CLASSIC CSV output column content of HelioClim-3 webservices | Last update: Dec. 2017 |
Select your service to retrieve the correct description:
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HCmonth
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
year | month | Irradiance | Lower bound | Upper bound | Nb valid days | Top of Atmosphere | Clear-Sky | Irradiation | Irradiation J/cm² |
- year
- month: number of the month in the year
- irradiance (GHI) averaged over the period in W/m² (-999 if no data)
- lower bound of the uncertainty on the irradiance values in W/m²
- upper bound of the uncertainty on the irradiance values in W/m²
- Nb valid days: number of valid days in the month
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in W/m²
- Cls: typical irradiance averaged over the period if the sky were clear in W/m²
- Irradiation (GHI): monthly mean of daily irradiation in Wh/m² (-999 if no data)
- Irradiation (GHI): monthly mean of daily irradiation in J/cm² (-999 if no data)
HCweek
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
year | month | day | Irradiance | Lower bound | Upper bound | Nb valid days | Top of Atmosphere | Clear-Sky | Irradiation | Irradiation J/cm² |
- year
- month: number of the month in the year
- day: number of the first day of each week in the month
- irradiance (GHI) averaged over the period in W/m² (-999 if no data)
- lower bound of the uncertainty on the irradiance values in W/m²
- upper bound of the uncertainty on the irradiance values in W/m²
- Nb valid days: number of valid days in the week
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in W/m²
- Cls: typical irradiance averaged over the period if the sky were clear in W/m²
- Irradiation (GHI): weekly mean of daily irradiation in Wh/m² (-999 if no data)
- Irradiation (GHI): weekly mean of daily irradiation in J/cm² (-999 if no data)
HCday
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
month | day | Irradiance | Lower bound | Upper bound | Nb slots | Top of Atmosphere | Clear-Sky | Irradiation | Irradiation J/cm² |
- year
- month: number of the month in the year
- day: number of the day in the month
- irradiance (GHI) averaged over the period in W/m² (-999 if no data)
- lower bound of the uncertainty on the irradiance values in W/m²
- upper bound of the uncertainty on the irradiance values in W/m²
- Nb slots (%): ratio of the number of valid slots and the number of slots during the daylength in percent (%)
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in W/m²
- Cls: typical irradiance averaged over the period if the sky were clear in W/m²
- irradiation (GHI) over the period in Wh/m² (-999 if no data)
- irradiation (GHI) over the period in J/cm² (-999 if no data)
HChour
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
month | day | time | Irradiance | Lower bound | Upper bound | code | Top of Atmosphere | Clear-Sky | Irradiation |
- year
- month: number of the month in the year
- day: number of the day in the month
- time: hour in the day
- irradiance (GHI) averaged over the period in W/m² (-999 if no data)
- lower bound of the uncertainty on the irradiance values in W/m²
- upper bound of the uncertainty on the irradiance values in W/m²
- code: 0: no data; 1: sun below horizon; 2: satellite assessment; 5: interpolation in time
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in W/m²
- Cls: typical irradiance averaged over the period if the sky were clear in W/m²
- irradiation (GHI) over the period in Wh/m² (-999 if no data)
HC15
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
month | day | time | Irradiance | Lower bound | Upper bound | Code | Top of Atmosphere | Clear-Sky | Irradiation |
- year
- month: number of the month in the year
- day: number of the day in the month
- time: decimal hour in the day
- irradiance (GHI) averaged over the period in W/m² (-999 if no data)
- lower bound of the uncertainty on the irradiance values in W/m²
- upper bound of the uncertainty on the irradiance values in W/m²
- code: 0: no data; 1: sun below horizon; 2: satellite assessment; 5: interpolation in time
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in W/m²
- Cls: typical irradiance averaged over the period if the sky were clear in W/m²
- irradiation (GHI) over the period in Wh/m² (-999 if no data)
More information about the lower and upper bounds
From the comparisons between HelioClim-3 and the ground station measurements, a classification (bins) of bias which mostly depends on the sun position in the sky is derived. These bins are then used to compute the lower and upper bounds of the GHI for the hour slot. With this algorithm, nothing guaranties that the upper bound is lower than the clear sky value and effectively, it happens that mostly for near clear sky days that the upper bound is higher than the clear sky value.
These bounds are intended to give an estimate of the error. Here are the expressions:
Lower bound = I + relativeBias - relativeStandardDeviation
Upper bound = I + relativeBias + relativeStandardDeviation
...where the "relativeBias" and the "relativeStandardDeviation" are computed from the comparison of HelioClim-3 and the station measurements. There is a 68% chance that the actual value is comprised between lower and upper bounds.
HCmonthincl
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
Month | Nb valid days | Direct Inclined | Diffuse Inclined | Reflected | Global Inclined | Direct Horiz | Diffus Horiz | Global Horiz | Top of Atmosphere |
- year
- month: number of the month in the year
- Nb valid days: number of valid days in the month
- Direct inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Reflected inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Global inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Direct horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in Wh/m²
HCdayIncl
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
Month | Day | Direct Inclined | Diffuse Inclined | Reflected | Global Inclined | Direct Horiz | Diffus Horiz | Global Horiz | Top of Atmosphere |
- year
- month: number of the month in the year
- day: number of the day in the month
- Direct inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Reflected inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Global inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Direct horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in Wh/m²
HChourIncl
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
Month | Day | Hour | Direct Inclined | Diffuse Inclined | Reflected | Global Inclined | Direct Horiz | Diffus Horiz | Global Horiz | Top of Atmosphere |
- year
- month: number of the month in the year
- Day: number of the day in the month
- Hour in the day
- Direct inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Reflected inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Global inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Direct horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in Wh/m²
HC15incl
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
Month | Day | Hour | Direct Inclined | Diffuse Inclined | Reflected | Global Inclined | Direct Horiz | Diffus Horiz | Global Horiz | Top of Atmosphere |
- year
- month: number of the month in the year
- Day: number of the day in the month
- Hour: decimal hour in the day
- Direct inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Reflected inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Global inclined irradiation averaged over the period in Wh/m² (-999 if no data)
- Direct horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in Wh/m²
HCmonthTracking
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
Month | Nb valid days | Direct NI | Diffuse NI | Reflected | Global NI | Direct Horiz | Diffus Horiz | Global Horiz | Top of Atmosphere |
- year
- month: number of the month in the year
- Nb valid days: number of valid days in the month
- Direct NI: direct normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse NI: diffuse normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Reflected normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global NI: global normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Direct horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in Wh/m²
HCdayTracking
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
Month | Days | Direct NI | Diffuse NI | Reflected | Global NI | Direct Horiz | Diffus Horiz | Global Horiz | Top of Atmosphere |
- year
- month: number of the month in the year
- Days: number of the day in the month
- Direct NI: direct normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse NI: diffuse normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Reflected normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global NI: global normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Direct horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in Wh/m²
HChourTracking
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
Month | Day | Hour | Direct NI | Diffuse NI | Reflected | Global NI | Direct Horiz | Diffus Horiz | Global Horiz | Top of Atmosphere |
- year
- month: number of the month in the year
- Day: number of the day in the month
- Hour in the day
- Direct NI: direct normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse NI: diffuse normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Reflected normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global NI: global normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Direct horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in Wh/m²
HC15Tracking
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
Month | Day | Hour | Direct NI | Diffuse NI | Reflected | Global NI | Direct Horiz | Diffus Horiz | Global Horiz | Top of Atmosphere |
- year
- month: number of the month in the year
- Day: number of the day in the month
- Hour: decimal hour in the day
- Direct NI: direct normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse NI: diffuse normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Reflected normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global NI: global normal irradiation averaged over the period in Wh/m² (-999 if no data)
- Direct horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Diffuse horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- Global horizontal irradiation averaged over the period in Wh/m² (-999 if no data)
- ToA: downwards irradiance averaged over the period at the top of the atmosphere (extraterrestrial) in Wh/m²