搜索结果: 1-15 共查到“大气科学 long-term”相关记录48条 . 查询时间(0.516 秒)
On the response of the European climate to solar/geomagnetic long-term activity
European surface air temperature climate variability solar and geomagnetic activity solar-terrestrial interaction
2015/8/28
The response of the European climate to long-term solar/geomagnetic activity is investigated using surface-air temperature and solar/geomagnetic indices. A set of 21 time series of air temperatures me...
CORAL REVEALS LONG-TERM LINK BETWEEN PACIFIC WINDS, GLOBAL CLIMATE（图）
CORAL LONG-TERM LINK PACIFIC WINDS, GLOBAL CLIMATE
2014/12/30
The study, led by scientists at the National Center for Atmospheric Research (NCAR) and the University of Arizona (UA), uses a novel method of analyzing chemical changes in coral to show that weak tro...
Impact of the East Asian summer monsoon on long-term variations in the acidity of summer precipitation in Central China
the East Asian summer monsoon long-term variations the acidity of summer precipitation Central China
2011/2/25
The acidity of precipitation has been observed at stations of the Acid Rain Monitoring Network run by the China Meteorological Administration (CMA-ARMN) since 1992. Previous studies have shown that di...
First long-term study of particle number size distributions and new particle formation events of regional aerosol in the North China Plain
particle number size new particle formation regional aerosol the North China Plain
2011/2/25
Atmospheric particle number size distributions (size range 0.003–10 μm) were measured between March 2008 and August 2009 at Shangdianzi (SDZ), a rural research station in the North China Plain. These ...
Solar irradiance at the earth's surface: long-term behavior observed at the South Pole
the earth's surface long-term behavior the South Pole
2011/2/25
This research examines a 17-year database of UV-A (320–400 nm) and visible (400–600 nm) solar irradiance obtained by a scanning spectroradiometer located at the South Pole. The goal is to define the v...
An analysis of long-term regional-scale ozone simulations over the Northeastern United States: variability and trends
long-term regional-scale ozone the Northeastern United States variability and trends
2011/2/24
This study presents the results from two sets of 18-year air quality simulations over the Northeastern US performed with a regional photochemical modeling system. These two simulations utilize differe...
Long-term record of aerosol optical properties and chemical composition from a high-altitude site (Manora Peak) in Central Himalaya
aerosol optical properties chemical composition a high-altitude site (Manora Peak) Central Himalaya
2010/12/28
A long-term study, conducted from February 2005 to July 2008, involving chemical composition and optical properties of ambient aerosols from a high-altitude site (Manora Peak: 29.4° N, 79.5° E, ~1950 ...
Formic acid above the Jungfraujoch during 1985–2007: observed variability, seasonality, but no long-term background evolution
Formic acid the Jungfraujoch 1985–2007 background evolution
2010/11/3
This paper reports on daytime total vertical column abundances of formic acid (HCOOH) above the Northern mid-latitude, high altitude Jungfraujoch station (Switzerland; 46.5° N, 8.0° E, 3580 m alt.). T...
Extreme events in total ozone over Arosa – Part 2: Fingerprints of atmospheric dynamics and chemistry and effects on mean values and long-term changes
Extreme events total ozone Arosa atmospheric dynamics and chemistry and effects mean values long-term changes
2010/11/3
In this study the frequency of days with extreme low (termed ELOs) and extreme high (termed EHOs) total ozone values and their influence on mean values and trends are analyzed for the world's longest ...
Long-term trends of black carbon and sulphate aerosol in the Arctic: changes in atmospheric transport and source region emissions
black carbon sulphate aerosol the Arctic atmospheric transport source region emissions
2010/10/11
To reveal the contribution of different source regions on these trends, we used a cluster analysis of the output of the Lagrangian particle dispersion model FLEXPART run backward in time from the meas...
Long term measurements of sulfur dioxide, nitrogen dioxide, ammonia, nitric acid and ozone in Africa using passive samplers
sulfur dioxide nitrogen dioxide ammonia nitric acid ozone Africa passive samplers
2010/8/16
In this paper we present the long term monitoring of ambient gaseous concentrations within the framework of the IDAF (IGAC-DEBITS-AFRICA) program. This study proposes for the first time an analysis of...
Comparison of a global-climate model to a cloud-system resolving model for the long-term response of thin stratocumulus clouds to preindustrial and present-day aerosol conditions
a global-climate model a cloud-system resolving model thin stratocumulus clouds present-day aerosol conditions
2010/8/16
The response of a case of thin, warm marine-boundary-layer (MBL) clouds to preindustrial (PI) and present-day (PD) conditions is simulated by a cloud-system resolving model (CSRM). Here, both the aero...
Validation of the GRAPE single view aerosol retrieval for ATSR-2 and insights into the long term global AOD trend over the ocean
the GRAPE single ATSR-2 the long term global AOD the ocean
2010/8/13
The Global Retrieval of ATSR Cloud Parameters and Evaluation (GRAPE) project has produced a global data-set of cloud and aerosol properties from the Along Track Scanning Radiometer-2 (ATSR-2) instrume...
Trends in long-term gaseous mercury observations in the Arctic and effects of temperature and other atmospheric conditions
long-term gaseous mercury observations the Arctic temperature and other atmospheric conditions
2010/8/13
Gaseous elemental mercury (GEM) measurements at Alert, Canada, from 1995 to 2007 were analyzed for statistical time trends and for correlations with meteorological and climate data. A significant decr...
The global SF6 source inferred from long-term high precision atmospheric measurements and its comparison with emission inventories
the global SF6 source long-term high precision atmospheric measurements emission inventories
2010/8/12
Emissions of sulphur hexafluoride (SF6), one of the strongest greenhouse gases on a per molecule basis, are targeted to be collectively reduced under the Kyoto Protocol. Because of its long atmospheri...