Environmental Modeling Center
United States weather agency
The Environmental Modeling Center (EMC) is a United States Government agency, which improves numerical weather, marine and climate predictions at the National Centers for Environmental Prediction (NCEP), through a broad program of research in data assimilation and modeling. In support of the NCEP operational forecasting mission, the EMC develops, improves and monitors data assimilation systems and models of the atmosphere, ocean and coupled system, using advanced methods developed internally as well as cooperatively with scientists from universities, NOAA laboratories and other government agencies, and the international scientific community.
History
In July 1954, the Joint Numerical Weather Prediction Unit (JNWPU) was created to test out numerical weather prediction techniques by computer. Operational numerical weather prediction in the United States began in 1955 under the JNWPU. This unit co-located with the Weather Bureau-Air Force-Navy (WBAN) analysis center to form the National Weather Analysis Center, which was located in Suitland, Maryland. When the two units merged, the name changed to the National Meteorological Center (NMC) in January 1958. When the JNWPU dissolved in 1961, NMC became an independent organization from Global Weather Central and Fleet Numerical Weather Central. Research and computer processing abilities increased over the years, which allowed for the first global forecast model to run by June 1966. NMC moved to the World Weather Building in Camp Springs, Maryland between 1974 and 1976. NMC changed its name to NCEP, the National Centers for Environmental Prediction on October 1, 1995, with the Environmental Modeling Center (EMC) becoming one of its subunits. EMC moved to the National Centers for Weather and Climate Prediction building in College Park, Maryland in September 2012.
The public source identifies “Environmental Modeling Center” as united States weather agency. This brief keeps that definition visible, then builds a research path around Environmental, Modeling and Center.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Environmental Modeling Center”, the useful work is to connect “united States weather agency” to the records capable of establishing context and consequence.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 8, 2026. The linked authority identifier is Q5381140. The Library of Congress control number is no2022127967. Authority coordinates are 38.972, -76.924. 3 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1954, 1955, 1958 and 1961.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Environmental Modeling Center”, its source revision and the description used here.
- Expand the search: follow Environmental Modeling Center primary sources, Environmental Modeling Center archive and Environmental research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Environmental Modeling Center”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Environmental Modeling Center” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.