• Arizona and the North American Monsoon System

      Crimmins, Michael; Natural Resources & the Environment, School of (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006-09)
      This publication provides an depth look at the North American Monsoon system and its impact on summer weather in Arizona.
    • Better Coverage of Arizona's Weather and Climate: Gridded Datasets of Daily Surface Meteorological Variables

      Weiss, Jeremy; Crimmins, Michael; Univ Arizona, Coll Agr & Life Sci (College of Agriculture, University of Arizona (Tucson, AZ), 2016-08)
      Many areas that use agricultural and environmental science for management and planning – ecosystem conservation, crop and livestock systems, water resources, forestry and wildland fire management, urban horticulture – often need historical records of daily weather for activities that range from modeling forage production to determining the frequency of freezing temperatures or heavy rainfall. In the past, such applications primarily have used station-based observations of meteorological variables like temperature and precipitation. However, weather stations are sparsely and irregularly located throughout Arizona, and due to the highly variable terrain across the state (Figure 1), information recorded at these sites may not represent meteorological conditions at distant, non-instrumented locations or over broad areas. This issue, along with others related to quality, length, and completeness of station records, can hinder the use of weather and climate data for agricultural and natural resources applications. In response to an increasing demand for spatially and temporally complete meteorological data as well as the potential constraints of station-based records, the number of gridded daily surface weather datasets is expanding. This bulletin reviews a current suite of these datasets, particularly those that integrate both atmospheric and topographic information in order to better model temperature and precipitation on relatively fine spatial scales, and is intended for readers with knowledge of weather, climate, and geospatial data. In addition to addressing how these datasets are developed and what their spatial domain and resolution, record length, and variables are, this bulletin also summarizes where and how to access these datasets, as well as the general suitability of these datasets for different uses.
    • Climate Change and Wildfire Impacts in Southwest Forests and Woodlands

      Rogstad, Alix; Crimmins, Michael; Garfin, Gregg (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2012-04)
    • Climate Change and Wildfire Impacts in Southwest Forests and Woodlands (Climate Change and Variability in Southwest Ecosystems Series)

      Crimmins, Michael; Garfin, Gregg; Natural Resources & the Environment, School of (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006-11)
      Southwest forests are complex systems that are influenced by climate variability. Wildfires naturally occur in these forests and woodlands, but with an increasing population, land management decisions are becoming more difficult. This publication is a result of discussions from the "Workshop on Climate Variability and Ecosystem Impacts" that was sponsored by UA Cooperative Extension in February 2005. It provides a summary of the current situation, a summary of climate change science for land management, and a brief description of suggested future research in climate science as it relates to forests and woodlands.
    • Doing our Part to Help Conserve Arizona's Water Resources and Reduce Global Warming by Saving Energy at Home

      Artiola, Janick; Crimmins, Michael; Yoklic, Martin (College of Agriculture, University of Arizona (Tucson, AZ), 2015-01)
      Climate change is affecting Arizona's Water Resources adversely and water use is linked to energy consumption. This publication discusses the effects of global warming on the environment and provides tips on how to conserve electricity at home.
    • DroughtView: Satellite-based Drought Monitoring and Assessment

      Weiss, Jeremy; Crimmins, Michael (College of Agriculture, University of Arizona (Tucson, AZ), 2017-05)
      Remotely sensed data are valuable for monitoring, assessing, and managing impacts to arid and semi-arid lands caused by drought or other changes in the natural environment. With this in mind, we collaborated with scientists and technologists to redevelop DroughtView, a web-based decision-support tool that combines satellite-derived measures of surface greenness with additional geospatial data so that users can visualize and evaluate vegetation dynamics across space and over time. To date, users of DroughtView have been local drought impact groups, ranchers, federal and state land management staff, environmental scientists, and plant geographers. Potential new applications may include helping to track wildland fire danger. Here, we present the functionality of DroughtView, including new capabilities to report drought impacts and share map information, as well as the data behind it.
    • Understanding Arizona's Riparian Areas

      Zaimes, George; Nichols, Mary; Green, Douglas; Crimmins, Michael; Natural Resources & the Environment, School of (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2007-08)
      Riparian areas occupy less than 2% of the arid Western United States. Their importance is disproportionate to the small area they occupy because of their multiple use applications. Riparian areas provide recreational amenities, habitat and travel corridors for wildlife, livestock grazing areas and influence water quality and quantity. In Arizona, as in many other states, there is a need to provide science-based educational publications to inform the public on riparian areas. In this publications the information will focus on: 1) the definition, importance and characterization of riparian areas 2) hydrologic, geomorphic, climatic, and biological processes in riparian areas, and 3) human alterations to riparian areas. This information is essential for land-managers and the general public to manage properly or restore healthy riparian areas.