ASDC | MIB1LM

MISR Level 1B

Entry Title: MISR Level 1B1 Local Mode Radiance Data V002

Entry ID: MIB1LM_002

Aerosols Clouds Radiation Budget

Description

MIB1LM_002 is the Multi-angle Imaging SpectroRadiometer (MISR) Level 1B1 Local Mode Radiance Data version 2. It contains the data numbers (DNs) radiometrically scaled to radiances with no geometric resampling. Multi-angle Imaging SpectroRadiometer (MISR) Level 1B1 Radiance data product contains spectral radiances for all MISR channels. Each radiance value represents the incident radiance averaged over the sensor's total band response. Processing includes both radiance scaling and conditioning steps. Radiance scaling converts the Level 1A data from digital counts to radiances, using coefficients derived in combination with the On-Board Calibrator (OBC) and vicarious calibrations. The OBC contains Spectralon calibration panels which are deployed monthly and reflect sunlight into cameras. The OBC detector standards then measure this reflected light to provide the calibration. No out-of-band correction is done for this product, nor are the data geometrically corrected or resampled. Data collection for this product is ongoing.

The MISR instrument consists of nine pushbroom cameras which measure radiance in four spectral bands. Global coverage is achieved in nine days. The cameras are arranged with one camera pointing toward the nadir, four cameras pointing forward, and four cameras pointing aftward. It takes seven minutes for all nine cameras to view the same surface location. The view angles relative to the surface reference ellipsoid, are 0, 26.1, 45.6, 60.0, and 70.5 degrees. The spectral band shapes are nominally Gaussian, centered at 443, 555, 670, and 865 nm.

MISR itself is an instrument designed to view Earth with cameras pointed in 9 different directions. As the instrument flies overhead, each piece of Earth's surface below is successively imaged by all 9 cameras, in each of 4 wavelengths (blue, green, red, and near-infrared). The goal of MISR is to improve our understanding of the affects of sunlight on Earth, as well as distinguish different types of clouds, particles and surfaces. Specifically, MISR monitors the monthly, seasonal, and long-term trends in three areas: 1) amount and type of atmospheric particles (aerosols), including those formed by natural sources and by human activities; 2) amounts, types, and heights of clouds, and 3) distribution of land surface cover, including vegetation canopy structure.

DOI

10.5067/Terra/MISR/MIB1LM_L1.002

Citation Styles for this Dataset

VIEW RELATED INFORMATION

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)

NASA EOS ATB Documents: MISR

ANOMALIES

ASDC Terra Spacecraft Loss of Accurate Orbit Data Record

DATA CITATION POLICY

How to cite ASDC data

DATA QUALITY

MISR Level 1 Products Quality Statement - August 29, 2007

GENERAL DOCUMENTATION

PI DOCUMENTATION

PROCESSING HISTORY

MISR Maturity Level Definitions

PRODUCT USAGE

PRODUCTION HISTORY

ASDC List of MISR Level 1A CCD, 1B1, 1B2, and Browse Products
ASDC Overview of MISR Data Versioning Index
MISR Level 1 Production Report

PUBLICATIONS

MISR Peer-Reviewed Publications

NASA Earth Observatory Article: Looking at the Moon to Better See Earth - Terra satellite performs manuver that allows all nine of MISR's camera to capture images of the moon.

NASA Earth Observatory Article: Squeezing Water from Rock - Survivors of the New Madrid earthquakes reported not only intense ground shaking and land movement, but also an unfamiliar phenomenon of water and sand spouting up through cracks in the Earth's surface.

NASA Earth Observatory Article: Tracking Clouds - Tune in to the evening weather report on any given day, and you'll no doubt see satellite images of clouds.

NASA Earthdata Content Delivery Network (CDN) Article: Aerosols over Australia - Researchers explore the links between atmospheric aerosols, climate change, and ultraviolet rays.

NASA Earthdata Content Delivery Network (CDN) Article: Cloudy with a chance of Drizzle - By analyzing data from the MISR instrument, scientists discover that a unique type of cloud formation is much more prevalent than was previously believed.

NASA Earthdata Content Delivery Network (CDN) Article: Following the World Trade Center plume - Remote sensing helps track the drift of harmful pollutants following the World Trade Center collapse.

NASA Earthdata Content Delivery Network (CDN) Article: Smoke over Athens - The effects of forest fires show up in a multi-satellite view of pollution.

NASA JPL Images: Tropical Storm Harvey over Texas - After making landfall as a Category 4 hurricane the day before, striking images are captured by MISR as the storm maintained a dangerous tropical storm status.

NASA JPL Photojournal: New Images of Irma's Towering Clouds - MISR passes over Irma over the Dominican Republic as a Category 5 hurricane.

USER'S GUIDE

From GCMD Science Keywords:

VISIBLE RADIANCE
VISIBLE WAVELENGTHS
VISIBLE IMAGERY

Near-Infrared Imagery
Near-Infrared Wavelenghts
Radiance

Data Distribution

File Format(s):

HDF-EOS2

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Spatial Information

Spatial Coverage: (S: -90, N: 90), (W: -180, E: 180)
Spatial Coverage Type: Horizontal
Longitude Resolution: 275 km
Latitude Resolution: 275 km
Horizontal Resolution Range: 250 km - < 500 km or approximately 2.5 degrees - < 5.0 degrees
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

GLOBAL

Temporal Information

Temporal Coverage: 2000-02-27 - Present
Temporal Resolution: about 15 orbits/day

Platforms

Earth Observation Satellites

Terra

Earth Observing System, TERRA (AM-1)

MISR

Multi-Angle Imaging SpectroRadiometer

AA AF AN BA BF CA CF DA DF

Metadata Dates

Created on 2019-07-08

Last updated on 2022-02-11