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  1. A copula-based joint deficit index for droughts

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    31 Mar 2010 | Contributor(s): Rao S Govindaraju

    Current drought information is based on indices that do not capture the joint behaviors of hydrologic variables. To address this limitation, the potential of copulas in characterizing droughts from multiplevariables is explored in this study. Starting from the standardized index (SI) algorithm, a...

  2. A seasonal-scale climatological analysis correlating spring tornadic activity with antecedent fall–winter drought in the southeastern United States

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    14 Jun 2011 | Publications | Contributor(s): Dev Niyogi

    Using rain gauge and satellite-based rainfall climatologies and the NOAA Storm PredictionCenter tornado database (1952–2007), this study found a statistically significant tendency forfall–winter drought conditions to be correlated with below-normal tornado days the followingspring in north...

  3. A spatio-temporal drought analysis for the Midwestern US

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    15 Jun 2009 | Publications | Contributor(s): Rao S Govindaraju, Dev Niyogi

    Droughts are prolonged abnormalities of moisture deficits that vary widely across temporal and spatial scales. Many hydrometeorologic variables are used to monitor the status of a drought. However, because of the dependence structure between all affecting variables under various temporal windows,...

  4. AgMIP GEOSHARE Tool with iData Integration Demo

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    06 Mar 2015 | Tools | Contributor(s): Nelson Benjamin Villoria, Joshua Elliott, Christoph Mí_ller, Jaewoo Shin, Christopher Panza, Lan Zhao

    Aggregate yield shocks provided by the AgMIP's Global Gridded Crop Modeling Initiative (Ag-GRID) from their original 30x30 min resolution to any user specified level

  5. AgMIP Tool: A GEOSHARE tool for aggregating outputs from the AgMIP's Global Gridded Crop Modeling Initiative (Ag-GRID)

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    09 Jul 2014 | Tools | Contributor(s): Nelson Benjamin Villoria, joshua elliott, Christoph Müller, Jaewoo Shin, Lan Zhao

    Aggregate the yield shocks provided by the AgMIP project from their original 30x30 min resolution to any user specified level.

  6. Cyberinfrastructure for the collaborative development of U2U decision support tools

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    10 Nov 2016 | Publications | Contributor(s): Larry Biehl, Lan Zhao, Carol Song, Christopher Panza

    This paper describes the use of cyberinfrastructure to create interactive applications as part of the Useful to Usable (U2U) project. These applications transform historical climate data, knowledge, and models into decision support tools for end users such as crop farmers, uni- versity Extension...

  7. Developing A Collaborative Environment for the Useful to Usable (U2U) Project

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    10 Nov 2014 | Online Presentations | Contributor(s): Larry Biehl, Carol Song, Lan Zhao, Christopher Panza, Brian Raub, Luke Policinski

    HUBzero is being used as a collaborative environment for the Useful to Usable (U2U) project funded by the USDA. U2U is an integrated research and extension project working to improve farm resilience and profitability in the North Central U.S. by transforming existing climate data into usable...

  8. Developing A Collaborative Environment for Useful to Useable (U2U) Project

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    10 Nov 2014 | Downloads | Contributor(s): Larry Biehl, Carol Song, Lan Zhao, Christopher Panza, Brian Raub, Luke Policinski

    HUBzero is being used as a collaborative environment for the Useful to Usable (U2U) project funded by the USDA. U2U is an integrated research and extension project working to improve farm resilience and profitability in the North Central U.S. by transforming existing climate data into usable...

  9. Energy prices will play an important role in determining global land use in the twenty first century

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    31 Jul 2014 | Publications | Contributor(s): Jevgenijs Steinbuks, Tom Hertel

    Global land use research to date has focused on quantifying uncertainty effects of three major drivers affecting competition for land: the uncertainty in energy and climate policies affecting competition between food and biofuels, the uncertainty of climate impacts on agriculture and forestry,...

  10. Evaluation Reports

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    18 Oct 2011 | Publications | Contributor(s): Whitney Meredith

    An evaluation team perodically examines our progress towards defined project objectives. During year 1, three such evaluations are scheduled. As these are completed, the report will be added to this resource.

  11. Graphical User Interface for the California Food-Energy-Water System (CALFEWS) simulation model

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    22 Jan 2021 | Tools | Contributor(s): Andrew L Hamilton, Harrison Zeff, Keyvan Malek, Jonathan Herman, Jonathan Cohen, Josue Medellin-Azuara, Patrick M. Reed, Gregory W. Characklis

    Graphical User Interface for the California Food-Energy-Water System (CALFEWS) simulation model

  12. LANDPARAM

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    20 Jul 2015 | Tools | Contributor(s): Jing Liu, Nelson Benjamin Villoria (contributor)

    A tool to aggregate cropland supply and land transformation elasticities

  13. Market-mediated environmental impacts of biofuels

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    31 Jul 2014 | Publications | Contributor(s): Tom Hertel, Wallace E. Tyner

    This paper surveys the evidence on market-mediated environmental impacts of biofuels, with special attention to the indirect greenhouse gas emissions stemming from land cover change in the wake of increased demand for biofuel feedstocks. We find clear evidence that market mediated land use...

  14. PEGASUS (Predicting Ecosystem Goods And Services Using Scenarios)

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    14 Jul 2014 | Tools | Contributor(s): Delphine, Navin Ramankutty, I Luk Kim, Rajesh Kalyanam

    A GEOSHARE tool for conducting live simulations using PEGASUS (Predicting Ecosystem Goods And Services Using Scenarios)

  15. Root Zone Water Quality Model

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    06 Jun 2022 | Tools | Contributor(s): Balaji Sesha Srikanth Pokuri, Anupam Bhar (contributor)

    Whole-system model for studying crop production and environmental quality under current and changing climate conditions., developed by USDA-ARS

  16. U2U Accomplishment Highlights (April 2011 - Sept 2012)

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    17 Oct 2012 | Publications | Contributor(s): Melissa Widhalm, John Kriva

    This document provides a brief overview of the top accomplishments from the U2U project from April 2011 - Sept 2012.

  17. U2U Accomplishment Highlights (April 2011 - Sept 2012)

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    17 Oct 2012 | Publications | Contributor(s): Melissa Widhalm, John Kriva

    This document provides a brief overview of the top accomplishments from the U2U project from April 2011 - Sept 2012.

  18. U2U Fact Sheet - October 2011

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    28 Oct 2011 | Publications | Contributor(s): Melissa Widhalm

    The U2U fact sheet is a brief handout describing project objectives and participants.

  19. U2U Fact Sheet - October 2012

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    17 Oct 2012 | Publications | Contributor(s): Melissa Widhalm

    The U2U fact sheet is a brief handout describing project objectives and participants.

  20. U2U Objective 1 Fact Sheet

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    24 Jan 2012 | Publications | Contributor(s): Melissa Widhalm

    The U2U Objective 1 Fact Sheet briefly describes the planned and ongoing research activities, as well as participants, of the Objective 1 Working Group.