yosata/AtmosphericModel
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Joost van den Born committed 2022-03-23 08:55:21 +00:00
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@@ -110,7 +110,7 @@ Input parameters for the spherical atmosphere models (all but the first):
- xc - CO2 density [ppm] - xc - CO2 density [ppm]
- lat - Latitude [deg] - lat - Latitude [deg]
- h - Height above sea level [m] - h - Height above sea level [m]
- l - Wavelength(s) [um] - l - Wavelength(s) [μm]
- z - Zenith angle [deg] - z - Zenith angle [deg]
An example - To calculate the atmospheric refraction we set up a `refraction()` object. This requires the latitude and altitude of the observer. The atmospheric dispersion is calculated similarly, but by exchanging the `refraction()` object by a `dispersion()` object and parsing two refractive indices into the `cassini()` function. An example - To calculate the atmospheric refraction we set up a `refraction()` object. This requires the latitude and altitude of the observer. The atmospheric dispersion is calculated similarly, but by exchanging the `refraction()` object by a `dispersion()` object and parsing two refractive indices into the `cassini()` function.
@@ -195,6 +195,7 @@ Included are
| Bonsch & Potulski (1998) | `BonschPotulski()` | Allows for any temperature, pressure, humidity and CO2 density. | | Bonsch & Potulski (1998) | `BonschPotulski()` | Allows for any temperature, pressure, humidity and CO2 density. |
| Birch & Downs (1994) | `BirchDowns()` | Only at standard atmosphere. Function requires wavelength only. | | Birch & Downs (1994) | `BirchDowns()` | Only at standard atmosphere. Function requires wavelength only. |
| Peck & Reeder (1972) | `PeckReeder()` | Only at standard atmosphere. Function requires wavelength only. | | Peck & Reeder (1972) | `PeckReeder()` | Only at standard atmosphere. Function requires wavelength only. |
| Mathar (2006) | `Mathar()` | Allows for temperature, pressure and humidity specification. Works best at wavelengths above 1.4 μm. |
| Hohenkerk & Sinclair (1985) | `HohenkerkAndSinclair()` | Based on Barrell & Sears equation. Generally, gives slightly larger values.| | Hohenkerk & Sinclair (1985) | `HohenkerkAndSinclair()` | Based on Barrell & Sears equation. Generally, gives slightly larger values.|
| Hohenkerk & Sinclair (1985) | `slalib()` | Uses pySLALIB to retrieve the refractive index at standard atmospheric conditions.| | Hohenkerk & Sinclair (1985) | `slalib()` | Uses pySLALIB to retrieve the refractive index at standard atmospheric conditions.|
@@ -226,9 +227,10 @@ Presently, several observatories are known. These can all be found in the `obser
| Roque de los Muchachos Observatory (La Palma) | `LA_PALMA` | GTC, INT, WHT, NOT, and others. | | Roque de los Muchachos Observatory (La Palma) | `LA_PALMA` | GTC, INT, WHT, NOT, and others. |
| La Silla Observatory | `LA_SILLA` | ESO 3.6m telescope, NTG, BlackGEM and others. | | La Silla Observatory | `LA_SILLA` | ESO 3.6m telescope, NTG, BlackGEM and others. |
| Las Campanas Observatory | `LAS_CAMPANAS` | Site of the future GMT. | | Las Campanas Observatory | `LAS_CAMPANAS` | Site of the future GMT. |
| Mauna Kea Observatory (Hawaii) | `MAUNA_KEA` | Location of Keck, Subaru, Gemini North and others.|
## Other ## Other
This package also contains a python native port of the `SLA_REFRO()` routine of the pyslalib package, which was originally written in FORTRAN by P.T. Wallace. It can be called directly using `sla_refro()`. When using the same units as the other refraction functions, you might prefer using `slalib_refraction()` or `slalib_dispersion()`. Do note that this implementation is slower than the (compiled) FORTRAN implementation. This package also contains a python native port of the `SLA_REFRO()` routine of the pyslalib package, which was originally written in FORTRAN by P.T. Wallace. It can be called directly using `sla_refro()`. When using the same units as the other refraction functions, you might prefer using `slalib_refraction()` or `slalib_dispersion()`. Do note that this implementation is slower than the (compiled) FORTRAN implementation.
Finally, the dispersion model used by Alexei Filippenko in 1982 is also included. This model is a combination of the (modified) Edlèn equation and a plane-parallel atmospheric geometry. This calculation can be accessed by calling the `Filippenko1982()` function. Finally, the dispersion model used by Alexei Filippenko in 1982 is also included. This model is a combination of the (modified) Edlèn equation and a plane-parallel atmospheric geometry. This calculation can be accessed by calling the `Filippenko1982()` function.