| タイトル | Ongoing Development of NASA's Global Land Data Assimilation System |
| 著者（英） | Zaitchik, Ben; Kato, Hiroko; Rodell, Matthew |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2008-05-27 |
| 言語 | eng |
| 内容記述 | NASA's Global Land Data Assimilation System (GLDAS) produces global fields of land surface states (e.g., soil moisture and temperature) and fluxes (e.g., latent heat flux and runoff) by driving offline land surface models with observation-based inputs, using the Land Information System (LIS) software. Since production began in 2001, GLDAS has supported more than 100 scientific investigations and applications. Some examples are GEWEX and NASA Energy and Water Cycle Study (NEWS) global water and energy budget analyses, interpretations of hydrologic data derived from the Gravity Recovery and Climate Experiment (GRACE) satellite mission, and forecast model initiation studies at NOAA and NASA. At the same time, the GLDAS team has continued improve results through the development of new modeling and data assimilation techniques. Here we describe several recent and ongoing innovations. These include global implementation of a runoff routing procedure, GRACE data assimilation, advanced snow cover assimilation, and irrigation modeling. |
| NASA分類 | Earth Resources and Remote Sensing |
| 権利 | No Copyright |
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