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  1. PyMapLib Tutorial Tool

    30 Aug 2016 | Tools | Contributor(s): Jaewoo Shin

    Step-by-step tutorial for new users of PyMapLib library

  2. 2016 GABBs Project Highlights

    26 Feb 2017 | Downloads | Contributor(s): Carol Song

    This is a document that highlights the new development  and engagement activities of the GABBs project in 2016. This DIBBs implementation project develops geospatial data analysis building blocks in the HUBzero Scientific Collaboration Platform to enable researchers and educators to create...

  3. 2017 GABBs Project Highlights

    11 Feb 2018 | Publications | Contributor(s): Carol Song

    This document highlights the GABBs project activities and accomplishments in 2017. GABBs is a National Science Foundation supported Data Infrastructure Building Blocks implementation project that has extended the HUBzero software stack with geospatial data and...

  4. A copula-based joint deficit index for droughts

    31 Mar 2010 | Publications | 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...

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

    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...

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

    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,...

  7. Achieving Sustainable Irrigation Water Withdrawals: Global Impacts on Food Production and Land Use

    27 Sep 2017 | Publications | Contributor(s): Jing Liu, Tom Hertel, Richard Lammers, Alexander A Prusevich, Uris Lantz C Baldos, Danielle Grogan, Steve Frolking

    Unsustainable water use challenges the capacity of water resources to ensure food security and continued growth of the economy. Adaptation policies targeting future water security can easily overlook its interaction with other sustainability metrics and unanticipated local responses to the...

  8. Agricultural Productivity Growth for Long Run Sustainability

    08 Oct 2018 | Online Presentations | Contributor(s): Uris Lantz C Baldos

    Video presentation on "Agricultural Productivity Growth for Long Run Sustainability" for the 2018 Conference on the Long Run Sustainability of US Agriculture, the National Press Club, Washington DC, September 17, 2018

  9. An open source geospatial cyberinfrastructure for interdisciplinary collaboration and broader engagement

    26 Oct 2017 | Downloads | Contributor(s): Carol Song

    Solving complex global problems demands that researchers from different disciplines work together, and their analytical tools, models and datasets interoperate. This is especially true in the context of sustainability. For instance, multiple goals of the United Nations Sustainable Development...

  10. Analyzing Water Scarcity in Global CGE Models

    08 Sep 2017 | Publications | Contributor(s): Jing Liu, Tom Hertel, Farzad Taheripour

    Incorporating water into a computable general equilibrium (CGE) model operating at global scale can be extremely demanding due to the absence of standardized data, the sheer dimensions caused by intersecting river basins with countries, and difficulties to model demand for and supply of water....

  11. Assessing the Inter-regional Incidence of Climate Impacts on Agriculture

    19 Oct 2017 | Publications | Contributor(s): Tom Hertel

    This is a presentation at IMPACTS WORLD 2017.

  12. Assessing the Poverty Impacts of Climate Change across Latin America

    19 Oct 2017 | Publications | Contributor(s): Tom Hertel, Monika Verma, Eduardo Magalhaes, Carlos Ludena, Uris Lantz C Baldos, Frances Moore

    This is a poster presented at IMPACTS WORLD 2017, Germany.

  13. Attaining Food and Environmental Security in an Era of Globalization

    08 Sep 2017 | Publications | Contributor(s): Tom Hertel, Uris Lantz C Baldos

    Attaining the twin goals of food and environmental security in the coming decades poses a significant sustainability challenge. This paper examines the food and environmental security implications of a range of policies affecting the global food economy and terrestrial ecosystems, first in the...

  14. Broadening Access to Geospatial Capabilities

    06 Nov 2014 | Downloads | Contributor(s): Carol Song, Larry Biehl, Venkatesh Merwade, Nelson Benjamin Villoria

    This is a presentation at HUBbub 2014

  15. Broadening Access to Geospatial Capabilities

    07 Nov 2014 | Downloads | Contributor(s): Carol Song

    This is a presentation at Purdue GIS Day on November 7, 2014.

  16. Cloud-enabling a Collaborative Research Platform: The GABBs Story

    26 Oct 2017 | Publications | Contributor(s): Rajesh Kalyanam, Rob Campbell, Derrick Kearney, Leif Delgass, Larry Biehl, Lan Zhao, Carolyn A Ellis, Carol Song

    Modern cyberinfrastructures typically involve tightly integrated compute, storage and web application resources. They also form the basis of science gateways, which add their own science-specific processing or visualization capabilities. While some science gateways are intended as the central...

  17. Connecting Communities Through HUBzero

    03 Oct 2014 | Online Presentations | Contributor(s): Nelson Benjamin Villoria, Joshua Elliott, Hongjun Choi, Lan Zhao

  18. Debunking the 'New Normal': Why World Food Prices are Expected to Resume their Long run Downward Trend

    08 Sep 2017 | Publications | Contributor(s): Uris Lantz C Baldos, Tom Hertel

    Contrary to the opinions expressed by many commentators, the recent episode of higher prices for agricultural commodities is likely a transitory phenomenon. When compared to the last half-century, population growth is expected to be much slower in the coming decades, with nearly all of the growth...

  19. Demonstration of the Crop Calendar Prototype using PyMapLib

    12 Feb 2017 | Animations | Contributor(s): Carol Song

    This short video demonstrates the concept of a crop calendar tool. This is only an early prototype. Further development will be necessary to meet the user requirements.

  20. Developing Open Source Geospatial Data Analysis Building Blocks Software

    26 Oct 2017 | Publications | Contributor(s): JIngbo Wu

    This is an article published at Journal of Purdue Undergraduate Research by Jingbo Wu describing his summer intern work as part of the GABBs project.