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RISVariations in Low Cloud Cover over the United States during the Second Half of the Twentieth Century
Publisher: American Meteorological Society
Abstract: Several changes in U.S. observational practice [in particular, the introduction of the Automated Surface Observing System (ASOS) in the early 1990s] have led to a challenging heterogeneity of time series of most ground-based ...
Prolonged Dry Episodes over the Conterminous United States: New Tendencies Emerging during the Last 40 Years
Publisher: American Meteorological Society
Abstract: A disproportionate increase in precipitation coming from intense rain events, in the situation of general warming (thus, an extension of the vegetation period with intensive transpiration), and an insignificant change in ...
The Accuracy of United States Precipitation Data
Publisher: American Meteorological Society
Abstract: Precipitation measurements in the United States (as well as all other countries) are adversely affected by the gauge undercatch bias of point precipitation measurements. When these measurements are used to obtain areas ...
European Hot Summers Associated with a Reduction of Cloudiness
Publisher: American Meteorological Society
Abstract: pronounced summer warming is observed in Europe since the 1980s that has been accompanied by an increase in the occurrence of heat waves. Water deficit that strongly reduces surface latent cooling is a widely accepted ...
Observing Climate at High Elevations Using United States Climate Reference Network Approaches
Publisher: American Meteorological Society
Abstract: he U.S. Climate Reference Network (USCRN) was deployed between 2001 and 2008 for the purpose of yielding high-quality and temporally stable in situ climate observations in pristine environments over the twenty-first century. ...
Variability and Trends of Total Precipitation and Snowfall over the United States and Canada
Publisher: American Meteorological Society
Abstract: The biases and large-scale inhomogeneities in the time series of measured precipitation and snowfall over the United States and Canada are discussed and analyzed. The spatial statistical characteristics of monthly and ...
Assessing Surface–Atmosphere Interactions Using Former Soviet Union Standard Meteorological Network Data. Part I: Method
Publisher: American Meteorological Society
Abstract: The turbulent heat fluxes at the soil surface are not observed (or poorly observed) by existing observational systems. This affects the ability to reliably predict the consequences of climate changes on the hydrologic ...
The Influence of Large-Scale Climate Variability on Winter Maximum Daily Precipitation over North America
Publisher: American Meteorological Society
Abstract: The generalized extreme value (GEV) distribution is fitted to winter season daily maximum precipitation over North America, with indices representing El Niño?Southern Oscillation (ENSO), the Pacific decadal oscillation ...
An Evaluation of the United States Standard 8-in. Nonrecording Raingage at the Valdai Polygon, Russia
Publisher: American Meteorological Society
Abstract: A unique set of data from Valdai, Russia, (previously unreported in the United States) is used to evaluate the ubiquitous standard 8-in.-diameter raingage that has been used for over 100 years at tens of thousands of United ...
Recent Changes in Cloud-Type Frequency and Inferred Increases in Convection over the United States and the Former USSR
Publisher: American Meteorological Society
Abstract: Significant changes and a general redistribution in the frequencies of various cloud types have been observed during the past 40?50 years over the midlatitude land areas of the Northern Hemisphere. This is evident for North ...