WMO OSCAR | Details for Instrument LISS-4

No JavaScript detected
Usage of this Website will be severly limited without JavaScript. Please enable JavaScript in your Browser.

Instrument: LISS-4

Instrument details

Acronym	LISS-4
Full name	Linear Imaging Self-Scanning Sensor - 4
Purpose	Very-high-resolution land and vegetation observation
Short description	3-channel VIS/NIR radiometer, one camera each channel [see detailed characteristic below]
Background	Complementary to LISS-3 on ResourceSat-1 and ResourceSat-2
Scanning Technique	Pushbroom, 4096 pixel/line per camera; swath 23.9 km if the 3 cameras are used each for 1 different channel (thus multi-spectral), or 70 km if all cameras are used for viewing parallel strips in the same channel (thus panchromatic). Cross-track pointing capability ± 26° for stereoscopy in between orbits
Resolution	5.8 m
Coverage / Cycle	Global coverage in 24 days, in daylight. 5 days for a target area by using cross-track pointing
Mass	133 kg	Power	129 W	Data Rate	294 Mbps

Providing Agency	ISRO
Instrument Maturity	Flown on operational programme
Utilization Period:	2004 to ≥2021
Last update:	2021-06-16

Detailed characteristics

Central wavelength	Spectral interval	SNR @ specified input spectral radiance
0.555 µm	0.52 - 0.59 µm	335 @ 612 W m^-2 sr^-1 µm^-1
0.650 µm	0.62 - 0.68 µm	360 @ 496 W m^-2 sr^-1 µm^-1
0.815 µm	0.77 - 0.86 µm	248 @ 391 W m^-2 sr^-1 µm^-1

Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Satellite for Earth Resources (ISRO)
- ResourceSat-1 (IRS-P6) (see instrument status) Oct 2003 - 2021
- ResourceSat-2 (see instrument status) Apr 2011 - 2021
- ResourceSat-2A (see instrument status) Dec 2016 - 2021

Instrument classification

Earth observation instrument
Passive optical radiometer or spectrometer
High resolution optical imager

WIGOS Subcomponents

Subcomponent 1
High-resolution multi-spectral VIS/IR imagers

Mission objectives

Primary mission objectives

Biomass
Fraction of vegetated land
Land cover
Leaf Area Index (LAI)
Normalised Difference Vegetation Index (NDVI)

Show all Show fewer

Tentative Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers

Variable	Relevance for measuring this variable	Operational limitations	Explanation
Biomass	5 - marginal	Cloud sensitive.. Index only.. Infrequent coverage.. Daylight only.	VIS and NIR channels. Biomass inferred from NDVI
Cloud cover	5 - marginal	Infrequent coverage.. Daylight only.	VIS and NIR channels
Cloud optical depth	4 - fair	Low-density cloud only.. Infrequent coverage.. Daylight only.	VIS and NIR channels
Fire fractional cover	2 - very high	Daylight only.. Cloud sensitive.	VIS channels with high resolution for boundary detection
Fraction of vegetated land	2 - very high	Cloud sensitive.. Daylight only.	VIS and NIR channels
Glacier cover	4 - fair	Cloud sensitive.. Long time for mapping.. Daylight only.	VIS and NIR channels
Glacier topography	5 - marginal	Cloud sensitive.. Long time for mapping.. Daylight only.	VIS channel(s) and cross-track steering capability for stereoscopy between images from neighbour orbits
Ice sheet topography	5 - marginal	Cloud sensitive.. Long time for mapping.. Daylight only.	VIS channel(s) and cross-track steering capability for stereoscopy between images from neighbour orbits
Land cover	2 - very high	Cloud sensitive.. Daylight only.	VIS and NIR channels
Land surface topography	5 - marginal	Cloud sensitive.. Long time for mapping.. Daylight only.	VIS channel(s) and cross-track steering capability for stereoscopy between images from neighbouring orbits
Leaf Area Index (LAI)	4 - fair	Cloud sensitive.. Daylight only.. Infrequent coverage.	VIS and NIR channels. LAI inferred from NDVI
Normalised Difference Vegetation Index (NDVI)	2 - very high	Cloud sensitive.. Infrequent coverage.	VIS and NIR channels
Photosynthetically Active Radiation (PAR)	5 - marginal	Cloud sensitive.. Infrequent coverage.	VIS channels, range undersampled
Sea-ice cover	5 - marginal	Cloud sensitive.. Daylight only.	VIS and NIR (for contour enhancement) channels
Short-wave cloud reflectance	5 - marginal	Infrequent coverage.	VIS and NIR channels. Unsuitable dynamic range (saturation)
Snow cover	4 - fair	Cloud sensitive.. Infrequent coverage.. Daylight only.	VIS and NIR channels
Soil moisture at surface	5 - marginal	Cloud sensitive.. Index only.. Infrequent coverage.. Daylight only.	VIS and NIR channels. Soil moisture inferred from differential brightness
Soil type	2 - very high	Cloud sensitive.. Daylight only.	VIS and NIR channels
Upward short-wave irradiance at TOA	5 - marginal	Spectral interpolation needed.. Information on BRDF needed.. Infrequent coverage.	VIS and NIR channels
Vegetation type	3 - high	Cloud sensitive.. Daylight only.	VIS and NIR channels
Aerosol volcanic ash	5 - marginal	Cloud sensitive.. Infrequent coverage.. Daylight only.	VIS and NIR channels
Aerosol volcanic ash Total Column	5 - marginal	Cloud sensitive.. Infrequent coverage.. Daylight only.	VIS and NIR channels