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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. 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. 

  7. 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...

  8. 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...

  9. 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.

  10. SPAM in the Clouds

    05 Aug 2014 | Tools

    Spatial Production Allocation Model (SPAM) 2005 Beta Version

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

    07 Dec 2021 | 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...

  12. A copula-based joint deficit index for droughts

    07 Dec 2021 | 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...

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

    07 Dec 2021 | 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,...