Types of SAR Products
Types of Synthetic Aperture Radar (SAR) Products
New users may prefer to start with imagery and products derived from imagery. These products are given processing-level numbers, such as L1 and L2. Raw, unprocessed data, is L0 or L1.0.
|Type||Level||Presentation||Tools to View||Tool Source|
L0, L1.0, Raw
|User must process||Unfocused||n/a|
Single look complex
|L1.1, SLC||Focused but much speckle|
Contains phase information.
Ground Range Detected (GRD)
ASF, no cost to users
ESA, no cost to users
Note: Dark RTC images may require conversion from gamma0 to sigma0 in GIS for best viewing. Instructions.
|ArcMap - commercial, QGIS - free|
|Product derived from images||L2 - OCN||Usually a viewable image or plot||Usually none||n/a|
*Radiometrically terrain corrected (RTC) is corrected L1.5 imagery.