jinwon kim - Academia.edu (original) (raw)

Papers by jinwon kim

Research paper thumbnail of A seasonal precipitation an stream flow hindcast and prediction study in the Western United States during the 1997/98 Winter Season using a dynamic downscaling system

Journal of Hydrometeorology, 2000

... Seasonal prediction greatly underestimated (overestimated) snowfall over the northern Califor... more ... Seasonal prediction greatly underestimated (overestimated) snowfall over the northern California region (northern Cascades ... Snowfall maxima in central Arizona also were underestimated ... Even though prediction of the DJF-total precipitation was successful, spatial and temporal ...

Research paper thumbnail of Numerical Prediction of Precipitation and River Flow over the Russian River Watershed during the January 1995 California Storms

Bulletin of The American Meteorological Society, 1996

Precipitation and river flow during a January 1995 flood event over the Russian River watershed i... more Precipitation and river flow during a January 1995 flood event over the Russian River watershed in the northern Coastal Range of California were simulated using the University of California Lawrence Livermore National Laboratory`s Coupled Atmosphere-River Flow Simulation (CARS) System. The CARS System unidirectionally links a primitive equation atmospheric mesoscale model to a physically based, fully distributed hydrologic model by employing

Research paper thumbnail of Downscaled climate and streamflow study of the southwestern United States

Journal of The American Water Resources Association, 1999

ABSTRACT: Downscaling coarse resolution climate data to scales that are useful for impact assessm... more ABSTRACT: Downscaling coarse resolution climate data to scales that are useful for impact assessment studies is receiving increased attention. Basin-scale hydrologic processes and other local climate impacts related to water resources such as reservoir management, crop and forest productivity, and ecosystem response require climate information at scales that are much finer than current and future GCM resolutions. The Regional Climate System Model (RCSM) is a dynamic downscaling system that has been used since 1994 for short-term precipitation and streamflow predictions and seasonal hindcast analysis with good skill. During the 1997–1998 winter, experimental seasonal forecasts were made in collaboration with the NOAA Climate Prediction Center and UCLA with promising results. Preliminary studies of a control and 2°CO2 perturbation for the southwestern U.S. have been performed.

Research paper thumbnail of Geostatistical Mapping of Precipitation from Rain Gauge Data Using Atmospheric and Terrain Characteristics

Journal of Applied Meteorology, 2001

... Several forms of spatial interpolation (kriging), which differ in the degree of complexity of... more ... Several forms of spatial interpolation (kriging), which differ in the degree of complexity of the first-guess field, are considered for mapping the seasonal average of daily precipitation for the period from 1 November 1981 to 31 January 1982 over a region in northern California at 1 ...

Research paper thumbnail of Impacts of Increased Atmospheric CO2 on the Hydroclimate of theWestern United States

Journal of Climate, 2002

Regional-scale projections of climate change signals due to increases in atmospheric CO2 are gene... more Regional-scale projections of climate change signals due to increases in atmospheric CO2 are generated for the western United States using a regional climate model (RCM) nested within two global scenarios from a GCM. The downscaled control climate improved the local accuracy of the GCM results substantially. The downscaled control climate is reasonably close to the results of an 8-yr regional

Research paper thumbnail of Jupiter's main auroral oval observed with HST-STIS

Journal of Geophysical Research, 2003

An extended series of FUV images obtained on 7 days during winter 2000–2001, with fixed pointing,... more An extended series of FUV images obtained on 7 days during winter 2000–2001, with fixed pointing, yielded highly accurate tracking of emisson features as Jupiter rotated. They provided newly detailed measurements of the degree of corotation of auroral emissions and their variations with changing central meridian longitude. This 2-month data set provides a statistical average location of the auroral emission

Research paper thumbnail of Jupiter's polar auroral emissions

Journal of Geophysical Research, 2003

This paper reports a study of Jupiter's polar auroral emissions observed in an extended series of... more This paper reports a study of Jupiter's polar auroral emissions observed in an extended series of FUV images. They were obtained on seven days, during winter 2000-2001, with the STIS camera on board the Hubble Space Telescope. The fixed pointing yielded highly accurate and consistent tracking of emisson features as Jupiter rotated, allowing the analysis of the auroral morphology and brightness on timescales ranging from seconds to days. In the Northern Hemisphere, the polar emissions, located poleward of the main oval, usually represent about 30% of the total auroral FUV emitted power. They show emission bursts lasting ˜100 s, while the main oval remains stable. The polar region may be divided into three regions apparently fixed in magnetic local time: the dawnside dark region, the poleward swirl region, and the duskside active region in which flares and arc-like features are observed. Each of these UV emission regions can be identified with its infrared counterpart and probably relates to a different sector of the Dungey cycle or Vasyliunas cycle plasma flows.

Research paper thumbnail of Jupiter's polar auroral emissions

Journal of Geophysical Research, 2003

1] This paper reports a study of Jupiter's polar auroral emissions observed in an extended series... more 1] This paper reports a study of Jupiter's polar auroral emissions observed in an extended series of FUV images. They were obtained on seven days, during winter 2000-2001, with the STIS camera on board the Hubble Space Telescope. The fixed pointing yielded highly accurate and consistent tracking of emisson features as Jupiter rotated, allowing the analysis of the auroral morphology and brightness on timescales ranging from seconds to days. In the Northern Hemisphere, the polar emissions, located poleward of the main oval, usually represent about 30% of the total auroral FUV emitted power. They show emission bursts lasting $100 s, while the main oval remains stable. The polar region may be divided into three regions apparently fixed in magnetic local time: the dawnside dark region, the poleward swirl region, and the duskside active region in which flares and arc-like features are observed. Each of these UV emission regions can be identified with its infrared counterpart and probably relates to a different sector of the Dungey cycle or Vasyliunas cycle plasma flows.

Research paper thumbnail of Jupiter's main auroral oval observed with HST-STIS

Journal of Geophysical Research, 2003

An extended series of FUV images obtained on 7 days during winter 2000–2001, with fixed pointing,... more An extended series of FUV images obtained on 7 days during winter 2000–2001, with fixed pointing, yielded highly accurate tracking of emisson features as Jupiter rotated. They provided newly detailed measurements of the degree of corotation of auroral emissions and their variations with changing central meridian longitude. This 2-month data set provides a statistical average location of the auroral emission

Research paper thumbnail of Morphological differences between Saturn's ultraviolet aurorae and those of Earth and Jupiter

Research paper thumbnail of A seasonal precipitation an stream flow hindcast and prediction study in the Western United States during the 1997/98 Winter Season using a dynamic downscaling system

Journal of Hydrometeorology, 2000

... Seasonal prediction greatly underestimated (overestimated) snowfall over the northern Califor... more ... Seasonal prediction greatly underestimated (overestimated) snowfall over the northern California region (northern Cascades ... Snowfall maxima in central Arizona also were underestimated ... Even though prediction of the DJF-total precipitation was successful, spatial and temporal ...

Research paper thumbnail of Numerical Prediction of Precipitation and River Flow over the Russian River Watershed during the January 1995 California Storms

Bulletin of The American Meteorological Society, 1996

Precipitation and river flow during a January 1995 flood event over the Russian River watershed i... more Precipitation and river flow during a January 1995 flood event over the Russian River watershed in the northern Coastal Range of California were simulated using the University of California Lawrence Livermore National Laboratory`s Coupled Atmosphere-River Flow Simulation (CARS) System. The CARS System unidirectionally links a primitive equation atmospheric mesoscale model to a physically based, fully distributed hydrologic model by employing

Research paper thumbnail of Downscaled climate and streamflow study of the southwestern United States

Journal of The American Water Resources Association, 1999

ABSTRACT: Downscaling coarse resolution climate data to scales that are useful for impact assessm... more ABSTRACT: Downscaling coarse resolution climate data to scales that are useful for impact assessment studies is receiving increased attention. Basin-scale hydrologic processes and other local climate impacts related to water resources such as reservoir management, crop and forest productivity, and ecosystem response require climate information at scales that are much finer than current and future GCM resolutions. The Regional Climate System Model (RCSM) is a dynamic downscaling system that has been used since 1994 for short-term precipitation and streamflow predictions and seasonal hindcast analysis with good skill. During the 1997–1998 winter, experimental seasonal forecasts were made in collaboration with the NOAA Climate Prediction Center and UCLA with promising results. Preliminary studies of a control and 2°CO2 perturbation for the southwestern U.S. have been performed.

Research paper thumbnail of Geostatistical Mapping of Precipitation from Rain Gauge Data Using Atmospheric and Terrain Characteristics

Journal of Applied Meteorology, 2001

... Several forms of spatial interpolation (kriging), which differ in the degree of complexity of... more ... Several forms of spatial interpolation (kriging), which differ in the degree of complexity of the first-guess field, are considered for mapping the seasonal average of daily precipitation for the period from 1 November 1981 to 31 January 1982 over a region in northern California at 1 ...

Research paper thumbnail of Impacts of Increased Atmospheric CO2 on the Hydroclimate of theWestern United States

Journal of Climate, 2002

Regional-scale projections of climate change signals due to increases in atmospheric CO2 are gene... more Regional-scale projections of climate change signals due to increases in atmospheric CO2 are generated for the western United States using a regional climate model (RCM) nested within two global scenarios from a GCM. The downscaled control climate improved the local accuracy of the GCM results substantially. The downscaled control climate is reasonably close to the results of an 8-yr regional

Research paper thumbnail of Jupiter's main auroral oval observed with HST-STIS

Journal of Geophysical Research, 2003

An extended series of FUV images obtained on 7 days during winter 2000–2001, with fixed pointing,... more An extended series of FUV images obtained on 7 days during winter 2000–2001, with fixed pointing, yielded highly accurate tracking of emisson features as Jupiter rotated. They provided newly detailed measurements of the degree of corotation of auroral emissions and their variations with changing central meridian longitude. This 2-month data set provides a statistical average location of the auroral emission

Research paper thumbnail of Jupiter's polar auroral emissions

Journal of Geophysical Research, 2003

This paper reports a study of Jupiter's polar auroral emissions observed in an extended series of... more This paper reports a study of Jupiter's polar auroral emissions observed in an extended series of FUV images. They were obtained on seven days, during winter 2000-2001, with the STIS camera on board the Hubble Space Telescope. The fixed pointing yielded highly accurate and consistent tracking of emisson features as Jupiter rotated, allowing the analysis of the auroral morphology and brightness on timescales ranging from seconds to days. In the Northern Hemisphere, the polar emissions, located poleward of the main oval, usually represent about 30% of the total auroral FUV emitted power. They show emission bursts lasting ˜100 s, while the main oval remains stable. The polar region may be divided into three regions apparently fixed in magnetic local time: the dawnside dark region, the poleward swirl region, and the duskside active region in which flares and arc-like features are observed. Each of these UV emission regions can be identified with its infrared counterpart and probably relates to a different sector of the Dungey cycle or Vasyliunas cycle plasma flows.

Research paper thumbnail of Jupiter's polar auroral emissions

Journal of Geophysical Research, 2003

1] This paper reports a study of Jupiter's polar auroral emissions observed in an extended series... more 1] This paper reports a study of Jupiter's polar auroral emissions observed in an extended series of FUV images. They were obtained on seven days, during winter 2000-2001, with the STIS camera on board the Hubble Space Telescope. The fixed pointing yielded highly accurate and consistent tracking of emisson features as Jupiter rotated, allowing the analysis of the auroral morphology and brightness on timescales ranging from seconds to days. In the Northern Hemisphere, the polar emissions, located poleward of the main oval, usually represent about 30% of the total auroral FUV emitted power. They show emission bursts lasting $100 s, while the main oval remains stable. The polar region may be divided into three regions apparently fixed in magnetic local time: the dawnside dark region, the poleward swirl region, and the duskside active region in which flares and arc-like features are observed. Each of these UV emission regions can be identified with its infrared counterpart and probably relates to a different sector of the Dungey cycle or Vasyliunas cycle plasma flows.

Research paper thumbnail of Jupiter's main auroral oval observed with HST-STIS

Journal of Geophysical Research, 2003

An extended series of FUV images obtained on 7 days during winter 2000–2001, with fixed pointing,... more An extended series of FUV images obtained on 7 days during winter 2000–2001, with fixed pointing, yielded highly accurate tracking of emisson features as Jupiter rotated. They provided newly detailed measurements of the degree of corotation of auroral emissions and their variations with changing central meridian longitude. This 2-month data set provides a statistical average location of the auroral emission

Research paper thumbnail of Morphological differences between Saturn's ultraviolet aurorae and those of Earth and Jupiter