Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Dian J. Gaffen"'
Autor:
Dian J. Gaffen, Julian X. L. Wang
Publikováno v:
Journal of Climate. 14:2833-2845
Climatological surface temperature and humidity variables for China are presented based on 6-hourly data from 196 stations for the period of 1961–90. Seasonal and annual means for daytime, nighttime, and the full day are shown. The seasonal cycle o
Publikováno v:
Journal of Geophysical Research: Atmospheres. 105:15509-15523
Interannual variability of the tropical tropopause is studied using long time series of radiosonde data, together with global tropopause analyses from the National Centers for Environmental Prediction (NCEP) reanalyses over 1957–1997. Comparisons f
Publikováno v:
Journal of Climate. 13:1776-1796
Radiosonde data have been used, and will likely continue to be used, for the detection of temporal trends in tropospheric and lower-stratospheric temperature. However, the data are primarily operational observations, and it is not clear that they are
Autor:
Benjamin D. Santer, James S. Boyle, David E. Parker, J. J. Hnilo, Karl E. Taylor, Douglas Nychka, Tom M. L. Wigley, Dian J. Gaffen
Publikováno v:
Journal of Geophysical Research: Atmospheres. 105:7337-7356
This paper examines trend uncertainties in layer-average free atmosphere temperatures arising from the use of different trend estimation methods. It also considers statistical issues that arise in assessing the significance of individual trends and o
Autor:
John R. Christy, James S. Boyle, Benjamin D. Santer, Dian J. Gaffen, Rebecca J. Ross, Nicholas E. Graham
Publikováno v:
Science. 287:1242-1245
Trends in global lower tropospheric temperature derived from satellite observations since 1979 show less warming than trends based on surface meteorological observations. Independent radiosonde observations of surface and tropospheric temperatures co
Autor:
Charles Doutriaux, Dian J. Gaffen, Erich Roeckner, Gerald A. Meehl, Michael Wehner, James S. Boyle, J. J. Hnilo, Monika Esch, Karl E. Taylor, Philip Jones, Tom M. L. Wigley, Lennart Bengtsson, Benjamin D. Santer
Publikováno v:
ResearcherID
Estimated global-scale temperature trends at Earth's surface (as recorded by thermometers) and in the lower troposphere (as monitored by satellites) diverge by up to 0.14°C per decade over the period 1979 to 1998. Accounting for differences in the s
Autor:
Rebecca J. Ross, Dian J. Gaffen
Publikováno v:
Journal of Climate. 12:811-828
Climatological annual and seasonal dewpoint, specific humidity, and relative humidity maps for the United States are presented using hourly data from 188 first-order weather stations for the period 1961‐90. Separate climatologies were calculated fo
Autor:
Patrick Minnis, J. Wilder, S. Thomas, Colin A. Johnson, Peter Stone, M. Fox, K. Beckford, Barbara E. Carlson, P. Etwarrow, Anne M. Thompson, Jean Lerner, Judith Lean, Gary L. Russell, Ken K. Lo, Jennifer A. Logan, James Hansen, M. P. McCormick, S. de Castro, Larry W. Thomason, Richard D. McPeters, K. Asamoah, Andrew A. Lacis, L. M. Druyan, Reto Ruedy, Joseph M. Zawodny, I. Ramberran, T. Ferede, Richard C. Willson, X. Jiang, B. Curran, E.A.M. Brown, Dian J. Gaffen, Ina Tegen, Philip B. Russell, S. Borenstein, J. Glascoe, A. Luckett, Ron L. Miller, S. M. Hollandsworth, Brian Cairns, Howard R. Gordon, N. Lawrence, Makiko Sato
Publikováno v:
Journal of Geophysical Research: Atmospheres. 102:25679-25720
We investigate the roles of climate forcings and chaos (unforced variability) in climate change via ensembles of climate simulations in which we add forcings one by one. The experiments suggest that most interannual climate variability in the period
Publikováno v:
Journal of Climate. 10:1648-1661
Simulations of humidity from 28 general circulation models for the period 1979-88 from the Atmospheric Model Intercomparison Project are compared with observations from radiosondes over North America and the globe and with satellite microwave observa
Publikováno v:
Journal of Climate. 7:304-308
Mean layer virtual temperature estimates, based on geopotential height measurements, form the basis for one approach being used to monitor changes in upper-air temperature. However, virtual temperature is a function of atmospheric moisture content as