AMSR Data Catalog
Get to know AMSR -- Advanced Microwave Scanning Radiomter AMSR Series
AMSR Data Catalog

JAXA calls the data provided to the public "products," and releases standard products and research products. The AMSR series data include standard and research products of observed brightness temperatures and standard and research products of physical quantities estimated from the brightness temperatures, and there are three types of products, Level-1, Level-2, and Level-3, respectively, depending on the processing level.

The AMSR Data Catalog introduces the various products of the AMSR series.

  • Processing Level
  • Standard Product
  • Research Product
  • How to use
  • Reference Material
  • Mission Requirement
  • Data Catalog
  • Overview
  • Processing Level

Processing Level

Processing Level Definition
Level 1B (L1B) A scene *2 data product that stores the brightness temperature converted from the Level 1A antenna temperature using the conversion coefficients. (Swath data *1)
Level 1R (L1R) A scene *2 data product that stores the brightness temperature that is spatially resampled from Level 1B to match the center position and size of the Field of View (FOV) of each frequency band at each pixel. (Swath data *1)
Level 2 (L2) A scene *2 data product that stores a physical data retrieved from the brightness temperature at each pixel. (Swath data *1)
Level 3 (L3) A grid data product *3 that stores the brightness temperature or physical data converted using grid processing and temporally statistical processing.
  1. Swath data is a format in which data for each footprint is stored in a two-dimensional array (observation points in scanning direction x number of scanning lines) in order of observation time. In addition to data such as brightness temperature and geophysical quantity, quality information, latitude and longitude are stored in Swath format.
  2. The standard L1B, L1R, and L2 products are stored in a single file with one scene covering half the circumference of the earth. There are two types of scenes: ascending orbit from south to north and descending orbit from north to south.
  3. L3 products are available in daily and monthly products for ascending and descending orbits. The L3 brightness temperature product contains one file for each frequency band, each containing data for both vertical and horizontal polarization. The L3 geophysical product is a file for each geophysical quantity and contains the relevant geophysical quantity data.
  • Data Catalog
  • Overview
  • Standard Product

Standard Product

※ Click here for AMSR2 Mission Requirement
Product ID Processing Level Area Spatial
Resolution
(Approx.
size)
Brightness Temperature
(7 band, 2 polarizations)
defined by
processing
level
L1B, L1R, L3 Global 5 〜 50 km
Atmosphere Total Precipitable Water TPW L2, L3 Global over ocean 15 km
Cloud Liquid Water Content CLW L2, L3 Global over ocean 15 km
Precipitation PRC L2, L3 Tropics 〜 Temprate Zone 15 km
Ocean Sea Surface Temperature SST L2, L3 Global over ocean 50 km
Sea Surface Wind Speed SSW L2, L3 Global over ocean 15 km
Cryosphere Sea Ice Concentration SIC L2, L3 Polar region over ocean 15 km
Land Snow Depth SND L2, L3 Globale over land 30 km
Soil Moisture Content SMC L2, L3 Globale over land 50 km

Data Download

Globe Portal System (G-Portal)

The standard products are available on "Globe Portal System (G-Portal)".

User registration is required to download products.

  • Data Catalog
  • Overview
  • Research Product

Research Product

※ Click here for AMSR2 Mission Requirement
Product ID Processing Level Area Spatial
Resolution
(Approx.
size)
Atmosphere Total Precipitable Water over Land PWL L2, L3 Globale over land 15 km
Ocean 10GHz (High-resolution) SST SST L2, L3 Global over ocean 30 km
Multi-band SST SST L2, L3 Global over ocean 30 〜 50 km
All-weather Sea Surface Wind Speed ASW L2, L3 Global over ocean 60 km
Cryosphre High-resolution Sea Ice Concentration HSI L2, L3 Polar region over ocean 5 km
Detection of Thin Sea Ice TSI L2, L3 Okhotsk Sea
Bering Sea
Hudson Bay
15 km
Sea Ice Motion Vector SIM L3 Polar region over ocean 50 km
Sea Ice Thickness
(< 20cm)
under development
SIT L2, L3 Polar region, over ocean 15 km
Sea Ice Thickness
(>= 20cm)
under development
SIT L2, L3 Polar region over ocean 15 km
Land Snow Depth *1 SND L2, L3 Globale over land 30 km
Soil Moisture Content *1 SMC L2, L3 Globale over land 50 km
Land Surface Temperature LST L2, L3 Globale over land 15 km
Soil Moisture Content (SMC) and Vegetation Water Content (VWC) based on the Land Data Assimilation Methodology
under development
LDA L3 Gloval over land (snow free area) 25 km
Vegetation Water Content
under development
VWC L2, L3 Globale over land 10 km
  1. AMSR2 research products with algorithms under development for AMSR3.

In addition, AMSR-E brightness temperature in slow rotation mode is distributed to researchers.

Data Download

GCOM-W Research Product Distribution Service

The research products are available on "GCOM-W Research Product Distribution Service".

User registration is required to download products.

  • Data Catalog
  • Overview
  • How to use

How to use

For information on using the product, including data formats, sample programs, and tools, please refer to the "Resources" section of the AMSRs Web site.
  • Data Catalog
  • Overview
  • Reference Material

Reference Material

AMSR2 Algorithm Description
  • Data Catalog
  • Overview
  • Mission Requirement

Mission Requirement

AMSR2 Mission Requirement
Standard Product
Research Product