3D Hydrography (3DHP) Interest Group

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  • 1.  June EDH Forum and Project Update

    Posted 06-11-2021 10:54
    NSGIC EDH for 3DNHD Interest Group Members,

    Register now for the June 16, 2021 3-4pm ET NSGIC EDH Forum.
    Jim Giglierano, GIO State of Wisconsin will be discussing:
    Culvert Mapping and Hydro-enforcement in the Lake Superior Region

    If you missed any of the previous EDH Forums, the materials - including webinar recordings, slide decks, and Q&A discussion summaries - are available from the NSGIC Learning Link via the 'Project' menu or by searching keyword 'EDH'.

    We will convene the EDH Interest Group, together with the 3DEP Interest Group, during the NSGIC Annual Meeting (Sep 20-24, 2021) in Dallas and hope to see you there. 

    This first project year (Sep 2020-2021) has focused on sharing information about elevation-derived hydrography experiences and resources. We have utilized the EDH Forum and the EDH Experience Inventory to exchange and document information. We will work with the smaller, task-based, NSGIC EDH for 3DNHD Working Group to review this information and derive a set of critical factors that effect the success of EDH initiatives. The critical factors will serve as the basis for determining the resources needed to support state and local derivation of hydrography from elevation data. If you are interested in participating in this dialog, and other project tasks, please join the EDH for 3DNHD Working Group via My.NSGIC.

    If you are a private sector company active in EDH we want to hear more about your projects. Please contact me directly and I will coordinate with you and your state NSGIC representative to facilitate the addition of your project information into the EDH Experience Inventory. Coordination with the NSGIC state representation ensures that projects are not duplicated and that the state representative is engaged. 

    Finally, we are pleased to announce that USGS has encouraged us to apply for continued project funding. If a second project year is awarded, we intend to continue the information exchange and to initiate the development of priority EDH resources. If you have suggestions for other project activities or objectives, please share them in this discussion list or contact Lynda Wayne, NSGIC Data for the Nation Project Manager.

     
    Thank you are for your continued interest and participation in the NSGIC EDH for 3DNHD project -

    Lynda



    ------------------------------
    Lynda Wayne
    NSGIC Data for the Nation Project Manager
    NSGIC / GeoMaxim
    Asheville NC
    8282544134
    Lynda.Wayne@nsgic.org
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  • 2.  RE: June EDH Forum and Project Update

    Posted 06-11-2021 15:45
    Here's my teaser for this talk:

    The Lake Superior Region of Wisconsin (Douglas, Bayfield, Ashland and Iron Counties) has experienced three 1000-year rainfall events since 2012 causing over $100M in infrastructure damages.  Because of the repeated storms and resulting damage, this region has become a laboratory for testing climate change adaptation strategies aimed at infrastructure. Many local road departments have had to replace the same culvert more than once, sparking a regionwide interest in developing culvert inventories, mainly for everyday asset management, but also for planning stream restoration, erosion control, aquatic species passage and flood reduction.   The Wisconsin Coastal Management Program, the GIO and the University of Wisconsin State Cartographer's Office have partnered on two NOAA Project of Special Merit grants to develop a coastal geospatial infrastructure consisting of a mapping community of practice (CoP), a cloud-based geospatial collaboration platform, and creation of a combined database of various culvert inventories in the region and surrounding states.  SCO project staff have worked with CoP members to design the culvert inventory database, and currently have about 25 collections with about 200,000 culvert and road/stream points ingested using ETF tools.  We are now targeting processes to assist smaller road departments with field collection and database analytics to assist with normal management duties but also to help document repetitive losses when floods occur.   Also developed was a process to identify cutlines in lidar derived DEMs, mainly culverts, needed to create hydro-enforced DEMs using the Agricultural Conservation Practice Framework (ACPF) developed by USDA-ARS.  Our NOAA coastal fellow researched GIS -based culvert vulnerability models using the heDEMs to construct "culvert catchments" and assess land cover characteristics that may indicate future risk of flood damage.  While creating a new model for updating the NHD was not part of this project, our experiences will inform our thinking about how EDH features are created in the rest of the state, how local knowledge of conditions are incorporated and what geospatial tools and data are most useful.  Our community of practice has a wide interest not only in the heDEM and derived hydro products, but also integrating new wetland mapping, repetitive high resolution land cover and land use data, all needed for a wide variety of climate adaptation and planning activities.   

    Jim Giglierano
    Wisconsin DOA



    Original Message


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