Download An Introduction to Ocean Remote Sensing by Seelye Martin PDF

By Seelye Martin

Totally up to date, with major new insurance of advances in satellite tv for pc oceanography and effects from new satellite tv for pc missions, the second one variation of this renowned textbook introduces scholars to how distant sensing works, how you can comprehend observations from Earth-observing platforms, and the observations' significance to actual and organic oceanography. It offers complete causes of radiative move, ocean floor homes, satellite tv for pc orbits, tools and techniques, noticeable distant sensing of biogeochemical homes, infrared and microwave retrieval of sea floor temperature, sea floor salinity retrieval, passive microwave measurements, scatterometer wind retrieval, altimetry and SAR. additionally incorporated are descriptions of the web information the place info might be bought, and readers can receive on-line instruments for operating with the knowledge - permitting hands-on engagement with real-world observations. this can be a fantastic textbook for graduate and complex undergraduate scholars in oceanography, distant sensing and environmental technology, and a realistic source for researchers and execs operating with oceanographic satellite tv for pc information.

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Each of these websites can be accessed through the Goddard Earth Sciences, Data and Information Services Center (GES DISC), which provides a gateway to earth science data (NASA, 2013a). The centers provide an archive for data, as well as processing tools, and, for the GES DISC, a web-based application called Geospatial Interactive Online Visualization ANd aNalysis Infrastructure (GIOVANNI, or more commonly Giovanni), which is a way to access, analyze and visualize remote sensing data without having to download the data (Giovanni, 2013).

Unlike shipboard measurements of quantities such as SST or wind speed, which are direct measurements made at a point by a thermometer or anemometer, remote sensing measurements of such quantities cover broad areas and are indirect, in that the geophysical quantity of interest is inferred from the properties of the reflected or emitted radiation. The sensors can range from a radiometer mounted on a ship, oil platform or aircraft to a multispectral satellite imager. The following briefly describes the concepts behind remote sensing and the various observing bands.

6 Imaging techniques Satellites use several scanning methods to generate images. 4 describes, the geosynchronous satellites use spin-scan or fixed-orientation step-scanners to acquire images. For the Sun-synchronous and other low Earth orbits, in the visible/infrared satellites use different but related scanning techniques to generate images. As Chapters 8, 10 and 14 show, different scanning methods are used by passive and active microwave instruments. 1 describes the geometry used for a sensor viewing the Earth’s surface, then show for a simple telescope how the surface field-of-view changes with view angle.

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