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On the Use of “Inflation” in Statistical Downscaling
Publisher: American Meteorological Society
Abstract: The technique of ?inflating? in downscaling, which makes the downscaled climate variable have the right variance, is based on the assumption that all local variability can be traced back to large-scale variability. For ...
Modeling the Low-Frequency Sea Surface Temperature Variability in the North Pacific
Publisher: American Meteorological Society
Abstract: The question of whether the large-scale low-frequency sea surface temperature (SST) variability in the North Pacific can be interpreted as a response to large-scale wind anomalies is studied by an ocean general circulation ...
A Spatial Two-Dimensional Discrete Filter for Limited-Area-Model Evaluation Purposes
Publisher: American Meteorological Society
Abstract: A two-dimensional discrete spatial filter was developed. It serves as a means to classify meteorological fields on a limited-area grid according to their spatial dimensions by filtering certain wavenumber ranges. Thereby ...
Verification of General Circulation Models Applied to the Hamburg University GCM. Part I: Test of Individual Climate States
Publisher: American Meteorological Society
Abstract: One objective of general circulation models is to simulate, e.g., a ?January? which is not distinguishable from observed Januaries. A strategy to verify an individual simulated state is proposed. Its main elements are: ...
The Analog Method as a Simple Statistical Downscaling Technique: Comparison with More Complicated Methods
Publisher: American Meteorological Society
Abstract: The derivation of local scale information from integrations of coarse-resolution general circulation models (GCM) with the help of statistical models fitted to present observations is generally referred to as statistical ...
Statistics of “Synoptic Circulation Weather” in the North Sea as Derived from a Multiannual OGCM Simulation
Publisher: American Meteorological Society
Abstract: A 15-yr simulation of an ocean general circulation model, exposed to atmospheric forcing as provided by the ECMWF reanalysis 1979?93, is analyzed with respect to the statistics of the surface circulation of the North Sea ...
A Dynamical Downscaling Case Study for Typhoons in Southeast Asia Using a Regional Climate Model
Publisher: American Meteorological Society
Abstract: This study explores the possibility of reconstructing the weather of Southeast Asia for the last decades using an atmospheric regional climate model, the Climate version of the Lokal-Modell (CLM). For this purpose global ...
Climate Science: An Empirical Example of Postnormal Science
Publisher: American Meteorological Society
Abstract: This paper addresses the views regarding the certainty and uncertainty of climate science knowledge held by contemporary climate scientists. More precisely, it addresses the extension of this knowledge into the social and ...
Evaluation of an Air Pressure–Based Proxy for Storm Activity
Publisher: American Meteorological Society
Abstract: early percentiles of geostrophic wind speeds serve as a widely used proxy for assessing past storm activity. Here, daily geostrophic wind speeds are derived from a geographical triangle of surface air pressure measurements ...
Regime-Dependent Autoregressive Time Series Modeling of the Southern Oscillation
Publisher: American Meteorological Society
Abstract: The class of ?regime dependent autoregressive? time series models (RAMs) is introduced. These nonlinear models describe variations of the moments of nonstationary time series by allowing parameter values to change with the ...