North american regional reanalysis

TL;DR: In this article, a manual synoptic typing is performed on 50 extreme (>33.78 mm during a 48-hour period) precipitation event category, using two separate methodologies to partition events.

TL;DR: In this article, in-kind support for analytical costs and logistics was provided by Environment and Climate Change Canada via a Grants and Contributions Agreement and by InnoTech Alberta via an Internal Investment Grant.

Abstract: While regional‐ to hemispheric‐scale oscillations in oceanographic and atmospheric variables have long been known to have teleconnective impacts on the surface weather at distant locations, the impacts of these teleconnections and their interactions on multivariate weather types (WTs) are relatively under‐researched. Using a recently developed gridded weather typing classification (GWTC) and a self‐organizing maps‐based clustering of five different teleconnection indices, this research aims to explore the impacts of teleconnections on surface weather in the United States and Canada. Individual teleconnections have a predictable impact on GWTC WTs, with the Pacific/North American pattern, the Western Pacific (WP) pattern and the North Atlantic Oscillation showing the most widespread significant correlations with cool and warm WTs, in agreement with previous research. While many teleconnection clusters are dominated by one teleconnection's WT correlations, certain clusters reveal surprising regional‐ to continental‐scale impacts considering many teleconnections are in a relatively neutral phase. Furthermore, some expected impacts of the Southern Oscillation Index and WP are offset when considered in tandem with neutral phases of the other teleconnections examined. Overall, the clustering results highlight the importance of examining multiple teleconnections simultaneously when researching teleconnection impacts on surface weather and making statistically based monthly‐ to seasonal‐range climate projections.

TL;DR: This paper uses geospatial web services to process the EO data and geoprocessing workflow for automation and takes advantage of virtual data products (VDP) to release modelers from intensive data processing.

TL;DR: The NCEP-DOE Atmospheric Model Intercomparison Project (AMIP-II) reanalysis is a follow-on project to the "50-year" (1948-present) N CEP-NCAR Reanalysis Project.

TL;DR: A weekly 1° spatial resolution optimum interpolation (OI) sea surface temperature (SST) analysis has been produced at the National Oceanic and Atmospheric Administration (NOAA) using both in situ and satellite data from November 1981 to the present as mentioned in this paper.

TL;DR: The National Centers for Environmental Prediction (NCEP) and National Center for Atmospheric Research (NCAR) have cooperated in a project to produce a retroactive record of more than 50 years of global analyses of atmospheric fields in support of the needs of the research and climate monitoring communities as mentioned in this paper.

TL;DR: In this article, the authors constructed a 2.5° latitude-longitude grid for the 17-yr period from 1979 to 1995 by merging several kinds of information sources with different characteristics, including gauge observations, estimates inferred from a variety of satellite observations, and the NCEP-NCAR reanalysis.