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  1. Quantifying the uncertainties in estimating the heterogeneous effects of carbon taxes on labor, land, water, and fertilizer use in US agriculture

    17 May 2023 | Contributor(s): Iman Haqiqi

    Selected Paper prepared for presentation at the 2023 Agricultural & Applied Economics Association Annual Meeting, Washington DC; July 23-25, 2023 Potential carbon taxes will have spatially heterogeneous impacts on agriculture. The magnitude of impacts depends on 1) the direct and...

  2. A review of global-local-global linkages in economic land-use/cover change models

    04 May 2019 | Contributor(s): Tom Hertel, Thales A P West, Jan Börner, Nelson Benjamin Villoria

    Global change drivers of land-use/cover change (LUCC) like population dynamics, economic development, and climate change are increasingly important to local sustainability studies, and can only be properly analyzed at fine-scales that capture local biophysical and socio-economic conditions. When...

  3. Marker Set

    06 Nov 2018 | Contributor(s): Rob Campbell

    Create iData Marker Set definition files (.ims)

  4. Using spatially explicit data to improve our understanding of land supply responses: An application to the cropland effects of global sustainable irrigation in the Americas

    09 Aug 2018 | Contributor(s): Nelson Benjamin Villoria, Jing Liu

    Land supply elasticities determine the rates of land conversion in global policy models. However, they are only available for few countries in the world. Therefore, analysts seeking to improve the spatial resolution of their models are forced to impose regionally homogeneous parameters...

  5. iData Packaging Tool

    12 Jun 2018 | Tools | Contributor(s): Rajesh Kalyanam, Rob Campbell (contributor), Lan Zhao (contributor)

    Package iData files into a BagIT bag for subsequent import to a different project.

  6. Metadata Exporter

    03 Apr 2018 | Tools | Contributor(s): Rajesh Kalyanam

    Export geospatial file metadata to the ISO-19115 standard

  7. 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.

  8. iData Walkthrough

    21 Oct 2017 | Online Presentations | Contributor(s): Rajesh Kalyanam

    This video demonstrates the features of the GABBs iData data management building block such as automatic metadata extraction and geospatial file preview. It also walks through how iData files can be used in both hub tools and publications. 

  9. iData Tutorial

    22 Jul 2016 | Teaching Materials | Contributor(s): Abilene Thiele Concepcion Perez

    *Note that the number before each step is the time on the YouTube video below where it shows how each step is done. Click on "View Resource" on the top right to watch the video.Start iData [0:05] Go to http://mygeohub.org/idata to load the iData application. It starts with...

  10. FLAT: Fine-scale Land Allocation Tool

    15 Apr 2016 | Tools | Contributor(s): Jingyu Song, Michael S Delgado, Paul V. Preckel, Shandian Zhe, Ian James Campbell, Lan Zhao, Carol Song

    Open access user interface FLAT: designed for fine-scale global land use estimation, display, and comparison.

  11. Data-driven Collaboration Environments - Integrating HUBzero and iRODS

    15 Sep 2015 | Publications | Contributor(s): Rajesh Kalyanam

    As part of an effort to establish a community-based data sharing environment, we previously developed a HUBzero-based web component, iData. Using the open-source data management software, iRODS, iData  provides hub users and tools with the ability to publish, manage, discover...

  12. LANDPARAM

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

    A tool to aggregate cropland supply and land transformation elasticities

  13. iData Cheat Sheet

    19 Jun 2015 | Teaching Materials | Contributor(s): Lan Zhao, Carol Song

    This document is a quick note that guides new iData users through the steps of registering a hub account, creating a new dataset, uploading some files, and sharing with others.

  14. The role of international trade in managing food security risks from climate change

    20 Mar 2015 | Publications | Contributor(s): Uris Lantz C Baldos, Tom Hertel

    International trade plays an important role in facilitating global food security in the face of a changing climate. In considering this issue, it is useful to distinguish between two different time scales: inter-annual and inter-decadal. Inter-annual adjustments in international trade can play an...

  15. AgMIP GEOSHARE Tool with iData Integration Demo

    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

  16. Geospatial Targeting of Irrigation Investment in Tanzania

    11 Nov 2014 | Web Apps | Contributor(s): Jawoo Koo, Hua Xie, Liangzhi You, zhe guo, Jeffrey Dickinson, Cindy Cox

    This tool helps users to identify specific sites within the SAGCOT (Southern Agricultural Growth Corridor of Tanzania) area where new irrigation investments should target at 10 km spatial resolution. Users can interact with the map (showing the grid cells meeting the requirements, where the color...

  17. Institutional Design Breakout Summary

    14 Oct 2014 | Downloads | Contributor(s): Tom Hertel, Dave Gustafson

  18. HUBZero Breakout Summary

    14 Oct 2014 | Downloads | Contributor(s): Tom Hertel

  19. Data Fusion Breakout Summary

    14 Oct 2014 | Downloads | Contributor(s): Tom Hertel

  20. Data Endorsement Breakout Summary

    14 Oct 2014 | Downloads | Contributor(s): Tom Hertel