This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
devel:eubrewnetconfiguration [2022/10/20 07:53] 127.0.0.1 external edit |
devel:eubrewnetconfiguration [2023/09/20 14:07] jlsolano [Cosine Correction] |
||
---|---|---|---|
Line 443: | Line 443: | ||
In the configuration, the user can provide | In the configuration, the user can provide | ||
- | * A table with five columns: angle (between 0 and 90 degrees), and angular responses in the N, S, W, and E directions (**as of February 2022, only the angular response in the N direction is used**) | + | * A table with five columns: angle (between 0 and 90 degrees), and angular responses (measurements from the CR file normalized to the maximum value at 0 degrees) in the N, S, W, and E directions, see the next figure (**as of February 2022, only the angular response in the N direction is used**) |
- | * Fields with default values for the albedo, Angström's alpha and beta, and the cloud cover. These meteorological parameters will be used if no information for a specific day is provided in the following table. | + | {{ :devel:arf_measurement.png?direct&400 |}} |
- | * A table with 5 columns: date (in YYYY-MM-DD format), albedo, Angström's alpha, Angström's beta, and cloud cover. | + | * Fields with default values for the albedo, Angström's alpha and beta, and the cloud cover. These meteorological parameters will be used if no information for a specific day is provided in the following table. |
+ | |||
+ | * A table with 5 columns: date (in YYYY-MM-DD format), albedo, Angström's alpha, Angström's beta, and cloud cover. The cloud cover takes values from 0 to 1, and the cosine correction is only calculated for values lower than 0.9 | ||
These data are used to calculate the cosine correction in the level 2 UV product. For the calculation itself we use a modified version of the [[https://github.com/pec0ra/buvic|Brewer UV Irradiance Calculator (BUVIC)]] developed by Basile Maret and Julian Gröbner at the [[https://www.pmodwrc.ch/en/home/|PMOD/WRC]]. | These data are used to calculate the cosine correction in the level 2 UV product. For the calculation itself we use a modified version of the [[https://github.com/pec0ra/buvic|Brewer UV Irradiance Calculator (BUVIC)]] developed by Basile Maret and Julian Gröbner at the [[https://www.pmodwrc.ch/en/home/|PMOD/WRC]]. |