ASDC | MIL2ASLS

MISR Level 2

Entry Title: MISR Level 2 Surface parameters V002

Entry ID: MIL2ASLS_002

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, 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 entire mission has been reprocessed to version 3. The revision to the aerosol and land surface products includes both product format and significant algorithm changes, which impact the quality and performance of both aerosol and land surface retrievals.

The MISR instrument consists of nine push-broom cameras that 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 forward, and four 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 is designed to view Earth with cameras in 9 different directions. As the instrument flies overhead, all nine cameras successfully imaged each piece of Earth's surface below in 4 wavelengths (blue, green, red, and near-infrared). MISR aims to improve our understanding of the effects of sunlight on Earth and 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.

HOME PAGE

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:

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

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
Coordinate System: Cartesian
Granule Spatial Representation: Orbit

Locations

GLOBAL LAND

Temporal Information

Temporal Coverage: 1999-12-18 - Present

Platforms

Earth Observation Satellites

Terra

Earth Observing System, Terra (AM-1)

MISR

Multi-Angle Imaging SpectroRadiometer

AN DF CF BF AF AA BA CA DA

Metadata Dates

Created on 2019-06-14

Last updated on 2020-11-24