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RISWater Vapor Feedback in the Tropical Upper Troposphere: Model Results and Observations
Publisher: American Meteorological Society
Abstract: The sensitivity of water vapor in the tropical upper troposphere to changes in surface temperature is examined using a single-column, radiative?convective model that includes couplings between the moistening effects of ...
A Model for Transport across the Tropical Tropopause
Publisher: American Meteorological Society
Abstract: A model of convective and advective transport across the tropical tropopause is described. In this model overshooting convective turrets inject dehydrated tropospheric air into a tropical ?tropopause layer? (TTL) bounded ...
Multimodel Analysis of the Water Vapor Feedback in the Tropical Upper Troposphere
Publisher: American Meteorological Society
Abstract: Relationships between the mean humidity in the tropical upper troposphere and tropical sea surface temperatures in 17 coupled ocean?atmosphere global climate models were investigated. This analysis builds on a prior study ...
Convective Mixing near the Tropical Tropopause: Insights from Seasonal Variations
Publisher: American Meteorological Society
Abstract: It has been suggested that convection remains important in the budget of water vapor up to the tropical tropopause or even higher. But observed seasonal variations of CO2 and water vapor in the lower stratosphere, and their ...
An Assessment of Climate Feedbacks in Observations and Climate Models Using Different Energy Balance Frameworks
Publisher: American Meteorological Society
Five-Year Climatology of Midtroposphere Dry Air Layers in Warm Tropical Ocean Regions as Viewed by AIRS/Aqua
Publisher: American Meteorological Society
Abstract: Many studies have commented on the presence of midtroposphere dry air layers in normally moist areas of the warm-pool region in the tropical western Pacific Ocean. In this study, 5 yr of relative humidity (RH) observations ...
Test of the Fixed Anvil Temperature Hypothesis
Publisher: American Meteorological Society
Abstract: he fixed anvil temperature (FAT) hypothesis is examined based on the Aqua Moderate Resolution Imaging Spectroradiometer (MODIS)-based cloud-top temperature (CTT) in conjunction with the tropical atmospheric profiles and ...
An Analysis of the Short-Term Cloud Feedback Using MODIS Data
Publisher: American Meteorological Society
Abstract: he cloud feedback in response to short-term climate variations is estimated from cloud measurements combined with offline radiative transfer calculations. The cloud measurements are made by the Moderate Resolution Imaging ...
Study of Horizontally Oriented Ice Crystals with CALIPSO Observations and Comparison with Monte Carlo Radiative Transfer Simulations
Publisher: American Meteorological Society
Abstract: ata from the Cloud?Aerosol Lidar with Orthogonal Polarization (CALIOP) indicate that horizontally oriented ice crystals (HOIC) occur frequently in both ice and mixed-phase clouds. When compared with the case for clouds ...
Maintenance of Lower Tropospheric Temperature Inversion in the Saharan Air Layer by Dust and Dry Anomaly
Publisher: American Meteorological Society
Abstract: The role of Saharan dust and dry anomaly in maintaining the temperature inversion in the Saharan air layer (SAL) is investigated. The dust aerosol optical thickness (AOT) in the SAL is inferred from the measurements taken ...