Developments in Remote Sensing Techniques for Hydrological Studies
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...
متن کاملRemote sensing applications in hydrological modelling
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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In the recent past, airborne Synthetic Aperture Radar (SAR) remote sensing has witnessed several principal and technical improvements. In particular, spatial resolution has been increased significantly, polarimetric SAR, polarimetric interferometric SAR, and tomographic SAR were introduced, and repeat-pass interferometric SAR was developed for airborne SAR sensors. These advances have made poss...
متن کاملRemote Sensing Techniques
Remote sensing is the observation and measurement of objects from a distance, i.e. instruments or recorders are not in direct contact with objects under investigation. Remote sensing depends upon measuring some kind of energy that is emitted, transmitted, or reflected from an object in order to determine certain physical properties of the object. One of the most common types of remote sensing i...
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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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ژورنال
عنوان ژورنال: Proceedings of the Indian National Science Academy
سال: 2016
ISSN: 0370-0046
DOI: 10.16943/ptinsa/2016/48484