HWRF Users Page | Redirect> </head> <body> If you are not redirected automatically, follow this <a href='https://dtcenter.org/community-code/hurricane-wrf-hwrf'>link</a>.  <div id="ncarheader"> <img src="/HurrWRF/users/images/header_HurrWRF.jpg" alt="Website header"> </div> <div id="googlesearch"> <form name="google" method="get" action="http://www.google.com/search" > <a href="https://www2.ucar.edu/advanced-search">advanced</a> <input type=hidden name=hq value="site:www.ucar.edu"> <input type=submit name=sa value="Search UCAR"> <input type=text name=q size=12 maxlength=255> </form> </div> </div>  <div id="breadcrumb_nav"> <ul> <li>You are here: <a href="/index.php">DTC </a></li> <li>• <i>Hurricane WRF Users Page</i></li> </ul> </div> <div id="column_pagenav"> <div id="pagenav"> <div class="suckerdiv"> <ul id="suckertree1"> <li><a href="/HurrWRF/users/index.php">Home</a></li> <li><a href="/HurrWRF/users/others/index_termsofuse_HurrWRF.php">Terms of Use</a></li> <li><a href="/HurrWRF/users/overview/index.php">Overview</a></li> <li><a href="/HurrWRF/users/support/index.php">User Support</a> <ul>  <li><a href="/HurrWRF/users/support/release_notes/index.php">HWRF Release Notes</a></li> <li><a href="/HurrWRF/users/support/faqs/index.php">HWRF FAQ</a></li> <li><a href="/HurrWRF/users/support/known_issues/index.php">HWRF and Tracker Known Issues</a></li> <li><a href="/HurrWRF/users/support/datasets/index.php">Sources of HWRF Data</a></li> <li><a href="/HurrWRF/users/support/release_notes/index.tracker.php">GFDL Tracker Release Notes</a></li> <li><a href="/HurrWRF/users/support/index_help.php">Contact WRF for Hurricanes Help</a></li> </ul> </li> <li><a href="/HurrWRF/users/downloads/index.php">Downloads</a> <ul> <li><a href="/HurrWRF/users/downloads/ahw_download/index.php">AHW System</a></li> <li><a href="/HurrWRF/users/downloads/index.php">HWRF System</a></li> <li><a href="/HurrWRF/users/downloads/index.tracker.php">GFDL Vortex Tracker</a></li> <li><a href="/HurrWRF/users/downloads/observations/index.php">HWRF Datasets</a> <ul> <li><a href="/HurrWRF/users/downloads/observations/index.php">HWRF Datasets</a></li> <li><a href="/HurrWRF/users/downloads/observations/index.tracker.php">GFDL Tracker Datasets</a></li> </ul> </li> <li><a href="/HurrWRF/users/downloads/internal/index.php">Internal Info (UCAR only)</a> <ul> <li><a href="/HurrWRF/users/downloads/internal/index.php">Internal Info for HWRF (UCAR only)</a> <li><a href="/HurrWRF/users/downloads/internal/index.tracker.php">Internal Info for GFDL Tracker (UCAR only)</a> </ul> </li> </ul> </li> <li><a href="/HurrWRF/users/docs/index.php">Documentation</a></li> <li><a href="/HurrWRF/users/overview/hwrf_idealized.php">Idealized</a></li> <li><a href="/HurrWRF/users/tutorial/index.php">Tutorials & Workshops</a> <ul> <li><a href="/HurrWRF/users/tutorial/2018/index.php">Upcoming Tutorial</a></li> <li><a href="/HurrWRF/users/tutorial/index.php">Past Tutorials & Workshops</a></li> <li><a href="/HurrWRF/users/onlinetutorial/index.php">Online Tutorial</a></li> </ul> </li> <li><a href="/eval/hurricane">Testing and Evaluation</a></li> <li><a href="/HurrWRF/developers/index.php" target="_blank">HWRF Developers Info</a></li> <li><a href="/HurrWRF/users/others/index_links_HurrWRF.php">Additional Links</a></li> </ul> </div> </div> </div> <div id="wrap_pagecontent"> <div id="column_pagecontent"> <div id="pagefeature"> <div id="headingdiv"><h1>HWRF Idealized Overview </h1></div> </div> <h2>Description of HWRF Idealized</h2> <p> The Hurricane Weather Research and Forecast system (HWRF) Idealized capability is distributed with version 4.0a. </p> <p> The HWRF model has two classes of initialization: a) ideal vortex and b) real data. For more information on how to build and run HWRF, please refer to the <a href="http://www.dtcenter.org/HurrWRF/users/docs/users_guide/HWRF_v4.0a_UG.pdf" >Users Guide. </a></p> <p> The HWRF Idealized capability include a landfall option. Currently only GFDL Slab land surface physics option is supported for landfall capability and efforts are underway to include other land-surface physics options. A namelist file for land surface configuration introduces a switch for landfalling capability, specifies the type of land surface, initial land-surface temperature to be used over land. The default configuration introduces a homogeneous land surface but can be modified to account for heterogeneity through the source code. The direction of land motion can also be chosen. Two options are available – West to East or East to West. </p> <p> <b> At the time of HWRF v4.0a release, the landfall capability is broken. DTC is working on the fix. As soon as it is available, a patch will be released. </b> </p> <p> The idealized simulation requires 00-h and 120-h GFS GRIB2 forecasts, along with a sounding, specifications of the initial vortex, and a namelist. The idealized simulation is performed on the operational triple nested domain configuration, with grid spacings of 13.5-, 4.5- and 1.5-km. All the operational atmospheric physics, as well as the supported experimental physics options in HWRF, can be utilized in the idealized framework. The post processing can be done using the Unified Post-Processor. <p>  <p> Always look for <a href="http://www.dtcenter.org/HurrWRF/users/support/known_issues/index.php"> Known Issues </a>before setting up any experiment </p> <p> For the convience of the user community, sample GFS GRIB2 files for running the idealized case are provided. <ul> <li><a href="/HurrWRF/users/downloads/datasets/Idealized_2017/hwrfv3.9a_idealized.tar.gz">HWRF Idealized GFS test data</a></li> </p> <p> For more information, please refer to the <a href="http://www.dtcenter.org/HurrWRF/users/docs/users_guide/HWRF_v4.0a_UG.pdf" target="_blank" >HWRF Users Guide.</a> </p> </div> <div id="column_subcontent_wrap"> <div id="column_related_fullwidth1"> <div id="column_related_fullwidth1"> <h2>Events</h2> <div id="events"> <p>No Upcoming Events</p> </div> <div id="Announcements"> <h2>Announcements</h2> <ur> <li>5 November 2018</li> <p><a href="/node/631">HWRF v4.0a Release</a></p> <li>23-25 January 2018 <p><a href= "http://www.dtcenter.org/HurrWRF/users/tutorial/2018">Hurricane WRF Tutorial</a></p> </li> </ur> </div> <h2>Organizations contributing to this website</h2> <table border="0"> <tr> <td>Developmental Testbed Center <a href="http://www.dtcenter.org/" target="_blank" >(DTC)</a></td> </tr> <tr> <td> NCAR's Mesoscale & Microscale Meteorology Division <a href="http://www.mmm.ucar.edu/" target="_blank" >(MMM)</a></td> </tr> </table > </div> </div>  <div id="column_related_fullwidth1"> <h2>Sponsors of WRF for Hurricanes</h2> <table border="0"> <tr> <td><a href="http://www.noaa.gov/"><img src="/HurrWRF/users/images/NCAR_logo.jpg" alt="NCAR logo" width="120" height="120" /></a> </td> <td><a href="http://www.noaa.gov/"><img src="/HurrWRF/users/images/noaa_logo_small.gif" alt="NOAA logo" width="90" height="90" /></a> </td> </tr> <tr> <td><a href="http://www.ncar.ucar.edu" target="_blank" >National Center for Atmospheric Research (NCAR)</a> </td> <td><a href="http://www.noaa.gov/" target="_blank" >National Oceanic and Atmospheric Administration (NOAA)</a> </td> </tr> </table> </div> <div id="column_related_fullwidth1"> <h2> Community HWRF Website Visits since v4.0a</h2> <a href="https://m.maploco.com/details/4c45weqs"><img style="border:0px;" src="https://www.maploco.com/vmap/s/9910180.png" alt="Locations of Site Visitors" title="Locations of Site Visitors"/></a>  </div> </div> </div> <br class="clearboth"/>  <div id="footer"> <div id="footer"> <p> ©2023, DTC • Postal Address: P.O. 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