HMT-Southeast Pilot Study Concluding

Dear HMT-Southeast community,

hmt.sepsAs summer draws to a close, the HMT-Southeast Pilot Study (HMT-SEPS) is also nearing the end of its ~16-month field deployment period. We want to thank you, the HMT-Southeast community, for a successful field project that has certainly proven to be a foundation upon which many meaningful partnerships have been built. We would like to take this opportunity to provide a summary of HMT-SEPS activities and future plans, and in addition, we hope that this correspondence will encourage community dialogue regarding ongoing and future related projects.

The summary below aims to highlight some select HMT-SEPS project accomplishments over the past couple of years. For additional information on HMT-SEPS in general, earlier documents can be found here and the HMT-SEPS Facebook page provides a useful timeline of HMT activities and events in the region. In addition, you can always feel free to contact our HMT-SEPS team with additional questions or follow-up.

Review of HMT-SEPS objectives:

  • The objective of the HMT-Southeast Pilot Study was to provide advanced hydrometeorological observations focused in western North Carolina, with some instrumentation also located in central and coastal NC.
  • HMT-SEPS was made possible by partnering with NASA’s IPHeX ground validation campaign.
  • HMT-SEPS was also able to identify and pursue several key Southeast-focused “science questions” targeting operationally-relevant heavy-precipitation-related topics (see “Research” below)

Observations, Instrumentation, and Field Deployment:

  • Four wind profiling radars and six surface meteorology sites were installed by NOAA HMT. Most of this instrumentation (with the exception of New Bern, NC) will be removed from the field beginning October 2014.
  • Two NC DENR/DAQ-owned wind profilers (Clayton, NC and Charlotte, NC) were repaired/upgraded and brought back on-line. These systems will continue to operate under the NC DENR/DAQ and data will continue to be available online through HMT and MADIS.
  • Observations have been available in real-time for all users since 2013, and archived data will remain available for download and data analysis.
  • HMT supported additional radiosonde balloon launches during IPHeX thanks to UNC-Asheville faculty and students.
  • HMT supported gap-filling radar observations during IPHEX thanks to NSSL staff and students from the Univ. of OK.
  • Support from the NOAA Hurricane Sandy Supplemental (Disaster Relief Act) has allowed us to add three new Atmospheric River Observatories in the Southeast; these will remain through the 2015 hurricane season.

HMT-SEPS research has been driven by the following main themes:

  • The Climatology of Southeast US Extreme Precipitation Events (Lead by ESRL PSD, B. Moore et al. 2014 (MWR, in press))
  • SE US QPF error climatology (Efforts ongoing at ESRL PSD, North Carolina State University; Baxter et al. 2014)
  • Case Studies of heavy precipitation events (e.g., a 2013 western NC flash flood)
  • Heavy precipitation processes and the relevance of “atmospheric rivers” to heavy SE precipitation (Efforts ongoing at ESRL PSD)
  • Bulk microphysical characteristics of NC precipitation observed with disdrometers and vertically pointing precipitation profilers; assess performance of default NEXRAD rainfall algorithms. (ESRL PSD)
  • Performance assessment of radar, gauge, and multi-sensor QPE in the upper Catawba river basin (ESRL PSD, OHD)

Work along all of these themes will continue into FY15 thanks in large part to support from the Sandy Supplemental funding. We plan to keep posting publication information and presentations on research findings on the HMT-Southeast Documents page. Please feel free to be in touch for additional details about any of these projects.

Collaborations and partnerships:

We have been incredibly fortunate to have established fruitful partnerships with many groups and individuals in our HMT-Southeast community. From supporting university students to learning from WFO forecasters who have been in the trenches during heavy precipitation events of interest, any success that HMT-SEPS can claim is very much attributable to our interactions with all of you.

Some of our key partnerships over the past few years have included: NASA, Duke, NCSU, CSTAR/USWRP, UNCA, NCAR, WPC, NSSL, NWS Eastern Region, and NWS WFOs (GSP and RAH in particular!). This is by no means a complete list, and it has been our pleasure to work with everyone in this uniquely engaged and motivated meteorological community.

The Future:

  • The New Bern, NC ARO will remain in place for an additional 12 months (through November 2015).
  • The 3 new AROs at Johns Island, SC, Moss Point, MS and Sydney, FL will operate through November 2015. Observations can be accessed here.
  • Research studies will continue as outlined above with support provided by NOAA ESRL PSD and the Sandy Supplemental funding award. Several collaborative efforts will also continue (e.g., NCSU/CSTAR, QPE/OHD) thanks to external support as well.
  • Additional and/or future HMT efforts in the Southeast US will be determined by external interest and available funding.

We hope to remain engaged with the HMT-Southeast community as we continue to make progress on research efforts as described above, and we aim to present and publish our findings on these projects throughout the next year or so. We also plan to continue to serve the community by continuing to host HMT-SEPS observations for download, as well as make ourselves available for future collaborations on relevant regional endeavors.

Please feel free to be in touch with any questions, comments, or project feedback. We look forward to future collaborations. Sincerely,

The NOAA HMT Southeast Team

Kelly Mahoney

Rob Cifelli

Ellen Sukovich

Allen White

Clark King

 

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