Full Name Visible Infra-red Scanner Status No longer operational
Instrument Agencies NASA Maturity
Instrument Type Imaging multi-spectral radiometers (vis/IR) Geometry Cross-track scanning
Instrument Technology Multi-purpose imaging Vis/IR radiometer Sampling Imaging
Data Access Open Access Data Format HDF
Measurements and Applications Data to be used in conjunction with data from CERES instrument to determine cloud radiation. Will enable 'calibration' of precipitation indices derived from other satellite sources.
Resolution Summary 2 km at nadir
[Best Resolution: 2000m]
Swath Summary 720 km
Accuracy Summary
Waveband Summary VIS: 0.63 µm, SWIR - MWIR: 1.6 µm and 3.75 µm, TIR: 10.8 µm and 12 µm
VIS (~0.40 µm - ~0.75 µm)
SWIR (~1.3 µm - ~3.0 µm)
MWIR (~3.0 µm - ~6.0 µm)
TIR (~6.0 µm - ~15.0 µm)
Instrument Measurements
Measurements Overview
Cloud type, amount and cloud top temperatureCloud type
Multi-purpose imagery (ocean)Ocean imagery and water leaving spectral radiance
Radiation budgetUpward long-wave irradiance at TOA
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Earth Radiation Budget click here click here search ECV Inventory records
Ocean Colour click here click here search ECV Inventory records
Instrument Missions
TRMM - Tropical Rainfall Measuring Mission (1997 - 2015)