Use of SMAP L3_E Data in LIS

[dfrancis827]

I have successfully ran through the testcases in tutorial, including the assimilation of open-loop and SMAP Level 3 soil moisture estimates. However, I am attempting to assimilate SMAP Level 3 Enhanced (9 km) soil moisture using the NOAH 3.6 LSM and following the same steps described in the tutorial. I am able to do the following: (1) Process LSM parameters using LDT, (2) Conduct an Open Loop run over my domain (lower left lat/long: 38.831, -84.781 upper right lat/long: 39.147, -84.355, dx/dy: 0.01), (3) Create an ensemble restart file, (4) Construct CDF from OL run, and (5) Construct CDF from SMAP L3_E data. However. when I attempt to run assimilation between OL and SMAP L3_E data, I do not get the "DAOBS" folder as an output in the SMAPDA_OUTPUT directory. Because of this, I get multiple errors when running LVT on the SMAP assimilation saying missing files. I have attached my config file for the LIS assimilation run.

Based on comparing my attempt at running LIS over a smaller domain and smaller resolution, is it possible that I am attempting to use too small of a domain and/or too fine a resolution to be able to successfully assimilate L3_E data?

lis.config_noah36_smapda_L3E.txt

[bmcandr]

Hi @dfrancis827, can you also share your lislog.0000 file?

[dfrancis827]

Certainly, I have attached my lislog_smapda.0000 file. I did have to run LIS again to create this file due to myself running it with 36 km SMAP L3 data after posting this discussion. After rerunning LIS with 9 km SMAP L3_E data, I did get the DAOBS folder, but with less OBS files than were shown in the tutorial. However, when I run the LVT for SMAP DA obs and OL DA and then try and plot point data at a given point, I do not get any SMAP observations plotted. I get the OL plot and the DA plot, but no SMAP observations. I have also attached the LVT config files for both OL and SMAP runs, my location file, and my plot file.

lislog_smapda.0000.txt
lvt.config.ol.da.txt
lvt.config.smapDAobs.txt
lvtlog.smapDAobs.0000.txt
lvtlog_ol_da.0000.txt
plot_noah36_smapda_DoeRun.txt
TS_LOCATIONS.TXT

[guesswhoam]

Hi @dfrancis827, I’m facing the same issue with SMAPDA_OUTPUT/DAOBS/ not generating files in Step 6 of the LISF Public Testcase. Have you resolved this problem? Any insights would be appreciated!

Thanks,

[dfrancis827]

It’s been a couple years since I worked with this, but I believe I fixed the issue. If I recall correctly, there were quality control flags within the code that were flagging the L3 Enhanced moisture I was attempting to assimilate. If I recall correctly, the main control flag that was problematic was that of vegetative water content (VWC). I was working with data over heavily vegetated areas, so I had to go in and adjust the control flag to allow for L3 enhanced from areas with higher VWC to be included in the assimilation. Once I did that, I was able to get the DAOBS folder and continue my work. If this sounds like the issue you’re having, email me at [email protected] and I’ll help with where the control flags are in the code.

[guesswhoam]

Hi @dfrancis827, I emailed you about this issue at [email protected] from my email address ([email protected]) a while ago but haven't heard back. I'm wondering if perhaps my email went to your spam folder? If you could check your spam/junk folder or let me know if there's a better way to reach you, I'd greatly appreciate it. Thanks!