Near Real Time Global Lake and River Monitoring Using the Envisat Ra-2
نویسندگان
چکیده
Over the past 18 months, a pilot system has been developed which has generated global lake and river level measurements from the Envisat RA-2. These data are produced within 3-5 days of measurement, using retracked Level 1B altimeter echoes merged with data from the IGDR to obtain both orbit and atmospheric/instrument corrections. A global version of this system has now been in operation for over 6 months. This paper presents an analysis of the results from this unique dataset, and demonstrates the current capabilities and future potential of radar altimeter measurements to monitor changing inland water resources in near real time.
منابع مشابه
Global Inland Water Monitoring from Satellite Radar Altimetry – a Glimpse into the Future
The capability of satellite radar altimeters to monitor the height changes of major lakes is well established. However, river systems present far more challenging targets. By retracking altimeter echoes using an expert system approach, river heights can be successfully monitored; this capability is bounded by the along-track sampling rate. However, a glimpse into the potential of future altimet...
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