Contents
What is surface reflectance remote sensing?
Surface reflectance (ρ) is defined as the fraction of incoming solar radiation that is reflected from Earth’s surface for specific incident or viewing cases (directional, conical, and hemispherical cases). From: Comprehensive Remote Sensing, 2018.
What is the range of DN value?
Each pixel also has a numerical value, called a digital number (DN), that records the intensity of electromagnetic energy measured for the ground resolution cell represented by that pixel. Digital numbers range from zero to some higher number on a gray scale.
What is the reflectance code for Landsat 8?
The Landsat 8 Collection 1 Land Surface Reflectance Code (LaSRC) Product Guide contains details about the LaSRC algorithm and the Landsat 8 Surface Reflectance data products created from it.
When did Landsat 8 take the image of Los Angeles?
Left: Landsat 8 Collection 1 Top of Atmosphere reflectance image (bands 4,3,2) and Right: Landsat 8 Collection 1 atmospherically corrected surface reflectance image for an area over Los Angeles, California, path 41 row 36 acquired on August 31, 2018.
Is the Landsat spectral indices under the same constraints as the source?
Landsat spectral indices are under the same constraints as the source Landsat Surface Reflectance products. Visit the Land Surface Reflectance Code (LaSRC) Product Guide and the Landsat 4-7 Surface Reflectance Code (LEDAPS) Product Guide to see the caveats and constraints of Landsat Surface Reflectance products.
Where can I find scene based Landsat data?
Scene-based Surface Reflectance data (on-demand): Processing requests for scene-based Landsat Surface Reflectance data can be submitted from EarthExplorer. The data are located under the Landsat category, Landsat Collection 1 Level-2 (On-Demand)subcategory, with Landsat 8, Landsat 7, and Landsat 4-5 TM listed as individual datasets.