added computation of noise strength kernel

[evcano]

Hi @danielpeter,

I added some subroutines to compute and save the noise strength kernel as done in the SPECFEM3D_CARTESIAN and GLOBAL versions.

Feel free to modify at your convenience, Best wishes.

[buildbot-princeton]

The files changed require a buildbot test. Buildbot has started.

[buildbot-princeton]

Your changes passed the buildbot test. See build 793.

[codecov-commenter]

Codecov Report

Patch coverage: 6.66% and project coverage change: -0.08 :warning:

Comparison is base (4511264) 54.41% compared to head (0c9431c) 54.34%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## devel #1177 +/- ## ========================================== - Coverage 54.41% 54.34% -0.08% ========================================== Files 162 162 Lines 29526 29571 +45 ========================================== + Hits 16066 16069 +3 - Misses 13460 13502 +42 ``` | [Impacted Files](https://codecov.io/gh/SPECFEM/specfem2d/pull/1177?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=SPECFEM) | Coverage Δ | | |---|---|---| | [src/specfem2D/noise\_tomography.f90](https://codecov.io/gh/SPECFEM/specfem2d/pull/1177?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=SPECFEM#diff-c3JjL3NwZWNmZW0yRC9ub2lzZV90b21vZ3JhcGh5LmY5MA==) | `32.59% <0.00%> (-4.33%)` | :arrow_down: | | [src/specfem2D/prepare\_wavefields.f90](https://codecov.io/gh/SPECFEM/specfem2d/pull/1177?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=SPECFEM#diff-c3JjL3NwZWNmZW0yRC9wcmVwYXJlX3dhdmVmaWVsZHMuZjkw) | `83.93% <25.00%> (-1.25%)` | :arrow_down: | | [src/specfem2D/compute\_kernels.f90](https://codecov.io/gh/SPECFEM/specfem2d/pull/1177?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=SPECFEM#diff-c3JjL3NwZWNmZW0yRC9jb21wdXRlX2tlcm5lbHMuZjkw) | `23.37% <50.00%> (+0.20%)` | :arrow_up: | | [src/specfem2D/save\_adjoint\_kernels.f90](https://codecov.io/gh/SPECFEM/specfem2d/pull/1177?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=SPECFEM#diff-c3JjL3NwZWNmZW0yRC9zYXZlX2Fkam9pbnRfa2VybmVscy5mOTA=) | `22.48% <50.00%> (+0.13%)` | :arrow_up: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=SPECFEM). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=SPECFEM)

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[danielpeter]

great, looks good. that was quick!

[danielpeter]

accept

On 10 Mar 2023, at 1:45 PM, buildbot-princeton @.**@.>> wrote:

Your changes passed the buildbot test. See build 793https://urldefense.com/v3/__http://specfem2d-buildbot.princeton.edu/builders/specfem2d_builder/builds/793__;!!Nmw4Hv0!0wjuws8maVskfizELx2GX3gTYPAh2BT0U6vlLzFgOHJc_U5-lc58wYyjrT8XuOgK7zJZgfJSbn7JgbAaEwJ9s6hBMhsT6PY$.

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