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)

Citation proposal
(2022) . Daily maps for global daylight length at 30 arc seconds resolution (2022). https://gdk.gdi-de.org/geonetwork/srv/api/records/97448e4f-e214-405a-95cc-6137f4379b6a

INSPIRE
SDS

INSPIRE

Identification

File identifier: 97448e4f-e214-405a-95cc-6137f4379b6a XML

Hierarchy level: Dataset

Online resource

Protocol: WWW:LINK-1.0-http--download

Resource identifier

code: dataset

Metadata language: English

Spatial representation type: Grid

Encoding

Format: GeoTIFF

Version

Projection

code: EPSG:WGS 84 (EPSG:4326)

Classification of data and services

Topic category

Geoscientific information

Classification of data and services

Coupled resource

Classification of data and services

Coupled resource

Keywords

GEMET - INSPIRE themes, version 1.0 ( Theme )

Meteorological geographical features

Other keywords

Keywords ( Theme )

daylength
photoperiod
environment
meteorology
MOOD-H2020

Keywords ( Place )

Global

Geographic coverage

Temporal reference

Temporal extent

Date ( Publication ): 2022-10-25

Quality and validity

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

Distance: 30 arc-seconds

Conformity

Explanation: See specified reference

Restrictions on access and use

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

Access 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"}