Atmospheric and Environmental Remote Sensing Data Processing and Utilization: an End-to-End System Perspective, 2004
ABSTRACT Five years of rainfall data from the Tropical Rainfall Measuring Mission are now availab... more ABSTRACT Five years of rainfall data from the Tropical Rainfall Measuring Mission are now available for use. This paper surveys comparisons of these rain rate data with buoy-based estimates over the Tropical Pacific and with simulations with the CCM3, a general circulation model of atmospheric circulation. We examine both the seasonal and diurnal cycles in the data. The TRMM data agree reasonably well with the buoy data for both the seasonal and diurnal cycles. While the data generally agree with the simulations, there are some discrepancies which can be attributed to model failures.
The Tropical Rainfall Measuring Mission (TRMM) satellite was launched on 27 November 1997, and da... more The Tropical Rainfall Measuring Mission (TRMM) satellite was launched on 27 November 1997, and data from all the instruments first became available approximately 30 days after the launch. Since then, much progress has been made in the calibration of the sensors, the ...
Numerous studies have shown that climate has varied between ice-free and glaciated states, with t... more Numerous studies have shown that climate has varied between ice-free and glaciated states, with transitions often marked by abrupt steps. We summarize some modeling studies that have attempted to explain elements of the long-term trend and discuss a particular model for abrupt transitions that involves instabilities due to albedo discontinuities at the snow/ice edge.
... OF CLIMATE AND APPLIED METEOROLOGY Volume 23 Infrared Parameterization and Simple Climate Mod... more ... OF CLIMATE AND APPLIED METEOROLOGY Volume 23 Infrared Parameterization and Simple Climate Models David A. Short and Gerald R. North ... to be well correlated for zonally averaged annual mean conditions (Budyko, 1969; Sellers, 1969; Oerlemans and Van den Dool ...
A simple climate model has been used to calculate the effect of past changes in the land-sea dist... more A simple climate model has been used to calculate the effect of past changes in the land-sea distribution on the seasonal cycle of temperatures during the last 100 million years. Modeled summer temperatures decreased over Greenland by more than 10 degrees C and over Antarctica by 5 degrees to 8 degrees C. For the last 80 million years, this thermal response is comparable in magnitude to estimated atmospheric carbon dioxide effects. Analysis of paleontological data provides some support for the proposed hypothesis that large changes due to seasonality may have sometimes resulted in an ice-free state due to high summer temperature rather than year-round warmth. Such "cool" non-glacials may have prevailed for as much as one-third of the last 100 million years.
Jgr Journal of Geophysical Research Part D Atmospheres, 1990
The parameters of the multidimensional precipitation model proposed by Waymire et al. (1984) are ... more The parameters of the multidimensional precipitation model proposed by Waymire et al. (1984) are estimated using the areal-averaged radar measurements of precipitation of the Global Atlantic Tropical Experiment (GATE) data set. The procedure followed was the fitting of the first- and second-order moments at different aggregation scales by nonlinear regression techniques. The numerical estimates of the parameters using different subsets
Atmospheric and Environmental Remote Sensing Data Processing and Utilization: an End-to-End System Perspective, 2004
ABSTRACT Five years of rainfall data from the Tropical Rainfall Measuring Mission are now availab... more ABSTRACT Five years of rainfall data from the Tropical Rainfall Measuring Mission are now available for use. This paper surveys comparisons of these rain rate data with buoy-based estimates over the Tropical Pacific and with simulations with the CCM3, a general circulation model of atmospheric circulation. We examine both the seasonal and diurnal cycles in the data. The TRMM data agree reasonably well with the buoy data for both the seasonal and diurnal cycles. While the data generally agree with the simulations, there are some discrepancies which can be attributed to model failures.
The Tropical Rainfall Measuring Mission (TRMM) satellite was launched on 27 November 1997, and da... more The Tropical Rainfall Measuring Mission (TRMM) satellite was launched on 27 November 1997, and data from all the instruments first became available approximately 30 days after the launch. Since then, much progress has been made in the calibration of the sensors, the ...
Numerous studies have shown that climate has varied between ice-free and glaciated states, with t... more Numerous studies have shown that climate has varied between ice-free and glaciated states, with transitions often marked by abrupt steps. We summarize some modeling studies that have attempted to explain elements of the long-term trend and discuss a particular model for abrupt transitions that involves instabilities due to albedo discontinuities at the snow/ice edge.
... OF CLIMATE AND APPLIED METEOROLOGY Volume 23 Infrared Parameterization and Simple Climate Mod... more ... OF CLIMATE AND APPLIED METEOROLOGY Volume 23 Infrared Parameterization and Simple Climate Models David A. Short and Gerald R. North ... to be well correlated for zonally averaged annual mean conditions (Budyko, 1969; Sellers, 1969; Oerlemans and Van den Dool ...
A simple climate model has been used to calculate the effect of past changes in the land-sea dist... more A simple climate model has been used to calculate the effect of past changes in the land-sea distribution on the seasonal cycle of temperatures during the last 100 million years. Modeled summer temperatures decreased over Greenland by more than 10 degrees C and over Antarctica by 5 degrees to 8 degrees C. For the last 80 million years, this thermal response is comparable in magnitude to estimated atmospheric carbon dioxide effects. Analysis of paleontological data provides some support for the proposed hypothesis that large changes due to seasonality may have sometimes resulted in an ice-free state due to high summer temperature rather than year-round warmth. Such "cool" non-glacials may have prevailed for as much as one-third of the last 100 million years.
Jgr Journal of Geophysical Research Part D Atmospheres, 1990
The parameters of the multidimensional precipitation model proposed by Waymire et al. (1984) are ... more The parameters of the multidimensional precipitation model proposed by Waymire et al. (1984) are estimated using the areal-averaged radar measurements of precipitation of the Global Atlantic Tropical Experiment (GATE) data set. The procedure followed was the fitting of the first- and second-order moments at different aggregation scales by nonlinear regression techniques. The numerical estimates of the parameters using different subsets
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Papers by Gerald R. North