LISS-IV
High-resolution three-band passive optical imager flown on Resourcesat missions.
LISS-IV (Linear Imaging Self-Scanning Sensor 4) is a high-resolution three-band passive optical imager developed by ISRO for the Resourcesat series of land observation satellites.[1][2] It provides the finest spatial detail within the Resourcesat imaging complement, suited to applications requiring sub-10 m ground resolution.
The instrument covers Green (555 nm), Red (650 nm), and Near-Infrared (815 nm) bands at 5.8 m spatial resolution and 10-bit radiometric depth.[2][1] LISS-IV operates in two modes: a mono mode in which all three cameras image the same spectral band to produce a 70 km combined swath, and a multispectral mode in which each of the three cameras covers a different band to yield a 23.9 km swath with full three-band coverage.[2][3]
LISS-IV flies on Resourcesat-2 and Resourcesat-2A alongside the medium-resolution LISS-III and the wide-swath AWiFS sensors.[1] Its three-band VIS-NIR spectral range supports vegetation index mapping, high-resolution land use change detection, agricultural monitoring, and multi-date image analysis.[3]
Compositional position
- Vegetation index mappingvia Resourcesat-2
LISS-IV has visible and NIR bands and WMO lists vegetation variables among primary objectives.
- Optical time-series change detection
LISS-IV repeat high-resolution optical land imaging supports change-detection workflows.
- [1]LISS-4 - WMO OSCAR instrument recordagency doc2026-06-15
- [2]RESOURCESAT-2 - ISROagency doc2026-06-15
- [3]Resourcesat-2 mission - eoPortalcommunity2026-06-15