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Remote sensing

Spatial Filters in Remote Sensing

Spatial Filters in Remote Sensing

This three-part module examines the concept and use of spatial filters in remote sensing. Part 1 introduces the idea of spatial frequency, the reasons for using filters, and the difference between high and low pass filters. Part 2 explains how filters work, as well as, the effects of simple high and low pass filters on an image. Part 3 provides ...

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Solar Radiance and Reflectance for Landsat 5 and 7

Solar Radiance and Reflectance for Landsat 5 and 7

This Concept Module introduces why and how to correct Landsat imagery to account for difference in Solar Irradiance (the Sun’s energy) due to the changes in the Earth and Sun’s geometry – distance and tilt. This Concept Module is Part 2 of a two part iGETT Concept Module. It includes the equations needed to correct Landsat imagery to account for ...

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Envisat ASAR image analysis for oil spill monitoring of Prestige oil tanker desaster

Envisat ASAR image analysis for oil spill monitoring of Prestige oil tanker desaster

See how to process a Synthetic Aperture Radar SAR to usable GIS-ready information, using the open source Software Sentinel Application Platform (SNAP). Get more videos and more detailed Information on my website http://ift.tt/1tge7E3 Download the data here:  http://ift.tt/1YhCMnT

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Rapid Assessment of Hazard Impacts-NASA SEDAC Hazard Mapper

Rapid Assessment of Hazard Impacts-NASA SEDAC Hazard Mapper

With the new NASA SEDAC Hazard Mapper, a rapid assessment of potential hazard impacts is possible! Estimate population in proximity to a hazardous event, identify nearby facilities, including major dams and nuclear power plants and settlements. When a major hazard event occurs, it is often difficult to ascertain quickly what the degree of population exposure might be, and what major ...

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A remote-sensing based monitoring framework for permafrost landscape dynamics

A remote-sensing based monitoring framework for permafrost landscape dynamics

By Ingmar Nitze, AWI Potsdam FrostByte prepared for the XI. International Conference On Permafrost, June 20-24, 2016, Potsdam, Germany In the FrostByte we present an overview of a framework for the monitoring of permafrost landscape dynamics with remote sensing time-series.

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Thermal Infrared Remote Sensing

Thermal Infrared Remote Sensing

This Concept Module provides an overview of the basic concepts of remote sensing in the thermal infrared portion of the electromagnetic spectrum. Questions and answers for Thermal Infrared Remote Sensing Concept Modules

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Co-registration of Historic Imagery

Co-registration of Historic Imagery

In this session you will co-register a 1978 color infrared aerial photograph to an image from last summer that is in the UTM coordinate system. The georeferencing in Arcmap is appropriate ideally for aerial photographs with no relief displacement or tilt.

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