ALOS AVNIR2 dataset


GCMD Science Keywords
[Land Surface ] [Land Use/Land Cover ] [Land Cover ] [Land Resources ] [Land Use Classes ] [Topography ] [Contours ] [Landforms ] [Topographical Relief ] [Spectral/Engineering ] [Visible Wavelengths ] [Visible Imagery ]

IDENTIFICATION INFORMATION

Name ALOS AVNIR2 dataset
Metadata Identifier ALOS_AVNIR220200401051219-en

CONTACT

CONTACT on DATASET

Name Remote Sensing Technology Center
E-mail alos_od@restec.or.jp

DOCUMENT AUTHOR

Name Satoko MIURA
Organization JAXA/Mission Operations System Office

DATASET CREATOR

Name JAXA

DATE OF THIS DOCUMENT

2020-04-01

DATE OF DATASET

  • creation : 2013-04-30

DATASET OVERVIEW

Abstract

The Advanced Visible and Near Infrared Radiometer type 2 (AVNIR-2) is a visible and near infrared radiometer for observing land and coastal zones. It provides better spatial land-coverage maps and land-use classification maps for monitoring regional environments. AVNIR-2 is a successor to AVNIR that was on board the Advanced Earth Observing Satellite (ADEOS), which was launched in August 1996. ... Its instantaneous field-of-view (IFOV) is the main improvement over AVNIR. AVNIR-2 also provides 10m spatial resolution images, an improvement over the 16m resolution of AVNIR in the multi-spectral region. Improved CCD detectors (AVNIR has 5,000 pixels per CCD; AVNIR-2 7,000 pixels per CCD) and electronics enable this higher resolution. A cross-track pointing function for prompt observation of disaster areas is another improvement. The pointing angle of AVNIR-2 is +44 and - 44 degree.

Topic Category(ISO19139)

  • geoscientificInformation

  • imageryBaseMapsEarthCover

Temporal Extent

Begin Date 2006-01-24
End Date 2011-04-22

Geographic Bounding Box

North bound latitude 90
West bound longitude -180
Eastbound longitude 180
South bound latitude -90

Grid

Dimension Name Dimension Size (slice number of the dimension) Resolution Unit
()
()

Keywords

Keywords on Dataset

Keyword Type Keyword Keyword thesaurus Name
theme [Land Surface ] > [Land Use/Land Cover ] > [Land Cover ], [Land Surface ] > [Land Use/Land Cover ] > [Land Resources ], [Land Surface ] > [Land Use/Land Cover ] > [Land Use Classes ], [Land Surface ] > [Topography ] > [Contours ], [Land Surface ] > [Topography ] > [Landforms ], [Land Surface ] > [Topography ] > [Topographical Relief ], [Spectral/Engineering ] > [Visible Wavelengths ] > [Visible Imagery ] GCMD_science

Online Resource

Distribution Information

name version specification
CEOS format (BSQ)

DATA PROCESSING

General Explanation of the data producer's knowledge about the lineage of a dataset

There are following processing levels.

[Level 1A]

This is an AVNIR-2 raw data extracted from the Level 0 data, expanded and generated lines.

Ancillary information such as radiometric information and etc. required for the processing, superior to the Level 1B is added.

[Level 1B1]

This is the data that performed radiometric correction to Level 1A data, and added the absolute calibration coefficient.

Ancillary information such as radiometric information and etc. required for the processing, superior to the Level 1B2 is added.

[Level 1B2]

This is the data that performed geometric correction to Level 1B1 data.

The following correction options are available.

R: Geo-reference data

G: Geo-corded data

D: Rough DEM (Digital Elevation Model) correction: this option corrects the topographical influence to the areas where DEM was covered.

DEM correction is effective only in Japanese region. Further, DEM correction error can occur with high pointing angles. Accuracy is not guaranteed since errors are complemented.


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This project is supported by " Data Integration & Analysis System " funded by MEXT, Japan
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