fix user emissivity AD

[BenjaminTJohnson]

For user specified surface emissivity and scattering cases, the surface emissivity jacobian can be corrected by changing one line code:
From
User_Emissivity_AD = ZERO
to
User_Emissivity_AD = sum(SfcOptics_AD%Emissivity(1:nZ,1))

Closes: #152

[chengdang]

Looks good! Thank you!

[BenjaminTJohnson]

@chengdang I want to write a ctest for this, so I will do one more update with the test before merging.

[quanhualiu]

The change has been tested and I approved it.

…

On Wed, Aug 7, 2024 at 3:13 PM Cheng Dang ***@***.***> wrote: ***@***.**** approved this pull request. Looks good! Thank you! — Reply to this email directly, view it on GitHub <#155 (review)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQCRLPFMVYP3GYBSCXCQJ63ZQJWT7AVCNFSM6AAAAABME5B5JWVHI2DSMVQWIX3LMV43YUDVNRWFEZLROVSXG5CSMV3GSZLXHMZDEMRVHE4TINRQGI> . You are receiving this because you were assigned.Message ID: ***@***.***>

[BenjaminTJohnson]

@chengdang would you mind testing again with the new ctests? test_User_Emissivity* Thanks!

[chengdang]

@BenjaminTJohnson Sorry that I missed the earlier message. Testing it now.

[chengdang]

All tests passed! Thanks Ben.

        Start  55: test_forward_User_Emissivity_atms_n21
 55/178 Test  #55: test_forward_User_Emissivity_atms_n21 ............   Passed    0.45 sec
        Start  56: test_forward_User_Emissivity_cris-fsr_n21
 56/178 Test  #56: test_forward_User_Emissivity_cris-fsr_n21 ........   Passed    0.36 sec
        Start  57: test_forward_User_Emissivity_v.abi_g18
 57/178 Test  #57: test_forward_User_Emissivity_v.abi_g18 ...........   Passed    0.06 sec
        Start  58: test_forward_User_Emissivity_atms_npp
 58/178 Test  #58: test_forward_User_Emissivity_atms_npp ............   Passed    0.02 sec
        Start  59: test_forward_User_Emissivity_cris399_npp
 59/178 Test  #59: test_forward_User_Emissivity_cris399_npp .........   Passed    0.10 sec
        Start  60: test_forward_User_Emissivity_v.abi_gr
 60/178 Test  #60: test_forward_User_Emissivity_v.abi_gr ............   Passed    0.06 sec
        Start  61: test_forward_User_Emissivity_abi_g18
 61/178 Test  #61: test_forward_User_Emissivity_abi_g18 .............   Passed    0.03 sec
        Start  62: test_forward_User_Emissivity_modis_aqua
 62/178 Test  #62: test_forward_User_Emissivity_modis_aqua ..........   Passed    0.03 sec
...

100% tests passed, 0 tests failed out of 178

Label Time Summary:
CRTM_Tests    = 185.87 sec*proc (178 tests)