What is Pansharpened imagery?

Pansharpening is a process of merging high-resolution panchromatic and lower resolution multispectral imagery to create a single high-resolution color image. Google Maps and nearly every map creating company use this technique to increase image quality.

How do I view imagery in Landsat?

The USGS Global Visualization Viewer GLOVIS site at: http://glovis.usgs.gov/ has Landsat data, as well as ASTER and some MODIS satellite images. Select the appropriate image collection e.g. Landsat Archive | Landsat 4 – 5 TM and then navigate to the region you are interested in.

What is Pan in remote sensing?

As you yourself said, PAN stands for panchromatic image. Landsat 8 OLI (Optical Land Imager) is one sensor which provide free of cost MS and PAN images.

What is the full form of Liss in remote sensing?

LISS (Linear Imaging Self Scanning Sensor): Multispectral 4-channel sensors.

How do I access Landsat data?

All Landsat data are available from USGS for free.

1. LandsatLook Viewer.
2. USGS GloVis: The Global Visualization Viewer.
3. USGS Earth Explorer.
4. Free Web Enabled Landsat Data (WELD)
5. Free Orthorectified Landsat Data.

What is Landsat panchromatic image?

Panchromatic And Pansharpened Satellite Imagery. A panchromatic image uses a single band that combines Red, Green, and Blue bands, allowing for a greater spatial resolution. The resulting image does not contain any wavelength-specific information.

What is ETM in Landsat?

The Landsat Enhanced Thematic Mapper Plus (ETM+) is a sensor carried onboard the Landsat 7 satellite and has acquired images of the Earth nearly continuously since July 1999, with a 16-day repeat cycle.

How Landsat data is different from Liss data?

LISS IV images have a very fine spatial resolution at 5.8 m and therefore are very useful for digital image interpretation. Landsat images have high temporal resolution at 16-day revisit time period and therefore could be used in instances where LISS IV images were not available.

When did Landsat 7 stop working?

Landsat 7 Scan Line Corrector (SLC) Failure On May 31, 2003, the Scan Line Corrector (SLC), which compensates for the forward motion of the satellite, failed. Subsequent efforts to recover the SLC were not successful, and the failure is permanent.