ALOS / PRISM data processing
JAXA Supercomputer System Annual Report February 2024-January 2025
Report Number: R24ER0100
Subject Category: Space Technology
- Responsible Representative: Sobue Shin-ichi,Associate Chief office of Earth Observation Missions,Space Technology Directorate I
- Contact Information: Kudoh fumio(kudoh.fumio@jaxa.jp)
- Members: Takashi Goto, Hidetoshi Hayasaka, Fumio Kudoh, Shunsuke Murakami, Shouko Morisaki, Taroh Mutoh, Hidekazu Mikai, Toshimi Nakata, Katsuyuki Otsuka, Kazuhiro Oka, Nozomi Sakuma, Hiroyuki Yokokawa, Tadahiro Yamamoto
Abstract
We process data obtained from the Synthetic Aperture Radar (PALSAR), AVNIR-2, and PRISM by the Advanced Land Observing Satellite "Daichi," and generate and provide user-friendly image products (Analysis Ready Data).
Reference URL
N/A
Reasons and benefits of using JAXA Supercomputer System
JAXA is working to make Earth observation satellite data publicly available in order to expand the use of such data.
As part of this, the previous system, JSS2, processes data from the entire observation period of ALOS/PALSAR, and archives large amounts of data on J-SPACE.
As for AVNIR-2, 1B1/1B2 data is also archived.
This year, some processing was carried out on PRISM L1B1/L1B2 data.
The JSS system was used to provide this data to external users as quickly as possible.
Achievements of the Year
This year, PRISM processed L1B1 and L1B2 data for the Japanese region.
The processed results are:
Number of downlink segments: 92 paths
Number of products created: 24,818 (L1B1: 18,676, capacity 5.62Tib L1B2: 6,142, capacity 1.07Tib)
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: N/A
- Thread Parallelization Methods: N/A
- Number of Processes: 1
- Elapsed Time per Case: 1 Hour(s)
JSS3 Resources Used
Fraction of Usage in Total Resources*1(%): 0.01
Details
Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.
System Name | CPU Resources Used(Core x Hours) | Fraction of Usage*2(%) |
---|---|---|
TOKI-SORA | 0.00 | 0.00 |
TOKI-ST | 1366.09 | 0.00 |
TOKI-GP | 0.00 | 0.00 |
TOKI-XM | 0.00 | 0.00 |
TOKI-LM | 0.00 | 0.00 |
TOKI-TST | 0.00 | 0.00 |
TOKI-TGP | 0.00 | 0.00 |
TOKI-TLM | 0.00 | 0.00 |
File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
---|---|---|
/home | 167.50 | 0.11 |
/data and /data2 | 105779.83 | 0.51 |
/ssd | 0.00 | 0.00 |
Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
---|---|---|
J-SPACE | 2468.24 | 8.07 |
*1: Fraction of Usage in Total Resources: Weighted average of three resource types (Computing, File System, and Archiver).
*2: Fraction of Usage:Percentage of usage relative to each resource used in one year.
ISV Software Licenses Used
ISV Software Licenses Used(Hours) | Fraction of Usage*2(%) | |
---|---|---|
ISV Software Licenses(Total) | 0.00 | 0.00 |
*2: Fraction of Usage:Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report February 2024-January 2025