Module Daily Insolation over Latitude
Orbital parameters used here are based on the work of Andre L. Berger and its implementation from the NASA Goddard Institute for Space Studies (GISS). Berger's orbital parameters are considered to be valid for approximately 1 million years.
References:
- Berger, A.L. (1978): Long Term Variations of Daily Insolation and Quaternary Climatic Changes. Journal of the Atmospheric Sciences, volume 35(12), 2362-2367.
- Berger, A.L. (1978): A Simple Algorithm to Compute Long Term Variations of Daily or Monthly Insolation. Institut d'Astronomie et de Geophysique, Universite Catholique de Louvain, Louvain-la-Neuve, No. 18.
- NASA/GISS' implementation can be found as part of an Atmosphere-Ocean Model at Determination of the Earth's Orbital Parameters
- Author: O.Conrad (c) 2012
- Specification: grid
- Menu: Climate|Earth's Orbital Parameters
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Output | Solar Radiation | Table (output) | SOLARRAD | - | - |
| Options | Start [ka] | Floating point | START | - | Default: -200.000000 |
| Stop [ka] | Floating point | STOP | - | Default: 2.000000 |
| Step [ka] | Floating point | STEP | - | Minimum: 0.001000
Default: 1.000000 |
| Latitude Increment [Degree] | Integer | DLAT | - | Minimum: 1
Maximum: 90
Default: 5 |
| Day of Year | Integer | DAY | - | Minimum: 0
Maximum: 366
Default: 181 |
Command-line
Usage: saga_cmd climate_tools 4 [-SOLARRAD <str>] [-START <str>] [-STOP <str>] [-STEP <str>] [-DLAT <num>] [-DAY <num>]
-SOLARRAD:<str> Solar Radiation
Table (output)
-START:<str> Start [ka]
Floating point
Default: -200.000000
-STOP:<str> Stop [ka]
Floating point
Default: 2.000000
-STEP:<str> Step [ka]
Floating point
Minimum: 0.001000
Default: 1.000000
-DLAT:<num> Latitude Increment [Degree]
Integer
Minimum: 1
Maximum: 90
Default: 5
-DAY:<num> Day of Year
Integer
Minimum: 0
Maximum: 366
Default: 181