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Identification and synthesis of agrometeorological extreme weather indicators for the temperate-boreal zone

Malmquist, Louise and Barron, Jennie (2022). Identification and synthesis of agrometeorological extreme weather indicators for the temperate-boreal zone. (NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
, Sveriges lantbruksuniversitet.
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Abstract

Extreme weather events are per definition rare. These events are classified differently depending on sector and system of interest. Agrometeorological extremes consider the relation of potential and actual impact of weather events on crop development and yield. Climate change is changing todays’ extreme events in frequency, occurrence, and extent (intensity). This document reviews definitions of extreme weather linked to agricultural production in the Nordics. The objective is to identify relevant agrometeorological indices of normal and extreme weather for assessing potential impacts on crop production in the temperate-boreal zone. The review is limited to indices related to the meteorological variables of precipitation and temperature. The result show that definitions of agrometeorological extreme events used in literature are not standardized. The review found a substantial number of studies using typical meteorological definitions, especially linked to extreme precipitation and drought events (n =19 of 22, and n = 9 of 13 individual definitions respectively), even when the application was intended to assess potential agricultural (crop) impacts. In total, n = 33 publications for Nordic and global sources were reviewed with 44 % of definitions addressed temperature, 40 % addresses precipitation and 14 % related to combination of two or more weather features (such as aridity index). Unlike meteorological and hydrological indices, agrometeorological indices need to reflect intra-seasonal frequency and intensity of events, to inform crop and animal husbandry management. Relevant high-resolution agro-climatic assessments is necessary to inform agricultural adaptation strategies and investments in temperate-boreal zones, when todays’ extreme weather becomes the new normal.

Authors/Creators:Malmquist, Louise and Barron, Jennie
Title:Identification and synthesis of agrometeorological extreme weather indicators for the temperate-boreal zone
Year of publishing :2022
Number of Pages:34
Publisher:Department of Soil and Environment, Department of Soil and Environment
ISBN for electronic version:978-91-576-9955-8
Language:English
Publication Type:Report
Article category:Other scientific
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
Keywords:Extreme weather, Agro- climatic indices, Cold spells, Crop yield, Drought, Dryspells, Heat waves, Soil saturation, Scandinavian Peninsula
URN:NBN:urn:nbn:se:slu:epsilon-p-116370
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116370
ID Code:28441
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
Deposited By: SLUpub Connector
Deposited On:04 Aug 2022 06:25
Metadata Last Modified:04 Aug 2022 06:31

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