Effects of nonlinear observation operators for visible and infrared radiances in ensemble data assimilation

<p><br>Description</p> <p>Dataset to accompany the first revision of the manuscript "Effects of nonlinear observation operators for visible and infrared radiances in ensemble data assimilation" for the QJRMS.</p> <p>Contains&nbsp;<br>- experiments (one folder per experiment)<br>&nbsp; each contains&nbsp;<br>&nbsp; - diagnostics (DART format) for each assimilation time<br>&nbsp; &nbsp; - obs_seq.final: assimilation output&nbsp;<br>&nbsp; &nbsp; - obs_seq.final-linear: contains linear posterior as "prior" ("evaluate" at +1s after analysis)<br>&nbsp; &nbsp; - obs_seq.final-evaluate: at analysis time (includes DART clamping), at 1s after analysis time: "nonlinear posterior"<br>&nbsp; - config file DART-WRF for each experiment (python format)</p> <p>- code<br>&nbsp; &nbsp; assim_tools_mod.f90: DART code modification to compute the linear posterior</p> <p>- other data: &nbsp;see v1 of this repository!<br>&nbsp; &nbsp; nature run initial conditions (WRF format)<br>&nbsp; &nbsp; forecast ensemble initial conditions (WRF format)<br>&nbsp; &nbsp; script to read "obs_seq.final"-files into pandas.DataFrame (python format)</p> <p><br>Experiment naming:<br>VIS ... visible reflectance 0.6 micrometer assimilation<br>WV73 ... infrared 7.3 micrometer assimilation<br>obs10 ... observation density: 1 observation per 10x10 km of domain area<br>obs30 ... 1 observation per 30x30 km<br>loc10 ... localization radius: 10 km<br>inf0 ... no prior nor posterior covariance inflation in the assimilation<br>sec0 ... no sampling error correction<br>reject ... not assimilating observations with a small first-guess departure &lt;= 0.03</p> <p><br>Experiment names used in Figures</p> <p>Section 3.1<br>- Figure 2a: exp_v1.23_P2_rr+1_VIS_obsi211_loc20_inf0<br>- Figure 2b: exp_v1.23_P2_rr+1_VIS_obsi360_loc20_inf0</p> <p>Section 3.2.1&nbsp;<br>- Figure 3: exp_v1.23_P2_rr+1_VIS_obs30_loc14_inf0</p> <p>Section 3.2.2<br>- Figure 4: exp_v1.23_P2_rr+1_VIS_obs10_loc20, exp_v1.23_P2_rr+1_VIS_obs10_loc20_reject</p> <p>Section 3.3<br>- Figures 5a,c: exp_v1.23_P2_rr+1_T2M_obs10_loc20_inf0_sec0<br>- Figures 5b,5d,7a: exp_v1.23_P2_rr+1_VIS_obs10_loc20_inf0_sec0<br>- Figure 6a,6b,7b: exp_v1.23_P2_rr+1_WV73_obs10_loc20_inf0_sec0</p> <p>&nbsp;</p>