ADEOS-II/AMSR L3 18.7GHz-H Mean for Brightness Temperature (1day,0.25deg)

  • DOI: 10.57746/EO.01gs73ar2q4vxsg5j9txbzjkqm
  • Last Updated: 2023-02-14
Data Progress: Complete
G-Portal

Product Summary

ADEOS-II/AMSR L3 18.7GHz-H Mean for Brightness Temperature (1day,0.25deg) dataset is obtained from the AMSR sensor onboard ADEOS-II and produced by the Japan Aerospace Exploration Agency (JAXA).
The Advanced Earth Observing Satellite-II (ADEOS-II) was launched on December 14, 2002 (Japanese Standard Time). The objective of ADEOS-II was to acquire data to contribute to international global climate change research, as well as for applications such as meteorology and fishery. ADEOS-II operation on orbit was given up on October 31 2003, because sufficient electric power was not available to maintain operation of the satellite.
AMSR observes various physical contents concerning to water (H2O) by receiving weak microwaves naturally radiated from the Earth's surface and atmosphere and also regardless of day or night, the presence of clouds. Those sensors aim at collecting global data for mainly understanding the circulation of water and energy.
Level 3 data inputs level 1B and level 2 data and projected to the map in accordance with the specified projection technique (Equi-Rectangular (EQR) or Polar Stereographic (PS)), and then averaged temporally and spatially. These statistical values are computed for observation data on ascending orbit and descending orbit respectively.
This product includes daily mean Brightness Temperature at 18.7GHz horizontal polarized wave. Values that are calculated from sensor counts and are proportional to the power of observed electromagnetic wave. Unit is Kelvin.
The provided format is HDF4. The current version of the product is "Version 7". The statistical period is 1 day.
The projection method is EQR and PS. The generation unit is global.

Platform
ADEOS-II
Sensor
AMSR

Coverage

Temporal Coverage

2003-04-02 to 2003-10-25

Spatial Coverage

Bounding Rectangle
(90.0°, -180.0°, -90.0°, 180.0°)

Resolution

0.25 deg

Location

  • GEOGRAPHIC REGION > GLOBAL
Dataset Short Name
ADEOS-II_AMSR_L3_TB_18.7GHz-H_1day_0.25deg
Platform / Sensor
ADEOS-II / AMSR
Coverage
Spatial Coverage
Bounding Rectangle
(90.0°, -180.0°, -90.0°, 180.0°)
Temporal Coverage
2003-04-02 to 2003-10-25
Product Level ID
L3
Version Description

File Format
HDF4
Dataset Type
1day / Global
Resolution
Spatial Resolution
0.25 deg
Temporal Resolution
1day
Dataset Progress
Complete
Projection
EQR and PS
Collection Data Type
SCIENCE_QUALITY
Get Data
https://gportal.jaxa.jp/gpr/?lang=en
Dataset Title
ADEOS-II/AMSR L3 18.7GHz-H Mean for Brightness Temperature (1day,0.25deg)
Distribution Format
HDF4
Fees
Free
Citation
Japan Aerospace Exploration Agency. 2003. ADEOS-II/AMSR L3 18.7GHz-H Mean for Brightness Temperature (1day,0.25deg). https://doi.org/10.57746/EO.01gs73ar2q4vxsg5j9txbzjkqm
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Use Constraints

The user is entitled to use G-Portal data free of charge without any restrictions (including commercial use) except for the condition about acknowledgement of data credit as stipulated in G-portal terms of use 7.(2).Click here for detailed G-Portal data usage constrains.

G-Portal Terms of service
https://gportal.jaxa.jp/gpr/index/eula?lang=en
ISO Topic Categories
  • Imagery/Base Maps/Earth Cover
Science Keywords
  • EARTH SCIENCE > SPECTRAL/ENGINEERING > MICROWAVE > BRIGHTNESS TEMPERATURE
Location Keywords
  • GEOGRAPHIC REGION > GLOBAL

ISO Topic Categories is the keywords in the ISO 19115 - Geographic Information Metadata.

Science Keywords hosts Global Change Master Directory (GCMD) Keywords which are a hierarchical set of controlled Earth Science vocabularies that help ensure Earth science data, services, and variables are described in a consistent and comprehensive manner and allow for the precise searching of metadata and subsequent retrieval of data, services, and variables.