Remote sensing may provide unprecedented hydrological data
نویسندگان
چکیده
منابع مشابه
Remote sensing in hydrological sciences
Space age, and with it the era of earth observation, is generally considered to have begun more than 50 years ago with the launch of Sputnik-1 on 4 October 1957 (Kramer, 2002). Sputnik’s beeping radio signals did not only serve to demonstrate the technological capabilities of the Soviet Union, they were also used to gather information about the electron density of the ionosphere. In legacy of S...
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The use of physically-based distributed hydrological models demands comprehensive amounts of data both to parameterise and force the model as well as to validate it. Conventionally measured data are mainly restricted to point measurements which are less optimal for use in a spatial distributed context. However, remote sensing can offer such area integrated measures albeit through a more indirec...
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Remote sensing data and information are shown great potential in supplying relevant spatial data and parameters at the appropriate scale for use in distributed hydrological models for water resource applications. In contrast with many conventional data normally represented by point measurements, remote sensing based measurements are spatially averages over the pixels can appropriate for distrib...
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Previous studies have suggested that remotely sensed data should provide major benefits to hydrology and water resources and yet there are few case studies that show practical benefits. One of the reasons for this is the lack of tools to convert remotely sensed data to the type of information useful to water resource systems operators. Hydrological models can play an important role in this tran...
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Extended abstract 1- Introduction The study of the behavior of rivers in the arid and dry areas is one of the most important tasks in the country. Because the area has increased the effects of drought due to the sensitivity of the area and rainfall shortage, it causes changes in the flow and sediment regime, water resources, agriculture, and so on. Since plants react more precisely to t...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 1999
ISSN: 0096-3941
DOI: 10.1029/99eo00112