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ArcGIS Online Map Feature for NWS precipitation data in the Dallas/Fort Worth Metroplex 1 John  A.  McEnery,  University  of  Texas  at  Arlington   Gregory  P.  Shelton,  Na>onal  Weather  Service   Kulsawasd  Jitkajornwanich,  University  of  Texas  at  Arlington      

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Precipita*on  Data     Project   •  Collabora*on  of…   – University  of  Texas  at  Arlington   – Na*onal  Weather  Service  -­‐  West  Gulf  River   Forecast  Center  (NWS  –  Fort  Worth,  TX)   •  Funded  through…   – University  Corpora*on  for  Atmospheric  Research   (UCAR)    COMET  Partners  Program  with  support   from  the  Na*onal  Science  Founda*on    

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Data  Discovery  and   Integra*on  plaQorm   Data  Publica*on  plaQorm   Data  Synthesis  and   Research  plaQorm   Data  Services   HIS Central HydroDesktop HydroServer Water  Data  Services   Spa>al  Data  Services   Like search portals Google, Yahoo, Bing Like browsers Like web servers Like HTML UTA / NWS FOCUS WORKFLOW  DIAGRAM  OF  HIS  SYSTEM  

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•  Mul*-­‐sensor  Precipita*on  Es*mate   •  Gridded  hourly  es*mates   •  Forecasters  use  gauge  and  radar  es*mated   precipita*on  to  produce  a  “best  es*mate”   hourly  product   •  QA/QC  product  generated  at  the  RFC   MPE  

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Radar Coverage Map West Gulf River Forecast Center (WGRFC)

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RFC Multi-Sensor Precipitation Estimator (MPE) WSR-88D DHR DPA Hydro-Estimator Rain Gauges Lightning NWP model output

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Precipita*on  Best  Es*mate     •  “Best  Es*mate”  of  past   precipita*on   •  Human  quality  control  of   data  inputs   Gauge Radar Satellite Best Estimate (Multi-sensor Field)

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FRIDAY:    Precipita*on  Workshop  

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•  NWS  Hydrologic  Rainfall  Analysis  Project  (HRAP)  grid   coordinate  system.   •  Developed  to  make  it  feasible  to  mosaic  coverage   between  several  radars.   •  It  is  a  projec*on  like  other  projec*ons  used  in  GIS,   but  assumes  a  spheroid  rather  than  an  ellipsoid.   •  Approximately  4  km  x  4  km  grid  with  centers  located   by  la*tude,  longitude  and  also  HRAP  x-­‐  and  HRAP  y-­‐ coordinates.   •  MPE  values  are  cataloged  in  XMRG  files  based  upon   the  HRAP  grid  system   HRAP  Universal  Grid  System  

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HRAP  Centers  DFW  

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NWS  RFC  Service  Areas  

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Data  Transmission   Update  stream  via  Unidata  Local  Data   Manager  (LDM)   •  LDM  Connec*on  became  ac*ve  November   22nd,  2010.   – Routed  from  WGRFC  through  NWS  Southern   Region  Headquarters  and  then  to  UTA.   – Extremely  dedicated  effort  by  Mike  Thompson  of   NWS  to  coordinate  the  configura*on  for  LDM.  

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  •  A  component  of  the  University  of  Texas   System  opera*ng  as  a  regional  center.   •  Tier  III  facility  available  to  provide  fail  proof   capabili*es  for  mission  cri*cal  opera*ons.   •  State-­‐of-­‐the-­‐art  data  and  high  performance   compu*ng  center.   •  24/7  sysop  /  uninterruptable  power  /   security.   Arlington Regional Data Center (ARDC)  

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•  Enterprise  class  data  server   •  12    -­‐  3.5  GHz  HT  processing  cores   •  96    Gb  memory   •  2TB  disk  system  for  OS  and  log  files  in   separate  RAID  1  and  RAID  10  arrays   •  18  TB  integrated  storage  for  fast  IO  func*ons   in  RAID  5  array   •  MS  Server  2008,  SQL  Server  2008  &  ArcGIS   Server   ARDC System

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•  SQL  Scalability  Considera*ons   •  Archived  &  Current  Daily  MPE  (1995-­‐  Present)   available  for  en*re  RFC  service  area.   •  Archived  &  Current  Hourly  MPE  (1997-­‐  Present)   available  for  en*re  RFC  service  area.   •  Project  has  created  a  mesh  of  “virtual  rain  gages”   stretched  over  the  landscape   WGRFC Project Status

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Dataset within Tarrant / Dallas Counties

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WGRFC-­‐MPE  (HRAP  centers)  U.S.  &  Mexico  

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Tropical Storm Hermine - Hourly Time Series Arlington, TX Tabular Data Time Series Data

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Time Series Graph – Daily Data – Tarrant County, TX

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Tropical Storm Hermine Hourly Time Series Arlington, TX

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Tropical Storm Hermine Hourly Time Series –– Arlington, TX

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ABRFC-MPE

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LMRFC-MPE

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Complete Texas Coverage

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Entire MPE Coverage

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•  4  en*re  U.S.  States   – Texas,  Oklahoma,  Arkansas,  Louisiana     •  9  par*al  U.S.  States  and  parts  of  Mexico   •  136,166  HRAP  cell  centers  at  4  km  x  4km   •  Approximately  840,000  square  miles  of   coverage   •  Updated  Hourly   MPE System Coverage

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•  Partners  include  TRWD,  NWS,  USGS  &  USACE.   •  TRWD  primary  func*ons  manages  an  extensive           flood  control  system  in  Tarrant  County.   –  27  miles  of  floodway  levees  designed  by  the  U.  S.  Army  Corps  of   Engineers.     –  System  provides  flood  protec*on  to  residents  along  the  West  and  Clear   Forks  of  the  Trinity  River.     •  Adding  mul*ple  data  sources  to  informa*on  stream.     –  MPE,  QPF,    stream  flow,  lake  levels,  reservoir  release  rates.     Project Expansion   Fort Worth Floodway Data Project

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TRWD  Data  System  Flow  Diagram  

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U.S  Army  Corps  of  Engineers    

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U.S  Army  Corps  of  Engineers    

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•  Proposal  to  located  antenna,  receiver  and  decoder  at  Arlington   Regional  Data  Center.   •  UTA  to  manage  ALERT  data  for  City  of  Arlington.   •  Mee*ng  with  mul*ple  municipali*es  to  coordinate  one  local   regional  repository  for  exchange  of  ALERT  data  so  that  all   surrounding  communi*es  can  share  informa*on.  UTA  as   custodian  hos*ng  the  data  at  ARDC  server.   City of Arlington ALERT System

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•  NOAA's  Na*onal  Severe  Storms  Laboratory   –  one  of  NOAA's  interna*onally  known  Environmental  Research   Laboratories   –  serves  the  na*on  by  working  to  improve  the  lead  *me  and  accuracy  of   severe  weather  warnings   •  NSSL  Q2  (next-­‐genera*on  QPE)  Radar  QPE.   –  High  resolu*on   –  Accurate   –  Very  short  term  quan*ta*ve  precipita*on  product   –  joint  ini*a*ve  between  the  NOAA/NSSL,  NOAA/NWS/OHD  and  the   NOAA  Office  of  Climate,  Water,  and  Weather  Services  (OCWSS)   •  Q2  products  are  derived  from  the  Na*onal  3-­‐D  Reflec*vity   Mosaic  grid.   –  NEXRAD  based  product.   High Resolution Precipitation Data

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•  UTA  is  receiving  the  Q2  Precipita*on  Rate   (PCP_RATE)  Product       –  Precipita*on  rate  at  5  minute  frequency   –  Spa*al  resolu*on:  approximately  1km  x  1km   •  This  radar-­‐derived  product  using     –  the  Q2  precipita*on  classifica*on  process  and     –  adap*ve  Z–R  rela*onships     –  for  applica*ons  in  flash  flood  monitoring  and  predic*on.   •  LDM  is  used  at  UTA  to  receive  Q2  products  in  real-­‐ *me.   •  Coverage  received  at  UTA  is  the  Q2  Tile  6.   High Resolution Precipitation Data

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National Severe Storms Laboratory - Q2

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•  Applica*ons  in  development  for  the  North  Texas  Region   •  The  informa*onal  sources  include   –  NWS     –  TRWD   –  Municipal  Governments  (Fort  Worth,  Arlington)   –  US  Army  Corps  of  Engineers   –  US  Geological  Survey   •  Primary  goal:   –  Provide  a  uniform  source  of  situa*onal  awareness  for  flood  hazards   –  Combining:   •  Precipita*on  values   •  ALERT  data  and  stream  gauge  measurements   •  Mapped  low  water  crossings   Broader Impacts – Next Steps  

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•  Esri  ArcGIS  Server  newly  installed  at  ARDC   – Capability  for  display  of  HIS  data  in  map  feature   services  for  public  observa*on  of  condi*ons.   GIS Map Feature for Web

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Additional Server

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Operational Sequence •  Data initially housed in SQL on HydroDB. •  Python script sends WaterML formatted request for current point values to REST endpoint on HydroDB. •  Process adopted from script by Harish Sangireddy / UT-Austin. •  Current point values written to ArcGIS geodatabase on HydroGIS. •  ArcGIS Server publishes REST service providing geodatabase as a layer. •  Flexviewer configured to display MPE values layer. •  Flexviewer provides initial extents and pop-up options. • Python script refreshes geodatabase each hour.

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Map Feature

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Map Feature

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Map Feature

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Map Feature

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Text…

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Additional Data Sets to Add - Surrounding Counties - Forecast Precipitation - Corps lake releases - USGS gages - TRWD gages - ALERT gages for Cities of Fort Worth & Arlington -  NMQ high resolution precip estimate from NOAA (5-min. 1km x 1km).

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Planned Feature Development - Apply a color symbology to color code the displayed points corresponding to rainfall amounts. - Overlay watershed boundaries and low water crossings - A slider bar to move through time and display the movement of an event over the area step-by- step - More robust pop-up dialog box (download function). - Additional choices under the More…. button for selection of the various data sets listed above. - Additional choices under the More…. button for selection of derivative values like past 15, 30, 45 minute, 3 hour, 6 hour or 12 hour precip accumulations. - Migrate to ArcGIS Online.

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Internet Address Or Contact by E-mail: [email protected] http://hydrogis.uta.edu/flexviewer/

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    Ques>ons  /  Comments?       50 John  A.  McEnery,  University  of  Texas  at  Arlington     Gregory P. Shelton, National Weather Service Kulsawasd  Jitkajornwanich,  University  of  Texas  at  Arlington