G52A-02
A New Advanced GRACE Analyis Product - JPLRL05M: Improving Terrestrial Water Storage Estimates
Friday, 18 December 2015: 10:35
2002 (Moscone West)
Michael M Watkins1,2, David N Wiese3, Carmen Boening3, Felix W Landerer3 and Dah-Ning Yuan4, (1)Jet Propulsion Lab, Pasadena, CA, United States, (2)University of Texas at Austin, Center for Space Research, Austin, TX, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (4)Jet Propulsion Laboratory, Pasadena, CA, United States
Abstract:
We have developed a new surface mass solution using spherical cap mascons, designated as JPL RL05M, and now publicly available via the GRACE Tellus site. This solution has a number of characteristics that make it useful for studies of terrestrial water storage, including higher spatial resolution than the (smoothed) harmonic fields available on Tellus, and not requiring the "de-striping" filter widely used on harmonic fields to remove North-South artifacts. In this talk we will discuss the quality of the new products, how to use them, and how they differ from existing harmonic-based products that users may be familiar with. We believe this new product will enable hydrologists to study smaller regions, regions nearer to coastlines, and regions with more North-South orientation than they have been able to with previous generation GRACE products.
