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Estimation of Spatial Degrees of Freedom of a Climate Field
Publisher: American Meteorological Society
Abstract: This paper analyzes four methods for estimating the spatial degrees of freedom (dof) of a climate field: the ?2 method, the Z method, the S method, and the B method. The results show that the B method provides the most ...
Northern Hemisphere Climatology and Trends of Statistical Moments Documented from GHCN-Daily Surface Air Temperature Station Data from 1950 to 2010
Publisher: American Meteorological Society
Abstract: he first four statistical moments and their trends are calculated for the average daily surface air temperature (SAT) from 1950 to 2010 using the Global Historical Climatology Network?Daily station data for each season ...
The Effects of Gridding Algorithms on the Statistical Moments and Their Trends of Daily Surface Air Temperature
Publisher: American Meteorological Society
Abstract: his paper explores the effects from averaging weather station data onto a grid on the first four statistical moments of daily minimum and maximum surface air temperature (SAT) anomalies over the entire globe. The Global ...
Uncertainties, Trends, and Hottest and Coldest Years of U.S. Surface Air Temperature since 1895: An Update Based on the USHCN V2 TOB Data
Publisher: American Meteorological Society
Abstract: his paper estimates the sampling error variances of gridded monthly U.S. Historical Climatology Network, version 2 (USHCN V2), time-of-observation-biases (TOB)-adjusted data. The analysis of mean surface air temperature ...
Interpolation of 1961–97 Daily Temperature and Precipitation Data onto Alberta Polygons of Ecodistrict and Soil Landscapes of Canada
Publisher: American Meteorological Society
Abstract: Soil quality models developed for ecodistrict polygons (EDP) and the polygons of the soil landscapes of Canada (SLC) to monitor the concentration of soil organic matter require daily climate data as an important input. The ...
Sampling Errors in Rainfall Estimates by Multiple Satellites
Publisher: American Meteorological Society
Abstract: This paper examines the sampling characteristics of combining data collected by several low-orbiting satellites attempting to estimate the space?time average of rain rates. The several satellites can have different orbital ...
Superensemble Statistical Forecasting of Monthly Precipitation over the Contiguous United States, with Improvements from Ocean-Area Precipitation Predictors
Publisher: American Meteorological Society
Abstract: xtended precipitation forecasts, with leads of weeks to seasons, are valuable for planning water use and are produced by the U.S. National Weather Service. Forecast skill tends to be low and any skill improvement could be ...
An Improved Method for Analyzing Sparse and Irregularly Distributed SST Data on a Regular Grid: The Tropical Pacific Ocean
Publisher: American Meteorological Society
Abstract: An improved method for interpolating sparsely sampled climatological data onto a regular grid is shown. The method uses the spatial and temporal covariance of the field, along with the sparse data, to fill the full grid. ...
Spectral Approach to Optimal Estimation of the Global Average Temperature
Publisher: American Meteorological Society
Abstract: Making use of EOF analysis and statistical optimal averaging techniques, the problem of random sampling error in estimating the global average temperature by a network of surface stations has been investigated. The EOF ...
Optimal Estimation of Spherical Harmonic Components from a Sample with Spatially Nonuniform Covariance Statistics
Publisher: American Meteorological Society
Abstract: An optimal estimation technique is presented to estimate spherical harmonic coefficients. This technique is based on the minimization of the mean square error. This optimal estimation technique consists of computing optimal ...