Challenges in Latin-American Water Resources 2012: Dominican Republic

Civil and Environmental Engineering, Brigham Young 

Project Updates

  • Final Reports
    Our team's report, poster, videos, and other information are now available on our Final Reports page. Thanks to all for a great experience.
    Posted Apr 11, 2012, 9:10 AM by Rob Sowby
  • In country
    We've spent the last few days working at the INDRHI offices in Santo Domingo. Antonio Mendez is the INDRHI engineer assigned to assist our team. We've reviewed the project reports done in the 1970s and are trying to update them with new data and new demands.

    This week we visited the project site, developed GSSHA and HMS models to study flood control, and made mass curves to analyze demand and storage potential. Over the next couple weeks we'll be writing our final report.

    Posted Apr 2, 2012, 10:42 AM by Rob Sowby
  • Frequency storms and CN
    Erik analyzed the available precip data to determine frequency storms. With no other references in the area available, Erik decided to check frequency storms in Florida. Good idea! As it turns out, the magnitudes were similar for Florida and our own data.

    We also settled on a curve number of 86 for our HEC-HMS models. The soil data and WMS gave us a composite CN of 73, but our models were consistently below actual flow volumes during those events. Assuming that most precip occurs during the rainy season and that wet antecedent conditions apply, we felt it reasonable to adjust the CN up to 86, which more closely matches historical data.

    This week we'll be doing floodplain delineation in HEC-RAS and making final preparations for the trip (March 11-19).
    Posted Mar 8, 2012, 5:48 PM by Rob Sowby
  • 16 Days, HydroServer
    We have the watershed modeled in WMS and are working on calibrating HMS and GSSHA models to streamflow and flow-duration curves. We also have an elevation-capacity curve and soon hope to have an elevation-discharge curve for the reservoir. Sam is looking for sources on impacts and benefits of similar projects.

    I finally got all the available INDRHI data loaded into our new database and set up the Brigham Young University HydroServer ( to host this and other datasets. Precip and flow data for the DR are now available for public query, analysis, and download.
    Posted Mar 8, 2012, 5:53 PM by Rob Sowby
  • Amina Flow Data
    Here are the data and stats for streamflow at our site (based on 28 years of data from INDRHI, 1967-1995). We should be betting more recent data soon.
    Posted Feb 9, 2013, 8:46 AM by Rob Sowby
  • Project Management Plan
    Last week Eric and I began our PMP (Google Doc) and outlined some of the main tasks and dates. This is intended to be a dynamic, descriptive document, rather than prescriptive, so we'll need to evaluate and modify it as we work. Some things in it are pretty well defined; others are more ambiguous and will need to be updated later. Overall I think it gives us some good direction and will help guide our work.
    Posted Feb 9, 2013, 8:45 AM by Rob Sowby
  • Amina document
    Our new assignment is Amina, which appears to be the largest of the proposed reservoirs. I uploaded the INDRHI document and a rough Google translation (under Files) for Erik's and my benefit. Please read it and prepare any questions.
    Posted Feb 9, 2013, 8:47 AM by Rob Sowby
  • New team site
    I set up this Google Site for our team today. It will host our Project Management Plan, team info, project info, and serve as a resource for sharing and communication.
    Posted Feb 9, 2013, 8:43 AM by Rob Sowby
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