Pre SWOT Hydrology GRRATS Virtual Station River Heights Version 2

10.5067/PSGRA-SA2V2

PRESWOT_HYDRO_GRRATS_L2_VIRTUAL_STATION_HEIGHTS_V2

The Global River Radar Altimeter Time Series (GRRATS) are simulated river gauge data that are derived from ERS-1, ERS-2, TOPEX/Poseidon OSTM/Jason-2, Jason-3 and Envisat altimetric measurements. The purpose of these heights are to provide satellite altimetric river height data in a form that is more recognizable to the observational community and as a way to get users use to using satellite data for river hydrology. These pre SWOT data are derived from satellites to provide hydrological measurements. The Surface Water and Ocean Topography (SWOT) mission will have hydrology as one of its objectives. This dataset does not have the same variables as SWOT, but does provide hydrological measurements with typical quality flagging typical of satellite data. Not only does it provide science information, it can also assist hydrological users new to satellite data with the satellite data formats and variables before SWOT launches.If you are looking for version 1 it can be found at https://podaac.jpl.nasa.gov/dataset/PRESWOT_HYDRO_GRRATS_L2_VIRTUAL_STATION_HEIGHTS_V1 however this version should be used with caution. Version 2, this page, is the most recent version with the most accurate algorithms used for producing river heights.

2

TERRESTRIAL HYDROSPHERE › SURFACE WATER › SURFACE WATER FEATURES › RIVERS

2

April 6, 1992 to April 20, 2018

-

ENVISAT/RA-2, JASON-1/POSEIDON-2, ERS-1/ERS-1 ALTIMETER, ERS-2/ERS-2 Altimeter, OSTM/JASON-2/POSEIDON-3, JASON-3/POSEIDON-3B

Making Earth Science Data Records for Use in Research Environments (MEaSUREs)

PO.DAAC