Supervisor, MSU Agricultural Weather Office, 1991-present. 

Vulnerability of specialty crops to short-term climatic variability and adaptation strategies in the Midwestern USA

Mesonets: Mesoscale Weather and Climate Observations for the United States

Extension′s role in disseminating information about climate change to agricultural stakeholders in the United States

Climate Forecasts for Corn Producer Decision Making

Spatial and temporal variations in land development and impervious surface creation in Oakland County, Michigan, 1945–2005

The development of the asparagus miner (Ophiomyia simplex Loew; Diptera: Agromyzidae) in temperate zones: a degree‐day model

Developed to inform the 2013 National Climate Assessment, and a landmark study in terms of its breadth and depth of coverage and conducted under the auspices of the U.S. Global Change Research Program, Climate Change in the Midwest examines the known effects and relationships of climate change variables on the eight states that make up the region.  This state of the art assessment comes from a broad range of experts in academia, private industry, state and local governments, NGOs, professional societies, and impacted communities. It highlights past climate trends, projected climate change and vulnerabilities, and impacts to specific sectors.Rich in science and case studies, it examines the latest climate change impacts, scenarios, vulnerabilities, and adaptive capacity and offers decision makers and stakeholders a substantial basis from which to make informed choices that will affect the well-being of the region’s inhabitants in the decades to come.

Climate Change in the Midwest: A Synthesis Report for the National Climate Assessment (NCA Regional Input Reports)

Michigan State University has been working to advance the common good in uncommon ways for more than 150 years. One of the top research universities in the world, MSU focuses its vast resources on creating solutions to some of the world’s most pressing challenges, while providing life-changing opportunities to a diverse and inclusive academic community through more than 200 programs of study in 17 degree-granting colleges.

Michigan State University

Dr. Jeff Andresen is a professor in MSU’s Department of Geography and the State Climatologist for Michigan.  He has professional experience with the National Weather Service and with the USDA's World Agricultural Outlook Board in Washington, D.C., where he was involved in international crop/weather impact assessment and production estimation.  He currently serves as director of Michigan’s Enviro-weather information system, which supports agricultural pest and production management related decision-making across the state (www.enviro-weather.msu.edu), and as an extension specialist maintaining an active outreach program including dissemination of weather and climate data and information to the general public and continuing education activities. Teaching responsibilities include courses in agricultural climatology, meteorology, regional climatology, and physical geography.  The primary focus of Andresen’s research has been the influence of weather and climate on agriculture, both in the USA and in international production areas.  Current and past themes include climatological trends and potential impacts, crop simulation modeling, agricultural irrigation, impacts associated with potential future changes in climate, weather and risk management, and the influence of land use changes on regional climate. 

Andresen is responsible for providing weather-related information and professional expertise to the university and to the general public, including dissemination of weather data and information through print and internet media, public speaking engagements, professional consultation, and continuing education activities.  He is also developer and administrator of Michigan's Automated Weather Network, a network of 88 automated weather stations across the state providing detailed weather information for the Enviro-Weather system.  He is currently co-director of the Great Lakes Integrated Regional Science Assessment (GLISA) and has served as a member of the Michigan Climate Action Council (Governor-appointed) December 2007-2009 and as a U.S. Representative from Region IV to the World Meteorological Organization’s Agrometeorological Services for Agricultural Production Open Program Area Group, 2004-2006 and from 2015-present.

Agriculture

Meteorology

Climatology

Biden is trying to win over rural Trump voters in Michigan with a campaign ad featuring farmers whose businesses have been impacted by climate change

A warmer, wetter Michigan might be making potholes worse

Climate experts foresee heavier storms, rising lake levels

Effect of climate change on Great Lakes' algae under review

Professor of Geography

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