Interannual Variability of Sea Ice Area in the Sea of Okhotsk : Importance of Surface Heat Flux in Fall
スポンサーリンク
概要
- 論文の詳細を見る
We examine the interannual variability of the sea ice area in the Sea of Okhotsk in terms of surface heat flux, using highly resolved flux data with the ice concentration taken into account. On the northwest and east Sakhalin shelves, where the initial ice formation occurs, the onset of ice formation is simply determined by the local heat flux in fall (October-November); the degree to which the ocean is cooled by the atmosphere. Consequently, this heat flux mostly determines the interannual variability of sea ice area in the Okhotsk Sea in the initial stage. The air temperature anomaly is the main cause of the heat flux anomaly in fall. The fall heat flux has persistently affected the ice area anomaly, particularly until mid-January. In the later sea ice season, the relationship between the ice area and heat flux is obscured, particularly after mid-January, by the heat insulating effect of sea ice. The ice area variabilities in the southern and northeast regions are correlated with the local heat flux in the months preceding ice appearance, but not strongly. Our analysis suggests that the heat flux does not determine to what extent the ice advances finally in the Okhotsk Sea. Typical heat flux distributions in heavy and light ice years are also presented from our heat flux data: the heat loss center is located in the central Okhotsk Sea in light ice years, and moves to the eastern Okhotsk Sea near the Kuril Straits in heavy ice years.
- 社団法人日本気象学会の論文
- 2006-10-25
著者
-
OHSHIMA Kay
Institute of Low Temperature Science, Hokkaido University
-
Ohshima K
Hokkaido Univ. Sapporo Jpn
-
Ohshima Kay
Hokkaido Univ. Sapporo Jpn
-
NIHASHI Sohey
Institute of Low Temperature Science, Hokkaido University
-
HASHIYA Eisuke
Graduate School of Environmental Earth Science, Hokkaido University
-
WATANABE Tomohiro
Graduate School of Environmental Earth Science, Hokkaido University
-
Ohshima Kay
Institute Of Llow Temperature Science Hokkaido University
-
Nihashi Sohey
Institute Of Low Temperature Science Hokkaido University
-
Hashiya Eisuke
Graduate School Of Environmental Earth Science Hokkaido University
-
Watanabe Tomohiro
Graduate School Of Environmental Earth Science Hokkaido University
関連論文
- Thickness and production of sea ice in the Okhotsk Sea coastal polynyas from AMSR-E
- Seasonal variations in ocean structure and current in Ongul Strait, Antarctica, in 1991
- PRELIMINARY RESULTS OF HYDROGRAPHY UNDER FAST ICE IN LUTZOW-HOLM BAY, ANTARCTICA IN 1990
- A NOTE ON WATER EXCHANGE UNDER FAST ICE IN LUTZOW-HOLM BAY, ANTARCTICA
- ICE PRODUCTION AND CONVECTIVE-MIXING IN THE ANTARCTIC COASTAL POLYNYA
- Data of Sea-ice Cores Obtained in Lutzow-Holm Bay from 1990 to 1992 (JARE-31,-32) in the Period of Japanese Antarctic Climate Research
- SEA ICE IN LUTZOW-HOLM BAY (II) : ITS STRUCTURE AND GROWTH PROCESSES
- GROWTH PROCESSES OF SEA ICE IN ONGUL STRAIT
- VARIABILITIES OF CURRENTS UNDER FAST ICE IN LUTZOW-HOLM BAY, ANTARCTICA-COMPARISON BETWEEN OBSERVATIONS AND MODEL
- SEASONAL VARIATIONS OF THE ANTARCTIC COASTAL OCEAN IN AND OFF LUTZOW-HOLM BAY
- SEA-ICE FORMATION AND WATER STRUCTURES IN COASTAL POLYNYAS OFF LUTZOW-HOLM BAY AND BREID BAY
- Growth processes of sea ice in Lutzow-Holm Bay (abstract)
- Stepped structure in temperature and salinity profiles,observed near icebergs trapped by fast ice, Antarctica (abstract)
- MEASUREMENT OF WATER TEMPERATURE PROFILE IN COASTAL POLYNYAS USING AXBT
- DISTRIBUTION OF SEA ICE OFF QUEEN MAUD LAND FROM NOAA SATELLITE AVHRR IMAGERY
- Properties of Sea Ice and and Overlying Snow in the Southern Sea of Okhotsk
- Direct observations of sea-ice thickness and brine rejection off Sakhalin in the Sea of Okhotsk
- Subinertial and Seasonal Variations in the Soya Warm Current Revealed by HF Ocean Radars, Coastal Tide Gauges, and Bottom-Mounted ADCP
- Volume Transport of the Soya Warm Current Revealed by Bottom-Mounted ADCP and Ocean-Radar Measurement
- Water Mass Exchange and Diapycnal Mixing at Bussol' Strait Revealed by Water Mass Properties
- Observation of the Soya Warm Current Using HF Ocean Radar
- A Generation Mechanism for Mesoscale Eddies in the Kuril Basin of the Okhotsk Sea : Baroclinic Instability Caused by Enhanced Tidal Mixing
- Winter Oceanographic Conditions in the Southwestern Part of the Okhotsk Sea and Their Relation to Sea Ice
- Interannual Variability of Sea Ice Area in the Sea of Okhotsk : Importance of Surface Heat Flux in Fall
- Surface Heat Budget of the Sea of Okhotsk during 1987-2001 and the Role of Sea Ice on it
- Thickness distribution, texture and stratigraphy, and a simple probabilistic model for dynamical thickening of sea ice in the southern Sea of Okhotsk
- RELATIONSHIP BETWEEN THE UPPER OCEAN AND SEA ICE DURING THE ANTARCTIC MELTING SEASON
- MESOSCALE ICE-OCEAN FEATURES IN THE MARGINAL ICE ZONE OFF SYOWA STATION OBSERVED IN NOAA AVHRR IMAGERY
- Preface
- Coastal Polynyas off East Queen Maud Land Observed from NOAA AVHRR Data
- Data of sea-ice cores obtained in Luzow-Holm Bay from 1990 to 1992 (JARE-31, -32) in the period of Japanese Antarctic Climate Research(Glaciology 24)
- Oceanographic data in Luzow-Holm Bay of the Antarctic Climate Research Program from January 1991 to February 1992 (JARE-32)(Oceanography 15)
- Two-layer model of wind-driven circulation in the Antarctic Ocean
- In-situ ice and meteorological observations in the southern Sea of Okhotsk in 2001 winter: ice structure, snow on ice, surface temperature, and optical environments
- MOS-1/1b MESSR Observations of the Antarctic Sea Ice: Ice Bands and Ice Streamers
- SOME FEATURES OF THE ANTARCTIC SEA ICE OBSERVED FROM MESSR IMAGES
- Seasonal Variations of Water Masses and Sea Level in the Southwestern Part of the Okhotsk Sea
- Particle Tracking Experiments on a Model of the Okhotsk Sea : Toward Oil Spill Simulation
- Barotropic Response of the Sea of Okhotsk to Wind Forcing
- Wind Filds over Funka Bay and Their Effect on Water Circulation in the Bay
- Sea-ice drift characteristics revealed by measurement of acoustic Doppler current profiler and ice-profiling sonar off Hokkaido in the Sea of Okhotsk
- Volume Transport in the Soya Strait during 2006-2008
- Sea-ice retreat in the Sea of Okhotsk and the ice-ocean albedo feedback effect on it