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

    04 Feb 2021

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

  2. Marker Set

    06 Nov 2018 | Contributor(s): Lan Zhao, Carol Song

    Create iData Marker Set definition files (.ims)

  3. iData Packaging Tool

    12 Jun 2018 | Tools | Contributor(s): Lan Zhao, Carol Song

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

  4. Metadata Exporter

    03 Apr 2018 | Tools | Contributor(s): Lan Zhao, Carol Song

    Export geospatial file metadata to the ISO-19115 standard

  5. Developing Open Source Geospatial Data Analysis Building Blocks Software

    26 Oct 2017 | Publications | Contributor(s): Lan Zhao, Carol Song

    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.

  6. MyGeoHub Geospatial Gateway

    26 Oct 2017 | Publications

    MyGeoHub is a science gateway for researchers working with geospatial data. Based on the HUBzero cyberinfrastructure framework, it provides general-purpose software modules enabling geospatial data management, processing and visualization. Termed “GABBs” (Geospatial Data Analysis...

  7. iData Walkthrough

    21 Oct 2017 | Online Presentations | Contributor(s): Lan Zhao, Carol Song

    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. 

  8. iData Tutorial

    22 Jul 2016 | Teaching Materials | Contributor(s): Lan Zhao, Carol Song

    *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...

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

    15 Sep 2015 | Publications | Contributor(s): Lan Zhao, Carol Song

    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...

  10. 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.

  11. Cyberinfrastructure for GEOSHARE

    31 Jul 2014 | Online Presentations

  12. driNET: Drought Reserach Initiative Network

    20 Jun 2011 | Online Presentations

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

    14 Jun 2011 | Publications

    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...

  14. A Web-Based Interface for SWAT Modeling on the TeraGrid

    06 Jun 2011 | Publications

    The Soil and Water Assessment Tool (SWAT) is a river basin scale model developed by the USDA Agricultural Research Service (ARS). It is widely used by researchers in various scientific domains to study the impact of land management practices on water quantity, sediment, and water quality in large...

  15. 2011 Symposium on Data-Driven Approaches to Droughts flyer

    22 Jul 2010 | Workshops

    The DRINET team is hosting this symposium during June 20-22, 2011 at Purdue University, West Lafayette, Indiana.This symposium is sponsored by the National Science Foundation through the Office of Cyberinfrastructure* and the Hydrological Sciences Division, and is in partnership with EWRI...

  16. A copula-based joint deficit index for droughts

    31 Mar 2010 | Publications

    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...

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

    15 Jun 2009 | Publications

    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,...