Arctic Research Directory

ID-19 : Hindcast simulation for Arctic impacts on the mid-latitude climate

Type

MODEL

Title

Hindcast simulation for Arctic impacts on the mid-latitude climate

Abstract

Hindcast simulation using AGCM (AFES T79L56 version) forced by observational SST and sea ice variation is performed to estimate relative importance of the vertical coupling process and polar-tropics coupling process to the current climate change.

Model Characteristics

AFES4.1 version with T79 horizontal resolution and 56 vertical layers up to 60 km model top.

Computing Environment

Computation resource are provided by JAMSTEC Earth Simulator3.

Principal Investigator

Hiroyasu Hasumi

Atmosphere and Ocean Research Institute, The University of Tokyo

hasumi@aori.u-tokyo.ac.jp

ArCS Theme

ArCS Theme 5 : Study on Arctic climate predictability

Data Information

Model Name

AFES

Abstract (Brief description of the experiment contents (initial conditions, boundary conditions, etc.))

(1) This is the dataset simulated by high-top atmospheric model of which horizontal resolution is 150km-mesh and model-top height is about 60km. The temporally varying climate of the recent three decades (1979-2014) is simulated with historical observation dataset of monthly mean SST and SIC (Hurrel et al., 2008). (2) A 30-member of full historical simulation (like AMIP) is done as control run. Additionally, as the perturbation run (sensitivity run), 30-member runs with fixed SST or fixed SIC interannula variation are performed. (3) Comparison between control and perturbation runs can evaluate contributions of SST/SIC variations on the recent climate change. (4) Total size of this dataset is 68 TB.

Temporal Extent

Begin Date	1979-01-01
End Date	2014-12-31
Temporal Characteristics	daily and monthly

Geographic Bounding Box

North bound latitude	90.0
West bound longitude	0.0
Eastbound longitude	360.0
South bound latitude	-90.0

Grid
Dimension Name Dimension Size (slice number of the dimension) Resolution Unit
row 240 1.5 (deg)
column 120 T79 gaussian grid (deg)
vertical 27 1000, 925, 850, 775, 700, 600, 500, 400, 300, 250, 200, 150, 125, 100, 85, 70, 50, 30, 20, 15, 10, 7, 5, 3, 2, 1, 0.4 (hPa)

Dimension Name	Dimension Size (slice number of the dimension)	Resolution Unit
row	240	1.5 (deg)
column	120	T79 gaussian grid (deg)
vertical	27	1000, 925, 850, 775, 700, 600, 500, 400, 300, 250, 200, 150, 125, 100, 85, 70, 50, 30, 20, 15, 10, 7, 5, 3, 2, 1, 0.4 (hPa)

Article (the article written using this data)

Ogawa, F., N. Keenlyside, Y. Gao, T. Koenigk, S. Yang, L. Suo, T. Wang, G. Gastineau, T. Nakamura, H. N. Cheung, N.-E. Omrani, J. Ukita, Evaluating impacts of recent Arctic sea-ice loss on the northern hemisphere winter climate change, Geophysical Research Letters, 45, 3255–3263, doi:10.1002/2017GL076502. Ogi, M., S. Rysgaard, D. G. Barber, T. Nakamura, and B. Taguchi, Is summer sea surface temperature over the Arctic Ocean connected to winter air temperature over North America?, Climate Research, 70, 19–27, doi:10.3354/cr01412.

Personnel

Roll	Contact Person	Name	Nakamura Tetsu	Affiliation	Hokkaido University	Country	Japan	Email	nakamura.tetsu@ees.hokudai.ac.jp

Data Registration

09:40 on Tue July 5, 2016

Last Update

02:38 on Tue July 2, 2019