ASDC | MIL2ASLS

MISR Level 2

Entry Title: MISR Level 2 Surface parameters V002

Entry ID: MIL2ASLS_2

Radiation Budget

Description

MIL2ASLS_2 is the Multi-angle Imaging SpectroRadiometer (MISR) Level 2 Land Surface parameters version 2 data product. It contains a variety of information on the Earth's surface; such ashemispherical directional reflectance factor (HDRF), bihemispherical reflectance (BHR) (i.e., albedo), bidirectional reflectance factor (BRF), directional hemispherical reflectance (DHR), BRF model parameters, Fractional absorbed Photosysenthetically Active Radiation (FPAR), and terrain-referenced view and illumination angles. A surface retrieval is conducted on regions for which valid land aerosol retrieval exists. The retrieval is performed using the corrected equivalent reflectances, retrieved aerosol parameters, and auxiliary information from the Simulated MISR Ancillary Radiative Transfer (SMART) dataset. The spectral and Photosynthetically Active spectral Region (PAR)-integrated BHR and DHR are retrieved, along with the spectral land HDRF and BRF and BRF model parameters, for all valid land and inland water subregions. Subregion surface classification and leaf area index (LAI) and regional FPAR are also determined. Subregion variability is also calculated for land regions. Data collection for this product was completed in June 2017.

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/MIL2ASLS_L2.002

Citation Styles for this Dataset

Publications which Cite this Collection

Li, Jian; Chen, Shengbo; Qin, Wenhan; Murefu, Mike; Wang, Yufei; Yu, Yan; Zhen, Zhijun (2019). Spatio-temporal Characteristics of Area Coverage and Observation Geometry of the MISR Land-surface BRF Product: A Case Study of the Central Part of Northeast Asia.

Li, J.; Chen, S.; Qin, W.; Murefu, M.; Wang, Y.; Yu, Y.; Zhen, Z. (2019). ANALYSIS OF ACCURACY OF MODIS BRDF PRODUCT (MCD43 C6) BASED ON MISR LAND SURFACE BRF PRODUCT – A CASE STUDY OF THE CENTRAL PART OF NORTHEAST ASIA.

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PROJECT HOME PAGE

MISR project home page

MISR Mission Overview

TERRA Overview

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 GUIDELINES

How to cite ASDC data

DATA PRODUCT SPECIFICATION

Data Product Specification for MISR V4.2 Software Delivery Updates - Revision P, November 19, 2007

DATA QUALITY

GENERAL DOCUMENTATION

ASDC Overview of MISR File Naming and Versioning Conventions
Overview of MISR Data at the ASDC, 2015
Overview of MISR Data at the ASDC, 2023

MICRO ARTICLE

PRODUCT USAGE

PRODUCTION HISTORY

PUBLICATIONS

MISR Peer-Reviewed Publications

USER'S GUIDE

Multi-angle Imaging SpectroRadiometer Project Handbook

From GCMD Science Keywords:

VEGETATION COVER
CANOPY CHARACTERISTICS
LAND USE/LAND COVER CLASSIFICATION
ATMOSPHERIC RADIATION
PHOTOSYNTHETICALLY ACTIVE RADIATION
PLANT CHARACTERISTICS
REFLECTANCE

Bidirectional Reflectance Factor (BRF)
Bihemispherical Reflectance
Directional Hemispherical Reflectance
Fractional Absorbed Photosynthetically Active Radiation (FAPAR)
LAI (Leaf Area Index)
Normalized Difference Vegetation Index (NDVI)
Radiant Exitance

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: 1.1 km - 17.6 km
Latitude Resolution: 1.1 km - 17.6 km
Horizontal Resolution Range: 10 km - < 50 km or approximately .09 degree - < .5 degree
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

GLOBAL LAND

Temporal Information

Temporal Coverage: 2000-02-24 - 2017-06-01
Temporal Resolution: about 15 orbits/day

Platforms

Earth Observation Satellites

Terra

Earth Observing System, TERRA (AM-1)

MISR

Multi-Angle Imaging SpectroRadiometer

Metadata Dates

Created on 2019-06-14

Last updated on 2022-01-31