Satellite based lake bed elevation model of Lake Urmia using time series of Landsat imagery
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| Autori principali: | , , , , |
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2021
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| _version_ | 1867170111465455616 |
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| author | Schröder, Tanja Hassanzadeh, Elmira Darehshouri, Sahand Tajrishy, Massoud Schulz, Stephan |
| author_facet | Schröder, Tanja Hassanzadeh, Elmira Darehshouri, Sahand Tajrishy, Massoud Schulz, Stephan |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Lake bed elevation model of Lake Urmia. In the course of model generation, a time series of the extent of the lake surface was derived from 129 satellite images with different acquisition dates based on the Landsat sensors Thematic Mapper (TM), Enhanced Thematic Mapper Plus (ETM+), and Operational Land Imager (OLI). Due to the rapid shrinking of the lake during the last two decades, lake surface areas ranging from 890 km² to 6125 km² could be covered. The water edge of the various lake extents was then linked to the observed water level on the day of the satellite image acquisition. The resulting contour lines, covering water levels between 1270.04 m and 1278.42 m a.s.l. and thus representing the lakebed morphology in its shallow parts, were merged with existing data (deeper parts) and interpolated to generate a lake bed elevation model with a resolution of 30 × 30 m. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_938382 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Satellite based lake bed elevation model of Lake Urmia using time series of Landsat imagery Schröder, Tanja Hassanzadeh, Elmira Darehshouri, Sahand Tajrishy, Massoud Schulz, Stephan Bathymetry; Binary Object; File content; GIS; Horizontal datum; Lake_Urmia_bathymetry; Lake Urmia; Latitude, northbound; Latitude, southbound; Longitude, eastbound; Longitude, westbound; MNDWI; NDWI; Raster cell size; remote sensing; Satellite derived bathymetry; SDB; Vertical datum Lake bed elevation model of Lake Urmia. In the course of model generation, a time series of the extent of the lake surface was derived from 129 satellite images with different acquisition dates based on the Landsat sensors Thematic Mapper (TM), Enhanced Thematic Mapper Plus (ETM+), and Operational Land Imager (OLI). Due to the rapid shrinking of the lake during the last two decades, lake surface areas ranging from 890 km² to 6125 km² could be covered. The water edge of the various lake extents was then linked to the observed water level on the day of the satellite image acquisition. The resulting contour lines, covering water levels between 1270.04 m and 1278.42 m a.s.l. and thus representing the lakebed morphology in its shallow parts, were merged with existing data (deeper parts) and interpolated to generate a lake bed elevation model with a resolution of 30 × 30 m. |
| title | Satellite based lake bed elevation model of Lake Urmia using time series of Landsat imagery |
| topic | Bathymetry; Binary Object; File content; GIS; Horizontal datum; Lake_Urmia_bathymetry; Lake Urmia; Latitude, northbound; Latitude, southbound; Longitude, eastbound; Longitude, westbound; MNDWI; NDWI; Raster cell size; remote sensing; Satellite derived bathymetry; SDB; Vertical datum |
| url | https://doi.org/10.1594/PANGAEA.938382 |