| DOI | 10.5067/UCLRS-GREV2 |
| Short Name | PRESWOT_HYDRO_L2_GREALM_LAKE_HEIGHT_V2 |
| Description | The Global Lake/Reservoir Surface Inland Water Height Time Series is derived from the G-REALM10 lake level product https://ipad.fas.usda.gov/cropexplorer/global_reservoir/ The purpose of this dataset is to provide surface water dynamics for several hundred lakes and reservoirs across the globe. These time series potentially span a 25 year time period, from late 1992 to 2017, satisfying the project goal of ESDR creation with a suitable level of quality that supports long-term trend analysis and global water dynamics models. Water level variation is also a key component required for the determination of surface water storages and fluxes. This product is readily accessible and is of direct use to both water managers and the scientific community worldwide, and allows for improved assessment and modeling of the human impact on the global water cycle. 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. |
| Version | 2 |
| Dataset Type | ACTIVE |
| Measurement | TERRESTRIAL HYDROSPHERE > SURFACE WATER > LAKES |
| Processing Level | 2 |
| Coverage | Region: GLOBAL North Bounding Coordinate: 66 degrees South Bounding Coordinate: -66 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 1992-Sep-25 to 2019-Dec-23 Granule Time Span: 1992-Sep-25 to 2019-Dec-23 |
| Resolution | Spatial Resolution: |
| Swath Width | 5.1 km |
| Platform/Sensor | OSTM/JASON-2 / Platform Name: Ocean Surface Topography Mission/Jason-2 (OSTM/JASON-2) Orbit Period: 112.43 minutes Inclination Angle: 66.04 degrees POSEIDON-3 SENSOR Name: OSTM/Jason-2 RADAR alitmieter (POSEIDON-3) Swath Width: 5.1 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. |
| Project | Making Earth Science Data Records for Use in Research Environments (MEaSUREs) |
| Data Provider | Publisher: NASA/JPL/SWOT Creator: Birkett, Charon; Ricko, Martina; Yang, Xu Release Place: NASA/JPL/PODAAC Release Date: 2019-Nov-15 Resource: https://podaac-tools.jpl.nasa.gov/drive/files/allData/preswot_hydrology/L2/lakes_reservoirs/docs/MEaSUReS_L2-handbook_Nov8.pdf |
| Keyword(s) | lake, reservoir, area, hydrology, pre-swot, inland, water, water height, ucla, swot |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| Direct Access | |
| PO.DAAC DRIVE | https://podaac-tools.jpl.nasa.gov/drive/files/allData/preswot_hydrology/L2/lakes_reservoirs/height PO.DAAC Drive |
| OPENDAP DATA | https://podaac-opendap.jpl.nasa.gov/opendap/allData/preswot_hydrology/L2/lakes_reservoirs/height/ The OPeNDAP base directory location for the collection. |
| Format (Compression) | NETCDF |
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| Citation | Birkett, Charon; Ricko, Martina; Yang, Xu. 2019. PRESWOT_HYDRO_L2_GREALM_LAKE_HEIGHT_V2. Ver. 2. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/UCLRS-GREV2
For more information see Data Citations and Acknowledgments.
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| Version | Dataset | Version Date | Status | |
|---|---|---|---|---|
| 2 | Pre SWOT Hydrology Global Lake/Reservoir Surface Inland Water Height GREALM V.2 | 2019-08-19 | ACTIVE | 1566240107937 |
| 1 | Pre SWOT Hydrology Global Lake/Reservoir Water Height GREALM | 2017-05-19 | RETIRED | 1495176776645 |