搜索结果: 1-15 共查到“大气科学 Northern hemisphere”相关记录23条 . 查询时间(0.177 秒)
Monitoring freeze-up and break-up dates of Northern Hemisphere big lakes using passive microwave remote sensing data
Lake ice freeze-up date break-up date passive microwave brightness temperature
2013/9/2
Historic freeze-up and break-up dates of lakecan record the regional climate variability. Observations of lakeice from different regional or country's stations are inconsistent and their number was de...
Investigating the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle
Hemisphere ice sheets last glacial-interglacial cycle
2009/12/3
A 2.5-dimensional climate model of intermediate complexity, CLIMBER-2, fully coupled with the GREMLINS 3-D thermo-mechanical ice sheet model is used to simulate the evolution of major Northern Hemisph...
Late Glacial to Holocene environments in the present-day coldest region of the Northern Hemisphere inferred from a pollen record of Lake Billyakh, Verkhoyansk Mts, NE Siberia
Holocene environments Northern Hemisphere coldest region
2009/12/3
In this study, a radiocarbon-dated pollen record from Lake Billyakh (65°17' N, 126°47' E; 340 m a.s.l.) in the Verkhoyansk Mountains was used to reconstruct vegetation and climate change since about 1...
Empirically derived climate predictability over the extratropical northern hemisphere
climate predictability extratropical northern hemisphere
2009/11/16
A novel application of a technique developed from chaos theory is used in describing seasonal to interannual climate predictability over the Northern Hemisphere (NH). The technique is based on an empi...
Variability of residence time in the Tropical Tropopause Layer during Northern Hemisphere winter
residence time Tropical Tropopause Layer Northern Hemisphere winter
2009/9/22
For the first time the long-term interannual and spatial variability of residence time (τ) is presented for the TTL between 360 K and 400 K potential temperature (~14 to 18 km altitude). The analysis ...
Classification of Northern Hemisphere stratospheric ozone and water vapor profiles by meteorological regime
Northern Hemisphere stratospheric ozone water vapor profiles meteorological regime
2009/8/25
The subtropical and polar upper troposphere fronts and the polar vortex serve as the boundaries to divide the Northern Hemisphere into four meteorological regimes. These regimes are defined as (1) the...
Linking horizontal and vertical transports of biomass fire emissionsto the tropical Atlantic ozone paradox during the Northern Hemisphere winter season: climatology
biomass fire emissionsto tropical Atlantic ozone paradox Northern Hemisphere winter
2009/2/24
During the Northern hemisphere winter season, biomass burning is widespread in West Africa, yet the total tropospheric column ozone values (<30DU) over much of the Tropical Atlantic Ocean (15°N-5°S) ...
Polar stratospheric cloud observations by MIPAS on ENVISAT: detection method, validation and analysis of the northern hemisphere winter 2002/2003
Polar stratospheric cloud observations MIPAS ENVISAT northern hemisphere winter
2009/2/7
The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on ENVISAT has made extensive measurements of polar stratospheric clouds (PSCs) in the northern hemisphere winter 2002/2003. A PSC...
Seasonal dependence of peroxy radical concentrations at a Northern hemisphere marine boundary layer site during summer and winter: evidence for radical activity in winter
peroxy radical concentrations Northern hemisphere marine boundary layer site
2009/1/21
Peroxy radicals (HO2+Σ RO2) were measured at the Weybourne Atmospheric Observatory (52° N, 1° E), Norfolk using a PEroxy Radical Chemical Amplifier (PERCA) during the winter and summer of 2002. The pe...
The total ozone field separated into meteorological regimes – Part II: Northern Hemisphere mid-latitude total ozone trends
total ozone field meteorological regimes Northern Hemisphere mid-latitude ozone trends
2009/1/19
Previous studies have presented clear evidence that the Northern Hemisphere total ozone field can be separated into distinct regimes (tropical, midlatitude, polar, and arctic) the boundaries of which ...
Attribution of modeled atmospheric sulfate and SO2 in the Northern Hemisphere for June–July 1997
modeled atmospheric sulfate SO2 Northern Hemisphere
2009/1/16
Anthropogenic sulfate aerosol is a major contributor to shortwave radiative forcing of climate change by direct light scattering and by perturbing cloud properties and to local concentrations of atmos...
The initial dispersal and radiative forcing of a Northern Hemisphere mid-latitude super volcano: a model study
Northern Hemisphere mid-latitude volcano
2008/12/30
The chemistry climate model MAECHAM4/ CHEM with interactive and prognostic volcanic aerosol and ozone was used to study the initial dispersal and radiative forcing of a possible Northern Hemisphere mi...
Balloon-borne radiometer measurements of Northern Hemisphere mid-latitude stratospheric HNO3 profiles spanning 12 years
Balloon-borne radiometer measurements Northern Hemisphere mid-latitude stratospheric HNO3
2008/12/26
Low-resolution atmospheric thermal emission spectra collected by balloon-borne radiometers over the time span of 1990–2002 are used to retrieve vertical profiles of HNO3, CFC-11 and CFC-12 volume mix...
Observations and analysis of polar stratospheric clouds detected by POAM III and SAGE III during the SOLVE II/VINTERSOL campaign in the 2002/2003 Northern Hemisphere winter
polar stratospheric clouds POAM III SAGE III SOLVE II/VINTERSOL campaign
2008/12/9
The Polar Ozone and Aerosol Measurement and Stratospheric Aerosol and Gas Experiment instruments both observed high numbers of polar stratospheric clouds (PSCs) in the polar region during the second S...
Stationary planetary wave propagation in Northern Hemisphere winter – climatological analysis of the refractive index
Stationary planetary wave Northern Hemisphere winter climatological analysis refractive index
2008/11/27
The probability density on a height-meridional plane of negative refractive index squared f(nk2<0) is introduced as a new analysis tool to investigate the climatology of the propagation conditions of ...