Zero Albedo in output and restart file

[BarryHLynn]

The Albedo and background albedo (ALBBCK)values were all 0s in the inner, d02 domain.

We compiled with the Intel compiler.

We expected to be able to map out albedo with other output variables, but albedo has zero values in both the output and restart files.

Here are the domain settings: note that albedo -- with other land surface variables -- is being interpolated to the D02 domain. The mapping factors are not zero. The Land Use has values, and so does the terrain, as well as XLAT and XLONG.

&time_control
Run_days = 0,
run_hours = 0,
run_minutes = 01,
run_seconds = 00,
start_year = 2017, 2017, 2017, 2017,
start_month = 09, 09, 09, 09,
start_day = 07, 07, 07, 07,
start_hour = 00, 00, 00, 06,
start_minute = 00, 00, 00, 00,
start_second = 00, 00, 00, 00,
end_year = 2017, 2017, 2017, 2017,
end_month = 09, 09, 09, 09,
end_day = 07, 07, 07, 07,
end_hour = 18, 18, 18, 18,
end_minute = 00, 00, 00, 00,
end_second = 00, 00, 00, 00,
interval_seconds = 10800
input_from_file = .true.,.False.,.false.,.false.,
history_interval = 180, 10, 10, 10,

max_dom = 2,
s_we = 1, 1, 1, 1,
e_we = 451,604, 901, 901, 601,
s_sn = 1, 1, 1, 1,
e_sn = 451,604, 901, 901, 601,
s_vert = 1, 1, 1, 1,
e_vert = 51, 51, 51, 51,
p_top_requested = 5000,
num_metgrid_soil_levels = 4,
num_metgrid_levels = 32,
dx = 4000,1333.33, 444.444, 1000,
dy = 4000,1333.33, 444.444, 1000,
grid_id = 1, 2, 3, 4, 5,
parent_id = 0, 1, 2, 3, 4,
i_parent_start = 0, 130, 160, 160, 50,
j_parent_start = 0, 130, 180, 180, 50,
parent_grid_ratio = 1, 3, 3, 3,
parent_time_step_ratio = 1,

[kkeene44]

@BarryHLynn
Can you let me know which version of WRF you're running and attach the full namelist.input file? Thanks!

[dudhia]

I think he said it was V4.6.

…

On Mon, Nov 4, 2024 at 6:11 PM Kelly Werner ***@***.***> wrote: @BarryHLynn <https://github.com/BarryHLynn> Can you let me know which version of WRF you're running and attach the full namelist.input file? Thanks! — Reply to this email directly, view it on GitHub <#2128 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AEIZ77D75W5DZZKDV3HNOXDZ7AELLAVCNFSM6AAAAABRE2PWXOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDINJWGAYTMOBQGA> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[BarryHLynn]

namelist.doc.pdf
README.doc.pdf

[BarryHLynn]

I tried verifying that these albedo values were non zero in the LSM, but they printed out as zero.

[kkeene44]

@BarryHLynn
Thanks for supplying the files. Unfortunately I was not able to repeat the issue. I compiled with ifort 2021.10.0 (compiler option 50). I used my own dates and domain, but used all of your namelist settings, otherwise. As a test, can you try to compile a new version of WRF (the latest - V4.6.1) and test it again?

[BarryHLynn]

Okay, we can do that. We were compiling with option 15.

[kkeene44]

@BarryHLynn
I tried with compiling with option 15 and got the same result as I did with option 50.

[BarryHLynn]

Hello: I have now tried version 6.1. I did add a registry listing for dust, but did not make any other changes. I still do not get any non zero albedo values Could it be because we are starting the run several days after the start of the 4 km nest? I don't see why this should matter. Barry (0) LAND USE CATEGORY: min=1 max=17 (0) Terrain Height: min=-9.53674e-07 max=2298.3 (0) ALBEDO: min=0 max=0 (0) BACKGROUND ALBEDO: min=0 max=0 (0) SURFACE SKIN TEMPERATURE: min=295.275 max=334.117

…

On Wed, Nov 13, 2024 at 5:34 PM Kelly Werner ***@***.***> wrote: @BarryHLynn <https://github.com/BarryHLynn> I tried with compiling with option 15 and got the same result as I did with option 50. — Reply to this email directly, view it on GitHub <#2128 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AKWLWRQ5R6IDKPEUT4O2FUL2APHXBAVCNFSM6AAAAABRE2PWXOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDINZUHE2TSNBQGQ> . You are receiving this because you were mentioned.Message ID: ***@***.***>

-- Barry H. Lynn, Ph.D Senior Scientist, Lecturer, The Institute of Earth Sciences, The Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Israel Tel: 972 547 231 170 Fax: (972)-25662581 Weather It Is, LTD Weather and Climate Focus https://weather-it-is.com <http://weather-it-is.com> Jerusalem, Israel Local: 02 930 9525 Cell: 054 7 231 170 Int-IS: x972 2 930 9525