 55, 1012-1037.
13. _, R. Langland, G. D. Rohaly, and T. E. Rosmond, 1999: An assessment of the singular vector approach to targeted observing using the FASTEX data set. Quart. J. Roy. Meteor. Soc., in press.
14. Goerss, J. S., C. S. Velden, and J. D. Hawkins, 1998: The impact of multispectral GOES-8 wind information on Atlantic tropical cyclone track forecasts in 1995. Part II: NOGAPS forecasts. Mon. Wea. Rev., 126, 1219-1227.
15. Hock, T. F., and J. L. Franklin, 1999: The NCAR GPS dropwindsonde. Bull. Amer. Meteor. Soc., 80, 407-420.
16. Joly, A., and Coauthors, 1997: The Fronts and Atlantic Storm-Track Experiment (FASTEX): Scientific objectives and experimental design. Bull. Amer. Meteor. Soc., 78, 1917-1940.
17. Kanamitsu, M., and Coauthors, 1991: Recent changes in the global forecast system at NCEP. Wea. Forecasting, 6, 425-435.
18. Langland, R. H., and G. D. Rohaly, 1996: Adjoint-based targeting of observations for FASTEX cyclones. Preprints, Seventh Mesoscale Processes Conf., Reading, United Kingdom, Amer. Meteor. Soc., 369-371.
19. _, R. Gelaro, G. D. Rohaly, and M. A. Shapiro, 1999: Targeted observations in FASTEX: Adjoint-based targeting procedures and data impact experiments in IOPs 17 and 18. Quart. J. Roy. Meteor. Soc., in press.
20. Lord, S. J., 1996: The impact on synoptic-scale forecasts over the United States of dropwindsonde observations taken in the northeast Pacific. Preprints, 11th Conf. on Numerical Weather Prediction, Norfolk, VA, Amer. Meteor. Soc., 70-71.
21. Montani, A., R. Buizza, and A. J. Thorpe, 1996: Singular vector calculations for cases of cyclogenesis in the North Atlantic storm-track. Preprints, Seventh Mesoscale Processes Conf., Reading, United Kingdom, Amer. Meteor. Soc., 391-392.
22. _, A. J. Thorpe, R. Buizza, and P. Unden, 1999: Forecast skill of the ECMWF model using targeted observations during FASTEX. Quart. J. Roy. Meteor. Soc., in press.
23. Nieman, S. J., W. P. Menzel, C. M. Hayden, D. Gray, S. Wanzong, C. S. Velden, and J. Daniels, 1997: Fully automated cloud drift winds in NESDIS operations. Bull. Amer. Meteor. Soc., 78, 1121-1134.
24. Palmer, T. N., 1988: Medium and extended range predictability and stability of the Pacific/North American mode. Quart. J. Roy. Meteor. Soc., 114, 691-713.
25. _, R. Gelaro, J. Barkmeijer, and R. Buizza, 1998: Singular vectors, metrics, and adaptive observations. J. Atmos. Sci., 55, 633-653.
26. Parrish, D. F., J. C. Derber, R. J. Purser, W.-S. Wu, and Z.-X. Pu, 1997: The NCEP global analysis system: Recent improvements and future plans. J. Meteor. Soc. Japan, 75, 359-365.
27. Pu, Z.-X., E. Kalnay, J. C. Derber, and J. Sela, 1997a: Using forecast sensitivity patterns to improve future forecast skill. Quart. J. Roy. Meteor. Soc., 123, 1035-1053.
28. _, _, J. Sela, and I. Szunyogh, 1997b: Sensitivity of forecast error to initial conditions with a quasi-inverse linear method. Mon. Wea. Rev., 125, 2479-2503.
29. _, S. J. Lord, and E. Kalnay, 1998: Forecast sensitivity with dropwindsonde and targeted observations. Tellus, 50A, 391-410.
30. Rabier, F., E. Klinker, P. Courtier, and A. Hollingsworth, 1996: Sensitivity of forecast errors to initial conditions. Quart. J. Roy. Meteor. Soc., 122, 121-150.
31. Ralph, M., and Coauthors, 1999: The California Land-Falling Jets Experiment (CALJET)Objectives and design of a coastal atmosphere ocean observing system deployed during a strong El Niño. Preprints, Third Symp. on Integrated Observing Systems, Dallas, TX, Amer. Meteor. Soc., 78-81.
32. Rosmond, T. E., 1997: A technical description of the NRL Adjoint Modeling System Rep. NRL/MR/7532/97/7230, 62 pp. [Available from Naval Research Laboratory, Monterey, CA 93943-5502].
33. Schlatter, T. W., F. H. Carr, R. H. Langland, R. E. Carbone, N. A. Crook, R. W. Daley, J. C. Derber, and S. L. Mullen, 1999: A five-year plan for research related to the assimilation of meteorological data. U.S. Weather Research Program Workshop on Data Assimilation Rep., 42 pp. [Available from Office of the Lead Scientist, U.S. Weather Research Program, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000.]
34. Snyder, C., 1996: Summary of an informal workshop on adaptive observations and FASTEX. Bull. Amer. Meteor. Soc., 77, 953-964.
35. Szunyogh, I., Z. Toth, K. A. Emanuel, C. Bishop, C. Snyder, R. Morss, J. Woolen, and T. Marchok, 1999a: Ensemble-based targeting experiments during FASTEX: The impact of dropsonde data from the LEAR jet. Quart. J. Roy. Meteor. Soc., in press.
36. _, _, S. Majumdar, R. Morss, C. Bishop, and S. Lord, 1999b: Ensemble-based targeted observations during NORPEX. Preprints, Third Symp. on Integrated Observing Systems, Dallas, TX, Amer. Meteor. Soc., 74-77.
37. Toth, Z., and E. Kalnay, 1997: Ensemble forecasting at NCEP and the breeding method. Mon. Wea. Rev., 125, 3297-3319.
38. _, _, S. Tracton, R. Wobus, and J. Irwin, 1997: A synoptic evaluation of the NCEP ensemble. Wea. Forecasting, 12, 140-153.
39. Velden, C. S., C. M. Hayden, S. J. Nieman, W. P. Menzel, S. Wanzong, and J. S. Goerss, 1997: Upper-tropospheric winds derived from geostationary satellite water vapor observations. Bull. Amer. Meteor. Soc., 78, 173-195.
40. _, T. L. Olander, and S. Wanzong, 1998: The impact of multispectral GOES-8 wind information on Atlantic tropical cyclone track forecasts in 1995. Part I: Dataset methodology, description, and case analysis. Mon. Wea. Rev., 126, 1202-1218.
41. Zhu, Y., Z. Toth, E. Kalnay, and S. Tracton, 1998: Probabilistic quantitative precipitation forecasts based on the NCEP global ensembles. Preprints, 12th Conf. on Numerical Weather Prediction, Phoenix, AZ, Amer. Meteor. Soc., J8-J11.