ID-13 : Role of Arctic cyclone for large sea ice reduction on August 2012
Type
MODEL
Title
Role of Arctic cyclone for large sea ice reduction on August 2012
Abstract
We simulate the Arctic Cyclone generated in arctic region at 3 Aug. 2012 using the NICAM and COCO coupling model. This cyclone is thought as main factor to reduce the sea ice in year of 2012. Our purpose is to estimate the influence of the Arctic Cyclone on the sea ice reduction.
Model Characteristics
Atmospheric model (NICAM) coupled in our model uses the non-hydrostatic equation (does not use the cumulus param.) with high-horizontal resolution, which can simulate the arctic clouds with explicitly.
Computing Environment
FX10 (University of Tokyo)
Principal Investigator
Hiroyasu Hasumi
Atmosphere and Ocean Research Institute, The University of Tokyo
hasumi@aori.u-tokyo.ac.jp
Data Information
Model Name
NICOCO
Abstract (Brief description of the experiment contents (initial conditions, boundary conditions, etc.))
(1) This is the dataset simulated by high resolution atmospheric model of which can simulate the clouds with 10 km-mesh order over the globe.
(2) Arctic cyclone generated in 3 August 2012 impacts on the large sea ice reduction. Initial conditon for atmopsheric model is based on the National Center for Environmental Prediction (NCEP) Global Data Assimilation System (GDAS). The initial conditions for COCO are determined as follows. The model was integrated under the atmospheric boundary conditions of the JRA-55. We use 6-hourly data for the 2-m air temperature, wind speed, and humidity; and 3-hourly data for the wind stress vector, net short wave, downward long wave, and water flux. Then, we calculate the ocean conditions from 1 January 1958 to 3 August 2012 using hindcasts.
(3) Integration of NICOCO was perfrormed for 12 days, starting from 3 August 2012. We investigated the impact of Arctic cyclone on large reducution of sea ice.
Grid Information
Dimension Size (slice number of the dimension)
row: 640
column: 320
vertical: 40
Resolution Unit
row: 0.5625 (deg)
column: 0.5625 (deg)
vertical: 80, 248, 429, 625, 835, 1062, 1306, 1570, 1853, 2160, 2489, 2845, 3228, 3642, 4087, 4567, 5084, 5642, 6243, 6891, 7590, 8342, 9154, 10029, 10971, 11988, 13083, 14264, 15536, 16908, 18387, 19980, 21698, 23550, 25546, 27697, 30016, 32515, 35209, 38113 (m)
Temporal Extent
| Begin Date | 2012-08-03 |
| End Date | 2012-08-15 |
| Temporal Characteristics | 30 minutes for atmospheric data. 1 hour for oceanic data. |
Geographic Bounding Box
| North bound latitude | 90.0 |
| West bound longitude | 0.0 |
| Eastbound longitude | 360.0 |
| South bound latitude | -90.0 |
Article (the article written using this data)
Kubokawa, H., M. Satoh, T. Kawasaki, N. Kimura, H. Hasumi, Role of Arctic cyclone for large sea ice reduction on August 2012, to be submitted to J. Geophys. Res.
Personnel
| Roll | Contact Person | Name | Hiroyasu Kubokawa | Affiliation | Atmosphere and Ocean Research Institute, The University of Tokyo | Country | Japan | kubok@aori.u-tokyo.ac.jp |
|---|
Data Registration
03:03 on Thu June 30, 2016
Last Update
06:20 on Fri July 5, 2019