QAA l2w_parameters syntax

Technical questions about ACOLITE
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thibaut
Posts: 7
Joined: Fri Jul 13, 2018 8:33 am

QAA l2w_parameters syntax

Post by thibaut »

Dear Quinten,

I am trying to compute Kd using the QAA implemented in ACOLITE.

I am using the command-line interface of the github version in Linux, with the syntax indicated in the documentation for my settings file: "l2w_parameters=kd443_qaasw". But I am a getting a "Parameter kd443_qaasw not computed" message.

After having a quick look at the code, I tried another syntax successfully: "qaa_v5_Kd_443".

Did I misunderstood the documentation, or could there be a discrepancy with the code?

I can also provide complete settings and log files if it can help.

Many thanks in advance !

Thibaut
quinten
Posts: 1021
Joined: Tue Mar 03, 2015 8:13 am

Re: QAA l2w_parameters syntax

Post by quinten »

Hi Thibaut

Are you using the generic Python version (since April in acolite/acolite) or the previous Landsat/Sentinel-2 version (now at acolite/acolite_ls2)?

I need to update the manual to align with the new generic version. I aim to do this at the same time as releasing a new binary version based on the generic code. My apologies for the confusion! With this version you can get all qaa parameters by specifying l2w_parameters=qaa

Or pick any combination of these (with v5 and v6 the specific versions, and vw a weighted output:

Code: Select all

qaa_Kd443_v5
qaa_Kd443_v6
qaa_Kd443_vw
qaa_Kd490_v5
qaa_Kd490_v6
qaa_Kd490_vw
qaa_Kd560_v5
qaa_Kd560_v6
qaa_Kd560_vw
qaa_Kd665_v5
qaa_Kd665_v6
qaa_Kd665_vw
qaa_KdPAR_vw

qaa_a443_v5
qaa_a443_v6
qaa_a443_vw
qaa_a490_v5
qaa_a490_v6
qaa_a490_vw
qaa_a560_v5
qaa_a560_v6
qaa_a560_vw
qaa_a665_v5
qaa_a665_v6
qaa_a665_vw

qaa_bbp443_v5
qaa_bbp443_v6
qaa_bbp443_vw
qaa_bbp490_v5
qaa_bbp490_v6
qaa_bbp490_vw
qaa_bbp560_v5
qaa_bbp560_v6
qaa_bbp560_vw
qaa_bbp665_v5
qaa_bbp665_v6
qaa_bbp665_vw

qaa_rrs443
qaa_rrs490
qaa_rrs560
qaa_rrs665

qaa_u443
qaa_u490
qaa_u560
qaa_u665
Quinten
thibaut
Posts: 7
Joined: Fri Jul 13, 2018 8:33 am

Re: QAA l2w_parameters syntax

Post by thibaut »

Hi Quinten,

I am using the generic version in acolite/acolite, hence the issue indeed.

Thank you for the explanation and for detailing these parameters here !

Thibaut
quinten
Posts: 1021
Joined: Tue Mar 03, 2015 8:13 am

Re: QAA l2w_parameters syntax

Post by quinten »

Hi Thibaut

The list I posted before is in fact not correct! :oops:

You can either request "qaa", "qaa5", "qaa6", or follow the new naming for individual parameters. I also did a small update on the parameter selection procedure.

Generic:

Code: Select all

qaa_rrs_443
qaa_u_443
qaa_rrs_490
qaa_u_490
qaa_rrs_560
qaa_u_560
qaa_rrs_665
qaa_u_665
V5:

Code: Select all

qaa_v5_a_560
qaa_v5_bbp_560
qaa_v5_bbp_443
qaa_v5_a_443
qaa_v5_Kd_443
qaa_v5_bbp_490
qaa_v5_a_490
qaa_v5_Kd_490
qaa_v5_Kd_560
qaa_v5_bbp_665
qaa_v5_a_665
qaa_v5_Kd_665
qaa_v5_KdPAR_Nechad
V6:

Code: Select all

qaa_v6_a_665
qaa_v6_bbp_665
qaa_v6_bbp_443
qaa_v6_a_443
qaa_v6_Kd_443
qaa_v6_bbp_490
qaa_v6_a_490
qaa_v6_Kd_490
qaa_v6_bbp_560
qaa_v6_a_560
qaa_v6_Kd_560
qaa_v6_Kd_665
qaa_v6_KdPAR_Nechad
qaa_v6_KdPAR_Lee
qaa_v6_Zeu_Lee
Quinten
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