ALOS AVNIR2 dataset
1. IDENTIFICATION INFORMATIONName

ALOS AVNIR2 dataset

Metadata
Identifier

ALOS_AVNIR220230727082328-en

2. CONTACT
2.1 CONTACT on DATASET
NameRemote Sensing Technology CenterE-mailalos_od@restec.or.jp

2.2 CONTACT on PROJECT

3. DOCUMENT AUTHOR
Name

Satoko MIURA

Organization

JAXA/Mission Operations System Office

4. DATASET CREATOR
Name

JAXA

5. DATE OF THIS DOCUMENT
2023-07-27

6. DATE OF DATASET
�creation : 2013-04-30

7. DATASET OVERVIEW
7.1 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 toAVNIR that was on board the Advanced Earth Observing Satellite (ADEOS), which was launched in1

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 inthe multi-spectral region. Improved CCD detectors (AVNIR has 5,000 pixels per CCD; AVNIR-2 7,000pixels 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.

7.2 Topic Category(ISO19139)
�geoscientificInformation
�imageryBaseMapsEarthCover

7.3 Temporal Extent
Begin Date

2006-01-24

End Date

2011-04-22

7.4 Geographic Bounding Box
Northlatitudebound 90Westlongitudebound -180

Eastboundlongitude

180

South
latitudebound -90

7.5 Grid
Dimension NameDimension
Size Resolution Unit(slice number ofthe dimension)()()

7.6 Geographic Description
7.7 Keywords
7.7.1 Keywords on Dataset
Keyword Type

Keyword

KeywordNametheme

Land Surface > Land Use/Land Cover > Land Cover, Land GCMD_science
Surface > Land Use/Land Cover > Land Resources, Land
Surface > Land Use/Land Cover > Land Use Classes, Land
Surface > Topography > Contours, Land Surface > Topography

2thesaurus

> Landforms, Land Surface > Topography > Topographical
Relief, Spectral/Engineering > Visible Wavelengths >Visible Imagery

7.7.2 Keywords on Project

7.8 Online Resource�ALOS User Interface Gateway (AUIG)
https://auig.eoc.jaxa.jp/[Products order is only available for JAXA project members) :7.9 Data Environmental Information
7.10 Distribution Information
nameversion

specification

CEOS format (BSQ)

8. DATA PROCESSING
8.1 Data Processing (1)8.1.1 General Explanation of the data producer's knowledge about thelineage 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 absolutecalibration 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 data3

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 withhigh pointing angles. Accuracy is not guaranteed since errors are complemented.

8.1.2 Data Source
Data Source Citation Name

Description of derived parameters and processing
techniques used

9. DATA REMARKS
10. DATA POLICY
10.1 Data Policy by the Data Provider
10.2 Data Policy by the Project

11. LICENSE
12. DATA SOURCE ACKNOWLEDGEMENT
12.1 Acknowledge the Data Provider
12.2 Acknowledge the Project

13. REFERENCES

4