Cloud Aerosol Radiation Application Research
JAXA Supercomputer System Annual Report April 2016-March 2017
Report Number: R16E0095
- Responsible Representative: Teruyuki Nakajima(Earth Observation Research Center)
- Contact Information: Maki Kikuchi(kikuchi.maki@jaxa.jp)
- Members: Naofumi Yoshida, Misao Yamamoto, Kazuhiro Sakamoto, Yukinori Arima
- Subject Category: Space(Space utilization)
Abstract
Long-term process of cloud microphysics estimation from CloudSat satellite and CALIPSO satellite
Goal
To construct a climate dataset of cloud and atmospheric particles (aerosols) from CloudSat, CALIPSO and EarthCARE satellites and to deepen the understanding of the cloud behavior in the Earth system and the aerosol-cloud interaction, which induce the large uncertainties in the climate change prediction.
Objective
To construct a long-term dataset of cloud and atmospheric particles (aerosols) from CloudSat and CALIPSO satellites.
References and Links
N/A
Use of the Supercomputer
Long-term process
Necessity of the Supercomputer
For accelerating application research by speeding-up the long-term processes
Achievements of the Year
Long-term process of cloud microphysics estimation from CloudSat satellite and CALIPSO satellite has done twice.
target period : 90 months x 2set
number of data : 33097 x 2set
processing time : 32.5 hour x 2set
normal process time for one data : ~560 [sec]
Effective process time for one data by JSS2 (160 parallel process) : ~3.5 [sec]
→ 160 times faster by using JSS2 SORA-MA
Fig.1 shows the effective radius of ice as a major physical data of the output.
Fig.1:Effective radius of ice
Publications
N/A
Computational Information
- Parallelization Methods: Serial
- Process Parallelization Methods: n/a
- Thread Parallelization Methods: n/a
- Number of Processes: 160
- Number of Threads per Process: 1
- Number of Nodes Used: 10
- Elapsed Time per Case (Hours): 32.5
- Number of Cases: 2
Resources Used
Total Amount of Virtual Cost(Yen): 536,551
Breakdown List by Resources
| System Name | Amount of Core Time(core x hours) | Virtual Cost(Yen) |
|---|---|---|
| SORA-MA | 320,264.59 | 526,755 |
| SORA-PP | 0.00 | 0 |
| SORA-LM | 0.00 | 0 |
| SORA-TPP | 0.00 | 0 |
| File System Name | Storage assigned(GiB) | Virtual Cost(Yen) |
|---|---|---|
| /home | 15.89 | 45 |
| /data | 158.95 | 453 |
| /ltmp | 3,255.21 | 9,297 |
| Archiving System Name | Storage used(TiB) | Virtual Cost(Yen) |
|---|---|---|
| J-SPACE | 0.00 | 0 |
Note: Virtual Cost=amount of cost, using the unit price list of JAXA Facility Utilization program(2016)
JAXA Supercomputer System Annual Report April 2016-March 2017