<div dir="ltr">Dear all,<br><br>
<p>Following changes were committed to the <span class="gmail-m_6257526792145018271gmail-il">FV3</span> git repository:</p>
<p>Task <a class="gmail-m_6257526792145018271gmail-m_-6780548771464525723gmail-issue gmail-m_6257526792145018271gmail-m_-6780548771464525723gmail-tracker-28 gmail-m_6257526792145018271gmail-m_-6780548771464525723gmail-status-1 gmail-m_6257526792145018271gmail-m_-6780548771464525723gmail-priority-4 gmail-m_6257526792145018271gmail-m_-6780548771464525723gmail-priority-default gmail-m_6257526792145018271gmail-m_-6780548771464525723gmail-parent" title="Task: In-line documentation for 2017 GFS cumulus convection schemes (New)" href="https://vlab.ncep.noaa.gov/redmine/issues/41313" target="_blank">#41313</a>: various interpolation methods to output fields in history file and accumulated precipitation rate<br><br>1) sfc pressure is interpolated through bilinear interpolation with non-dimensionalized pressure: (ps/stndrd_atmos_ps)**(rd_over_g*stndrd_atmos_lapse).<br><br>2) 3D winds from dynamics, 10 meter winds and model lowest level winds from physics are interpolated though vector interpolation. Winds generated through the vector interpolation pass through pole smoothly compared to winds from scalar interpolation. <br><br>3) Radiation fields, 2 meter temperature/specific humidity, and precipitation rate from physics are interpolated though bilinear, all other fields are interpolated though "nearest neighbor". The fields from bilinear interpolation are much smoother than the fields interpolated through nearest neighbor.<br><br>4)A new option to output accumulated precip rate is added. The logical variable lprecip_accu is added to physics namelist. By default lprecip_accu is .true., and model will output accumulated precip. If lprecip_accu is .false., old precip rate with bucket length fhzero will be output.<br><br>A full list of history file output fields along with the interpolation methods are documented<br><br><a href="https://docs.google.com/spreadsheets/d/19vD0KqcYBKD5-1P-7S1Z-8YMNCJhM6_sCUGbLbc-ZD4/edit#gid=1714203536">https://docs.google.com/spreadsheets/d/19vD0KqcYBKD5-1P-7S1Z-8YMNCJhM6_sCUGbLbc-ZD4/edit#gid=1714203536</a></p><p>If you have any question, please contact me. <br></p><p>Thanks.<br></p><p><br></p><p>Jun<br></p></div>