Daily maps for global daylight length at 30 arc seconds resolution (2022)

Overview:

Daily maps for global daylight length, calculated for the year 2022.

Processing steps:

For each day within the year 2022, the photoperiod (sunshine hours on flat terrain) are calculated using the SOLPOS algorithm developed by the National Renewable Energy Laboratory (NREL), USA. Resultant values have been converted from hours to minutes.

File naming scheme (DDD = day within year) (min is abbreviation for minute):

daylight_min_2022_DDD.tif

Projection + EPSG code:

Latitude-Longitude/WGS84 (EPSG: 4326)

Spatial extent:

north: 90

south: -90

west: -180

east: 180

Spatial resolution:

30 arc seconds (approx. 1000 m)

Temporal resolution:

Daily

Pixel values:

unit: minutes

Software used:

GDAL 3.2.2 and GRASS GIS 8.2.0

Processed by:

mundialis GmbH & Co. KG, Germany ( https://www.mundialis.de/ )

Reference: National Renewable Energy Laboratory (NREL): SOLPOS 2.0 sun position algorithm ( https://www.nrel.gov/grid/solar-resource/solpos.html )

Date (Publication): 2022-10-25

Citation identifier: dataset

Status: Completed

Point of contact

mundialis GmbH & Co. KG - Markus Metz ( )

Maintenance and update frequency: As needed

Theme

daylength
photoperiod
environment
meteorology
MOOD-H2020

Place

Global

GEMET - INSPIRE themes, version 1.0

Meteorological geographical features

Use limitation: None

Access constraints: Other restrictions

Other constraints: no limitations to public access

Access constraints: Other restrictions

Use constraints: License

Other constraints: Creative Commons Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International (CC-BY-SA 4.0)

Other constraints: {"id":"cc-by-sa/4.0","name":"Creative Commons Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International","url":" http://creativecommons.org/licenses/by-sa/4.0/","quelle":"Source : mundialis GmbH & Co. KG"}

Aggregate Datasetindentifier: optionally add identifier of reference dataset here

Association Type: Cross reference

Spatial representation type: Grid

Distance: 30 arc-seconds

Language: English

Character set: UTF8

Topic category

Geoscientific information

Begin date: 2022-01-01

End date: 2022-12-31

Description: global

Reference system identifier: EPSG:WGS 84 (EPSG:4326)

Distribution format

GeoTIFF ( )

OnLine resource: Daily global daylight length (2022) ( WWW:LINK-1.0-http--download )

Hierarchy level: Dataset

Conformance result

Date (Publication): 2010-12-08

Other citation details: http://data.europa.eu/eli/reg/2010/1089/2014-12- 31

Explanation: See specified reference

Pass: Yes

Statement: calculated with SOLPOS 2.0 sun position algorithm ( https://www.nrel.gov/grid/solar-resource/solpos.html ) developed by National Renewable Energy Laboratory (NREL)