Developing Data Services to Provide Data Quality Information for Global Satellite-Based Precipitation Products

Liu, Z ; Shie, C-L, ; Meyer, D

关键词: ALGORITHMS;    DATA ACQUISITION;    DATA PROCESSING;    EARTH SCIENCES;    ERROR ANALYSIS;    INFORMATION SYSTEMS;    MEASURING INSTRUMENTS;    PRECIPITATION (METEOROLOGY);    PRECIPITATION MEASUREMENT;    PRODUCT DEVELOPMENT;    REMOTE SENSING;    TRMM SATELLITE;    RANDOM ERRORS;    SYSTEMS ENGINEERING;   

RP-ID  :  GSFC-E-DAA-TN62899

学科分类：地球科学(综合)

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Global satellite-based precipitation products have been widely used in research and applications around the world. Compared to ground-based observations, satellite-based measurements provide data on a global scale, especially in remote continents and over oceans. The NASA Goddard Earth Sciences (GES) Data and Information Services Center (DISC) is home to NASA global precipitation product archives including the Tropical Rainfall Measuring Mission (TRMM), the Global Precipitation Measurement (GPM), as well as other global and regional precipitation products. Precipitation is one of the top downloaded and accessed parameters in the GES DISC data archive. Meanwhile, users want to easily locate and obtain data quality information at regional and global scales to better understand how precipitation products perform and how reliable they are. As a data service provider, it is necessary to provide easy access to data quality information. However, such information normally is not available, and when it is available, it is not in one place and difficult to locate. In this presentation, we will present such challenges and activities at the GES DISC to address precipitation data (other datasets as well) quality issues.