By Seelye Martin
Absolutely 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 version of this renowned textbook introduces scholars to how distant sensing works, the best way to comprehend observations from Earth-observing structures, and the observations' significance to actual and organic oceanography. It offers complete reasons of radiative move, ocean floor houses, satellite tv for pc orbits, tools and techniques, noticeable distant sensing of biogeochemical houses, 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 net information the place information might be acquired, and readers can receive on-line instruments for operating with the information - permitting hands-on engagement with real-world observations. this is often an excellent textbook for graduate and complicated undergraduate scholars in oceanography, distant sensing and environmental technology, and a realistic source for researchers and pros operating with oceanographic satellite tv for pc information.
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Additional info for An Introduction to Ocean Remote Sensing
002 –60 –135 –90 –90 0 45 90 135 180 Fig. 5. Graphic of the South Atlantic Anomaly (SAA) showing the contours of the relative probability for space systems to suffer single anomalous events caused by high-energy protons at an altitude of 1000 km. See the text for further description. ) the geosynchronous belt. For both sets of orbits, to minimize the generation of debris by break-up of the satellites, all fuel tanks should be depressurized and any energy contained in momentum wheels should be depleted.
2002). 25 km. 25-km resolution. The advantage of this scanning technique is that, if this multiple-detector system were replaced by a single-sensor whiskbroom, the mirror would have to spin ten times as fast to obtain the same spatial resolution, reducing the dwell time and increasing the noise, both by a factor of ten. , 2002). VIIRS on Suomi-NPP is the replacement for AVHRR and MODIS, and has a similar set of along-track sensors to MODIS. , 2001). 2; the others are discussed below. Compared with MODIS, the smaller number of VIIRS bands reduces the VIIRS complexity, cost and weight relative to MODIS (VIIRS, 2012a).
For a nadir view, the FOV is a circle; because of the Earth’s curvature at off-nadir view angles, the FOV is an ellipse. 2 Cross-track or whiskbroom scanners The next sub-sections describe three scanning techniques that are primarily used in the visible/infrared and in low Earth orbits, while Chapter 8 describes the analogous microwave scanners. First, whiskbroom scanners construct images from the combination of the satellite motion along its trajectory and the rotation of a telescope–mirror combination relative to the spacecraft.