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Meteorological & Geoastrophysical Abstracts

Meteorological & Geoastrophysical Abstracts (MGA) contains records drawn from the World's literature on meteorology, climatology, atmospheric chemistry and physics, astrophysics, hydrology, glaciology, physical oceanography and environmental sciences. Summaries from over 600 journal titles, as well as conference proceedings, books, technical reports and other monographs, are included. Each record includes complete citation information, Universal Decimal Classification subject classifications, and subject descriptors drawn from the MGA Controlled Vocabulary. Online versions of the Controlled Vocabulary and the UDC subject classifications are available to facilitate online searching. MGA is produced by the American Meteorological Society and is published by CSA.

Deep Indexing

ProQuest Deep Indexing: Atmospheric Sciences supplements Meteorological & Geoastrophysical Abstracts with access to deep indexing for tables, figures, graphs, charts and other illustrations from the scholarly research and technical literature for selected records. Records from the database appear with searches of Meteorological & Geoastrophysical Abstracts to provide an additional path for discovery.

For additional information, please see the ProQuest Deep Indexing: Atmospheric Sciences factsheet.

AtmosPeer: New Research Tool for Atmsopheric Science Community

AtmosPeer is a research tool designed specifically for researchers, faculty, librarians & students in the atmospheric science community. AtmosPeer provides:

  • A central source of news in the atmospheric sciences
  • Current lists of conferences, scholars, and funding
  • Capability to search recent research in the MGA collection - a product developed in partnership between AMS and ProQuest
  • Social Networking - find, evaluate and initiate contact with new people. Share documents and receive feedback and collaborate on research

More about AtmosPeer.

Subject Coverage
    Major areas of coverage include:
    • Air pollution
    • Astrophysics
    • Atmospheric disturbances
    • Atmospheric structure
    • Climatology
    • Geomagnetism
    • Glaciology
    • Groundwater/surface water hydrology
    • Hydrologic cycle
    • Meteorological observations
    • Physical Oceanography
    • Radiation and temperature
    • Weather forecasting
Dates of Coverage
    1974 - current
Update Frequency
    Monthly, 850 new records added
    Over 0 records as of May 2013
    789 E. Eisenhower Parkway
    P.O. Box 1346
    Ann Arbor, MI 48106-1346
    Tel: +1-734-761-4700
Sample Record
    TI: Title
    Forest climatology: estimation and use of daily climatological data for Bavaria, Germany
    AU: Author
    Xia, Youlong; Fabian, Peter; Winterhalter, Martin; Zhao, Mei
    AF: Author Affiliation
    Department of Physical Geography, Macquarie University, North Ryde, Sydney, NSW, Australia
    SO: Source
    Agricultural and Forest Meteorology, Amsterdam, The Netherlands, 106(2): 87-103, January 27, 2001
    IS: ISSN
    NT: Notes
    Refs., figs., tables, appendix. DAS, DLC (S600 .A34).
    AB: Abstract
    Long-term daily climatological data are important to study forest damage and simulate tree growth, but they are scarce in forested areas because observational records are often scarce. At the eight Bavarian forest sites, we examined six interpolation methods and established empirical transfer functions relating observed forest climate data to the climate data of German weather stations. Based on our comparisons, a technique is developed and used to reconstruct 31-year daily forest climatological data at six forest sites. The reconstructed climate data were then used to calculate four meteorological stress factors which are of importance to forest studies. Finally, the uncertainties, temporal and spatial variation of these stress factors were discussed.
    LA: Language
    PY: Publication Year
    PD: Publication Date
    PT: Publication Type
    Journal Article
    DE: Descriptors
    Climatology; Bavaria, Germany (430)
    CL: Classification
    M2 551.58 Climatology
    UD: Update
    SF: Subfile
    Meteorological & Geoastrophysical Abstracts
    AN: Accession Number
Field Codes

    The following field codes are found in the records of this database. Here they are listed in alphabetical order by two-letter code. See Field Codes and Search Examples for detailed descriptions and search examples.

    AB = Abstract LA = Language
    AF = Author Affiliation NT = Notes
    AN = Accession Number NU = Other Numbers
    AU = Author OT = Original Title
    CA = Corporate Author PB = Publisher
    CF = Conference PT = Publication Type
    CL = Classification PY = Publication Year
    DE = Descriptors SF = Subfile
    ED = Editor SL = Summary Language
    IB = ISBN SO = Source
    ID = Identifiers TI = Title
    IS = ISSN UD = Update

    MGA Field Labels and Search Tips:

    In General, these are the Field Labels that appear in an MGA record. Not all Field Labels are present in all records.

    AB = Abstract Field
    The abstract includes key points of the source article. Most records have abstracts and when available, authors' abstracts are used, although they may be edited to CSA style. Every word is searchable; however, to find precisely what you want, use only distinctive words and phrases. In selected source material where available, abstracts in languages other than English may be added. These are appended to the end of the English abstract and follow the words Original Abstract. If a record only contains a foreign language abstract, it will be the only text appearing in the AB field.

    AF = Author Affiliation
    This field includes the Lead author affiliation. There is only one affiliation included and it corresponds to the First Author unless otherwise indicated.

    AN = Accession Number
    This is a unique number assigned to each record. In some databases it is a 7-digit number and to retrieve the record with that number all 7 digits must be entered, including any leading zeros.

    AU = Author
    This field contains the name(s) of the author(s) of the source document. Currently a maximum of 14 authors are listed per record, but this has not always been the case. Names are usually in the format of Author, AB. Prior to 2002, author names are in many different formats. Best results will be found by browsing the Author Index to see all possible combinations.

    AV = Availability
    This field contains information that may help locate the document. Often it may include other relevant information regarding the source document.

    CA = Corporate Author
    This is the name of the organization that has produced the original source document. This field is often present when there is no personal author field. To search this field use the distinctive parts of the name and do not search for designations such Corp, Co, Company, Ltd. Etc. Often, the city and country are also provided; in older records the following abbreviations may still be seen -- FRG for the former West Germany; GDR for the former East Germany, and USSR for the former Union of Soviet Socialist Republics.

    CF = Conference
    This field provides the name of the conference and where and when it occurred; it is generally edited to CSA style, eg:

    24. Annu. Benthic Ecology Meeting, Columbia, SC (USA), 7-10 Mar 1996

    All these words are searchable, but for faster retrieval, ignore the common words such as "annual or "annu" or "meeting" and search for the distinctive elements only. Records retrieved include the papers presented at the particular meeting and the "master record" for the complete proceedings. If you just want the master record, use the TI= field as well, and AND the results together to produce the final result.

    CL = Classification
    The classification codes and descriptions are broad subject headings that are specific to various databases. Due to the interdisciplinary nature of much of the material covered, one record may have several classifications that correspond to different databases. MGA uses the UDC system to classify articles. For more information regarding the UDC classification system, see: This field can be searched for either the classification number or distinctive words.

    For example:
    CL=Flash Floods

    Both searches retrieve the same number of results.

    DE = Descriptors
    MGA uses a controlled list of descriptors comprised of words and short phrases. Best results will be found by browsing the Meteorological & Geoastrophysical Terms using the Thesaurus Search option.

    ED = Editor
    This field contains the name(s) of the editor(s) of the source document. Names are usually in the format of Author, AB. Prior to 2002, this data was included in the SO field or in the AU field.

    ER = Environmental Regime
    This is unique to the ASFA: Aquatic Sciences & Fisheries Abstracts database and its component subfiles. It indicates whether a source document deals with the marine, brackish or freshwater environment, or any combination of these. Marine, Brackish and Freshwater are the only values found in this field and can be easily searched. This field may be displayed in MGA records that have also been indexed by ASFA.

    IB = ISBN
    The ISBN is the International Standard Book Number. Its purpose is to identify uniquely a book title, an edition of a book, or a monograph produced by a specific publisher. Each ISBN number consists of ten digits separated into the following parts:
    Group identifier (national, geographic, language, or other type of group)
    Publisher or producer identifier
    Title identifier
    Check digit

    ID = Identifiers
    This field contains subject terms not included in the controlled vocabulary but considered by the indexer to be extremely relevant to the record. They may be single word or multiple word terms. Since identifiers are not selected from the controlled vocabulary, different synonyms for the same subject may appear in this field, as well as abbreviations and acronyms. Also, company names, trademarks, the names of legislative acts, government policies and new and up-coming methods and procedures are often assigned as identifiers. Like descriptors, these terms may not appear in the title or abstract, and therefore serve as additional ways to focus your search. Use ID= followed by the words you want to look for in parentheses.

    IS = ISSN
    The ISSN is the International Standard Serial Number and is a unique number identifying serial publications such as journals. The ISSN consists of two groups of four digits in Arabic numerals, except possibly for the last, check digit, which may be an X. This conformity makes it easy to search for ISSNs, which can be entered with or without the hyphen between the two groups of four characters. Records created previous to 2002 did not include ISSNs. ISSNs were added to several major titles in the backfile prior to their incorporation into IDS.

    LA = Language
    This indicates the language(s) of the original source document. If there is no language field in the record, it can be assumed the original text is in English. The full name of each language is searchable.

    NT = Notes
    This field contains miscellaneous information pertaining to the record and is meant for display purposes only, although it is searchable.

    NU = Other Numbers
    This lists any type of bibliographic number attached to a document that is not already in its own field. It can include report numbers, patent numbers, dissertation codes, and for older records, even ISBNs and ISSNs. Formats of such numbers have not been standardized and are not predictable, therefore this is not a good field to try and search. Its purpose is to display additional valuable information.

    OT = Original Title
    The non-English language title from the source document appears in this Original Title field if the title is in a Roman alphabet. Title translations appear in the Title, TI= field. No diacriticals are represented. This is a change from MGA on CD-ROM where the Title corresponding to the language of the article always appears in the TI field.

    PB = Publisher
    This field typically occurs when the item indexed is a book or monograph, although increasingly, more records where the source document is a journal article, have this field also. The Publisher field includes the name of the publisher and the place of publication. Previous to 2002, this data was displayable but was not searchable.

    PT = Publication Type
    Records are categorized by the generic type, physical form or medium of the original source document, such as "Journal article", "Conference" etc. In the CSA databases, the following terms are searchable:

    Computer file [infrequent]
    Dictionary [infrequent]
    Drawing [infrequent]
    Film [infrequent]
    Journal article
    Law or statute
    Numerical data
    Sound recording [infrequent]
    Summary [ie, source document is abstract only]
    Training manual [infrequent]

    Records created prior to 2002 were not indexed with a Document Type. All of these documents exist in IDS as "Journal article"

    PY = Publication Year
    This field contains the year in which the source document was published. Search it as a four-digit date

    SF = Subfile
    Many of the major CSA databases are composed of several subfiles merged into one comprehensive and cohesive database. In these major databases, a subfile name corresponds to the print product (ie, the abstracts journal) in which the record originally appeared. A few subfiles exist only as archives because the print equivalent is no longer published. In these large databases, the Subfile field can be used to limit a search to a specific discipline.


    SL = Summary Language
    This field indicates the language(s) of abstracts printed with the source document. Often, if the abstract is only in English, then no summary language displays.

    SO = Source
    This field contains bibliographic citation information. If it is a journal article, the SO field contains the Journal Title, Abbreviated Title, Volume, Number, Page Range. Prior to 2002, the SO field does not contain Abbreviated Titles. If the record is a Monograph, the SO field will contain the Monograph title.

    TI = Title
    This field contains the title of the source document in English. Non-Roman titles are transliterated into English as well. Non-English titles appear in the Original Title, OT=, field.

    TR = ASFA Input Center Number
    This is unique to the ASFA: Aquatic Sciences & Fisheries Abstracts database and its component subfiles. This field may be displayed in MGA records that have also been indexed by ASFA.

    UD = Update
    This field indicates the date that the record was added to IDS. The format is YYYYMM. This field is helpful to search for the latest records that have been added to the database.