AMSR-E/Aqua L1A Raw Observation Counts, Version 2

Data set id:

AMSREL1A

DOI: 10.5067/AMSR-E/AMSREL1A.002

Data Citation and Acknowledgment
As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility.

Japan Aerospace Exploration Agency (JAXA). (2006). AMSR-E/Aqua L1A Raw Observation Counts. (AMSREL1A, Version 2). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/AMSR-E/AMSREL1A.002. [describe subset used if applicable]. Date Accessed 12-13-2024.

Copied

Other standard citation formats may be found on the DOI Citation Formatter website.

Describing subset: When applicable, include the information a reader would need to extract the same subset at the end of your citation. If multiple or complex steps were incolved, it may be more appropriate to include this information in the paper itself.

See our Citation Policies for more details about how to structure your data citation.

There is a more recent version of these data.
Version Summary

The V002 AMSREL1A product features empirical corrections to the Aqua scan azimuth and satellite flight direction. With corrected sun azimuth, sun elevation, earth azimuth, and earth incidence angles, the geometric accuracy of AMSR-E 89 GHz data improved to within 2 km, compared to Version 1 AMSREL1A data.

Overview

The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA EOS Aqua satellite provides global passive microwave measurements of terrestrial, oceanic, and atmospheric parameters for the investigation of global water and energy cycles. AMSR-E Level 1A observation counts are processed from Level 0 science packet data by the Japan Aerospace Exploration Agency (JAXA). Each half-orbit data granule consists of observation counts, antenna temperature coefficients, offsets for calculating antenna temperatures, calibration temperature counts, land/ocean flags, time, latitude, longitude, and navigation fields in HDF format. The data sampling interval is 2.6 msec for each 1.5-sec scan period for the 6.9-GHz to 36.5-GHz channels, and 1.3 msec for the 89.0-GHz channel. AMSR-E collects 243 data points per scan for the 6.9-GHz to 36.5-GHz channels, and 486 data points for the 89.0-GHz channel. Each swath spans 50 minutes. Data are available via FTP.

Parameter(s):

SENSOR COUNTS

Platform(s):

AQUA

Sensor(s):

AMSR-E

Data Format(s):

HDF

Temporal Coverage:

1 June 2002 to 4 October 2011

Temporal Resolution:

50 minute

Spatial Resolution:

Not Specified

Spatial Coverage:

N:

90

S:

-90

E:

180

W:

-180

Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

View Metadata Record

Data Access & Tools

This data set has been retired. There is a more recent version of these data.

Documentation

Product Specification Documents

Aqua AMSR-E Level 1 Product Format Description Document

Help Articles

How to Articles

Filter and order from a data set web page using the Data Access Tool

Many NSIDC DAAC data sets can be accessed using the NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface.Users have the option to