Ground frost

From Glossary of Meteorology



ground frost

  1. In British usage, a freezing condition injurious to vegetation, which is considered to have occurred when a minimum thermometer exposed to the sky at a point just above a grass surface records a temperature (grass temperature) of -0.9°C (30.4°F) or below.

    Since 1961 in Britain the statistics refer to the "number of days with grass minimum temperature below 0°C" rather than to ground frost. A fuller discussion is given in McIntosh (1963).
    See frost.

  2. McIntosh, D. H. 1963. The Meteorological Glossary. Her Majesty's Stationery Office, London, . p. 12.


Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.