data assimilation

Data Assimilation image

Testing and Evaluation of State-of-the-Art Data Assimilation Techniques

The DTC currently focuses its testing and evaluation of state-of-the-art data assimilation techniques on their application to limited area mesoscale models. Testing and evaluation by our data assimilation team currently focuses coupling data assimilation systems with the Weather Research and Forecasting (WRF) model for both mid-latitude and tropical cyclone applications. New data assimilation techniques considered for testing and evaluation can originate from NOAA/NCEP or developers located in research laboratories and universities.

The ultimate goal of the DTC's data assimilation systems testing and evaluation activities is to evaluate the performance of a new data assimilation technique or data type for extended retrospective periods. Such extended period testing provides a robust data set for objective forecast verification, including the assessment of statistical significance. And yet, important information can also be gathered by considering case studies. Hence, some data assimilation system testing and evaluation activities may include a hierarchy of tests ranging from case studies to extended periods.

Team

Primary Contact

Scientists

Software Engineers

Publications

Shao, H., M. Hu, C. Zhou, K. Newman, M. K. Biswas, D. Stark, L. Bernardet, M. Tong, and J. Derber. DTC GSI Data Assimilation System Community Support and Testing Activities: 2013 Annual Update. 14th WRF Users Workshop, Boulder, CO, June 24-28

Newman, K., M. Hu, and H. Shao: GSI Background Error Sensitivity for AFWA Pre-operational Implementation Testing. 14th WRF Users Workshop, Boulder, CO, June 24-28 

Zhou, C., H. Shao, L. Bernardet: Testing and Evaluation of the GSI-Hybrid Data Assimilation and its Applications for Hurricane Forecasts. 14th WRF Users Workshop, Boulder, CO, June 24-28

Shao, H., C. Zhou, M. K. Biswas, L. Bernardet, B. Etherton, M. Tong, J. Derber, and J. Whitaker, 2013. Testing and evaluation of GSI Hybrid Data Assimilation for basin-scale HWRF. NOAA Testbeds Workshop, College Park, MD, 2013, April 2-3

Newman, K., M. Hu, and H. Shao, 2013: Configuration Testing of GSI within an Operational Environment. 93rd AMS Annual Meeting, January 6-10, 2013

Shao, H., M. Hu, K. Newman, C. Zhou, and D. Stark, 2013: Update on Data Assimilation System Testing and Community Support. 93rd AMS Annual Meeting, January 6-10, 2013

Zhou, C., H. Shao, L. R. Bernardet, M. Biswas and B. J. Etherton: Testing and evaluation of GSI-Hybrid 3DVAR for basin scale HWRF. 93rd AMS Annual Meeting, January 6-10, 2013

Shao, H., M. Hu, D. Stark, K. Newman, C. Zhou, X. Y. Huang, John Derber, and Michael Lueken, DTC Data Assimilation System Community Support and Testing Activities: Variational, Ensemble and Hybrid. 13th WRF Users Workshop, Boulder, CO, June 25-29, 2012

Zhou, C., H. Shao, M. Hu, L. Bernardet, X.-Y. Huang and B. Etherton: Improved Hurricane Forecast through GSI-Hybrid data assimilation: A case study. 13th WRF Users Workshop, Boulder, CO, June 25-29, 2012

Newman, K., Z. Liu, C. Schwartz, H. Shao, X.-Y. Huang: Impact of MHS Radiance Assimilation for Regional EnKF. 13th WRF Users Workshop, Boulder, CO, June 25-29, 2012

Newman, K., Z. Liu, C. Schwartz, H. Shao, X.-Y. Huang: Testing and Evaluation of Regional EnKF Radiance Data Assimilation: Impact of MHS Assimilation. Joint 30th CMOS Conference - AMS 21st NWP/25th WAF Conference

Zhou, C., H. Shao and X.-Y. Huang: Testing and Evaluation of the GSI-Hybrid data assimilation for the Hurricane Forecasts. 30th AMS Conference on Hurricanes and Tropical Meteorology, Ponte Vedra, FL, April 2012

Huang X-Y, Hui Shao, Ming Hu, Kathryn Newman, Chunhua Zhou, and Don Stark: DTC Data Assimilation System Community Support and Tests: Status Report. 92nd AMS Annual Meeting, January 21-27, 2012

Zhou, C., K. M. Newman, H. Shao, X. Y. Huang and M. Hu: Testing and Evaluation of Radiance Data Assimilation Using the WRF-GSI System. 12th Annual WRF Users Workshop, Boulder, CO, 2011

Newman, K., C. Zhou, H. Shao, X.-Y. Huang: DTC Testing and Evaluation of Surface Data Impacts on the GSI Data Assimilation System. 12th Annual WRF Users Workshop, Boulder, CO, 2011

Newman, K., C. Zhou, H. Shao, X.-Y. Huang, M. Hu: Testing and Evaluation of the GSI Data Assimilation System. 91st AMS Annual Meeting, 2011