CHELSA Bioclim

CHELSA-bioclim is a global, kilometer-scale climate dataset generated with the CHELSA downscaling model. It consists of bioclimatic variables. This is version 2.1.

IdentificationAbout this resource

Alternate Identifier: 8a7ed92b-00d9-43c4-b086-54d9251cf22a

Publication Date: 2022-12-16

Title: CHELSA Bioclim

Short Name: CHELSA

Abstract: CHELSA-bioclim is a global, kilometer-scale climate dataset generated with the CHELSA downscaling model. It consists of bioclimatic variables. This is version 2.1.

Dataset Language: English

Dataset Creator: Swiss Federal Research Institute WSL - Philipp Brun (Technical Staff)

Dataset Creator: Swiss Federal Research Institute WSL - Niklaus E. Zimmermann (Group Leader)

Dataset Creator: Swiss Federal Research Institute WSL | University of Bern - Chantal Hari ()

Dataset Creator: Swiss Federal Research Institute WSL | ETH Zürich - Loïc Pellissier (Associate Professor)

Dataset Creator: Swiss Federal Research Institute WSL - Dirk Nikolaus Karger (Senior Researcher)

Metadata Provider: SIB Swiss Institute of Bioinformatics - Chiara Bortoluzzi (Data Manager)

Keywords (None)

abiotic
climate
bioclim
CHELSA

Geographic Coverage

Geographic Description: Global

Bounding Box

West Bounding Coordinate: -180

East Bounding Coordinate: 180

North Bounding Coordinate: 90

South Bounding Coordinate: -90

Temporal Coverage

Range of Dates

Begin Date: 1971-01-01

End Date: 2100-12-31

resourceLicensesLicense Information

Intellectual Rights: This data package is released to the public domain under Creative Commons Zero - No Rights Reserved (CC0 1.0)

Resource License

License Name: Creative Commons Zero - No Rights Reserved (CC0 1.0)

URL: https://creativecommons.org/publicdomain/zero/1.0/

Distribution

Online

A brief description of the the content of online URL.: S3 cloud server

URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.unil.cloud.switch.ch%2Fchelsa02%2Fprefix=chelsa%2Fglobal%2Fbioclim%2F

• Project

Title: CHELSA Bioclim

Abstract: A multitude of physical and biological processes on which ecosystems and human societies depend are governed by the climate, and understanding how these processes are altered by climate change is central to mitigation efforts. We developed a set of climate-related variables at as yet unprecedented spatiotemporal detail as a basis for environmental and ecological analyses. We downscaled time series of near-surface relative humidity (hurs) and cloud area fraction (clt) under the consideration of orography and wind as well as near-surface wind speed (sfcWind) using the delta-change method. Combining these grids with mechanistically downscaled information on temperature, precipitation, and solar radiation, we then calculated vapor pressure deficit (vpd), surface downwelling shortwave radiation (rsds), potential evapotranspiration (pet), the climate moisture index (cmi), and site water balance (swb) at a monthly temporal and 30 arcsec spatial resolution globally from 1980 until 2018 (time-series variables). At the same spatial resolution, we further estimated climatological normals of frost change frequency (fcf), snow cover days (scd), potential net primary productivity (npp), growing degree days (gdd), and growing season characteristics for the periods 1981–2010, 2011–2040, 2041–2070, and 2071–2100, considering three shared socioeconomic pathways (SSP126, SSP370, SSP585) and five Earth system models (projected variables). Time-series variables showed high accuracy when validated against observations from meteorological stations and when compared to alternative products. Projected variables were also highly correlated with observations, although some variables showed notable biases, e.g., snow cover days.

Personnel

Organization Name: Swiss Federal Research Institute WSL

Individual Name

Given Name: Philipp

Surname: Brun

Position Name: Technical Staff

Personnel

Organization Name: Swiss Federal Research Institute WSL

Individual Name

Given Name: Dirk Nikolaus

Surname: Karger

Position Name: Senior Researcher

• Method

Method Step

Description: Based on mechanistically downscaled climate data, we developed a set of climate-related variables at yet unprecedented spatiotemporal detail as a basis for environmental and ecological analyses. We created gridded data for near-surface relative humidity (hurs), cloud area fraction (clt), near-surface wind speed (sfcWind), vapour pressure deficit (vpd), surface downwelling shortwave radiation (rsds), potential evapotranspiration (pet), climate moisture index (cmi), and site water balance (swb), at a monthly temporal and 30 arcsec spatial resolution globally starting 1980 until 2018. At the same spatial resolution, we further estimated climatological normals of frost change frequency (fcf), snow cover days (scd), potential net primary productivity (npp), growing degree days (gdd), and growing season characteristics for the periods 1981-2010, 2011-2040, 2041-2070, and 2071-2100, considering three shared socioeconomic pathways (SSP126, SSP370, SSP585) and five Earth system model.

Citation: Brun, P., Zimmermann, N.E., Hari, C., Pellisier, L., Karger, D.N. (2022) Global climate-related predictors at kilometre resolution for the past and future Earth System Science Data. 14, 5573–5603 https://doi.org/10.5194/essd-14-5573-2022

• Data Table

Name: bioclim

Physical

Data Format

Externally Defined Format

Format Name: COG

Attribute List

Attribute

Name: bio01

Label: Mean annual near-surface air temperature

Definition: Mean annual temperature calculated as the average of mean monthly temperatures over the year.

Standard Unit: celsius

Attribute

Name: bio02

Label: Mean diurnal near-surface air temperature range

Definition: Mean diurnal temperature range computed as the average of monthly (tasmax - tasmin)

Standard Unit: celsius

Attribute

Name: bio03

Label: Isothermality

Definition: Isothermality: 100 × (bio02 ÷ bio07); compares day–night variability to annual temperature range

Standard Unit: celsius

Attribute

Name: bio04

Label: Temperature seasonality

Definition: Temperature seasonality given by the standard deviation of mean monthly temperatures. Unit: °C/100

Standard Unit

Attribute

Name: bio05

Label: Mean daily maximum near-surface air temperature of the warmest month

Definition: Highest monthly mean of daily maximum temperatures (tasmax) across the year; indicates peak thermal conditions

Standard Unit: celsius

Attribute

Name: bio06

Label: Mean daily minimum near-surface air temperature of the coldest month

Definition: Lowest monthly mean of daily minimum temperatures (tasmin) across the year; characterises winter cold intensity

Standard Unit: celsius

Attribute

Name: bio07

Label: Annual daily mean near-surface air temperature range

Definition: Annual temperature range calculated as bio05 - bio06; measures amplitude between warmest and coldest months

Standard Unit: celsius

Attribute

Name: bio08

Label: Mean daily mean near-surface air of the wettest quarter

Definition: Average monthly mean temperature over the wettest 3-month period of the year

Standard Unit: celsius

Attribute

Name: bio09

Label: Mean daily near-surface air temperature of the driest quarter

Definition: Average monthly mean temperature over the driest 3-month period of the year

Standard Unit: celsius

Attribute

Name: bio10

Label: Mean daily mean near-surface air temperature of the warmest quarter

Definition: Average monthly mean temperature over the warmest 3-month period of the year

Standard Unit: celsius

Attribute

Name: bio11

Label: Mean daily mean near-surface air temperature of the quarter

Definition: Average monthly mean temperature over the coldest 3-month period of the year

Standard Unit: celsius

Attribute

Name: bio12

Label: Annual precipitation

Definition: Sum of monthly precipitation totals across the year

Standard Unit: kilogramPerMeterSquaredPerYear

Attribute

Name: bio13

Label: Precipitation of the wettest month

Definition: Maximum monthly precipitation total. Unit: kilogramPerMeterSquaredPerMonth

Standard Unit

Attribute

Name: bio14

Label: Precipitation of the driest month

Definition: Minimum monthly precipitation total. Unit: kilogramPerMeterSquaredPerMonth

Standard Unit

Attribute

Name: bio15

Label: Precipitation seasonality

Definition: Coefficient of variation (100 x SD ÷ mean) of monthly precipitation totals

Standard Unit: kilogramPerMeterSquared

Attribute

Name: bio16

Label: Mean monthly precipitation of the wettest quarter

Definition: Average monthly precipitation during the wettest 3-month period of the year. Unit: kilogramPerMeterSquaredPerMoth

Standard Unit

Attribute

Name: bio17

Label: Mean monthly precipitation of the driest quarter

Definition: Average monthly precipitation during the driest 3-month period of the year. Unit: kilogramPerMeterSquaredPerMonth

Standard Unit

Attribute

Name: bio18

Label: Mean monthly precipitation of the warmest quarter

Definition: Average monthly precipitation during the warmest 3-month period of the year. Unit: kilogramPerMeterSquaredPerMonth

Standard Unit

Attribute

Name: bio19

Label: Mean monthly precipitation of the coldest quarter

Definition: Average monthly precipitation during the coldest 3-month period of the year. Unit: kilogramPerMeterSquaredPerMonth

Standard Unit

Attribute

Name: cltmax

Label: Total cloud cover percentage maximum

Definition: Total cloud area fraction (reported as a percentage) for the whole atmospheric column as seen from the surface or the top of the atmosphere. Includes both large-scale and convective cloud

Standard Unit: percent

Attribute

Name: cltmean

Label: Total cloud cover percentage mean

Definition: Total cloud area fraction (reported as a percentage) for the whole atmospheric column as seen from the surface or the top of the atmosphere. Includes both large-scale and convective cloud

Standard Unit: percent

Attribute

Name: cltmin

Label: Total cloud cover percentage minimum

Definition: Total cloud area fraction (reported as a percentage) for the whole atmospheric column as seen from the surface or the top of the atmosphere. Includes both large-scale and convective cloud

Standard Unit: percent

Attribute

Name: cltrange

Label: Total cloud cover percentage range

Definition: Total cloud area fraction (reported as a percentage) for the whole atmospheric column as seen from the surface or the top of the atmosphere. Includes both large-scale and convective cloud

Standard Unit: percent

Attribute

Name: cmimax

Label: Monthly climate moisture index maximum

Definition: Monthly ratio of precipitation to potential evapotranspiration; indicator of climatic water availability

Standard Unit

Attribute

Name: cmimean

Label: Monthly climate moisture index mean

Definition: Monthly ratio of precipitation to potential evapotranspiration; indicator of climatic water availability

Standard Unit

Attribute

Name: cmimin

Label: Monthly climate moisture index minimum

Definition: Monthly ratio of precipitation to potential evapotranspiration; indicator of climatic water availability

Standard Unit

Attribute

Name: cmirange

Label: Monthly climate moisture index range

Definition: Monthly ratio of precipitation to potential evapotranspiration; indicator of climatic water availability

Standard Unit

Attribute

Name: fcf

Label: Frost change frequency

Definition: Number of freeze-thaw transitions per year. Unit: count

Standard Unit

Attribute

Name: fgd

Label: First day of the growing season TREELIM

Definition: Julian day marking the first occurrence of growing season conditions. Unit: julian day

Standard Unit

Attribute

Name: gdd0

Label: Growing degree days heat sum above 0 °C

Definition: Sum of daily mean temperature above 0 °C accumulated over the year

Standard Unit: celsius

Attribute

Name: gdd10

Label: Growing degree days heat sum above 10 °C

Definition: Sum of daily mean temperature above 10 °C accumulated over the year

Standard Unit: celsius

Attribute

Name: gdd5

Label: Growing degree days heat sum above 5 °C

Definition: Sum of daily mean temperature above 5 °C accumulated over the year

Standard Unit: celsius

Attribute

Name: gddlgd0

Label: Last growing degree day above 0 °C

Definition: Last day of the year above 0 °C

Standard Unit

Attribute

Name: gddlgd10

Label: Last growing degree day above 10 °C

Definition: Last day of the year above 10 °C

Standard Unit

Attribute

Name: gddlgd5

Label: Last growing degree day above 5 °C

Definition: Last day of the year above 5 °C

Standard Unit

Attribute

Name: gdgfgd10

Label: First growing degree day above 10 °C

Definition: Julian day of the first occurrence of a daily mean temperature above 10 °C. Unit: julian day

Standard Unit

Attribute

Name: gdgfgd5

Label: First growing degree day above 5 °C

Definition: Julian day of the first occurrence of a daily mean temperature above 5 °C. Unit: julian day

Standard Unit

Attribute

Name: gsl

Label: Growing season length

Definition: Number of days between the first and last occurrence of growing season conditions. Unit: days

Standard Unit

Attribute

Name: gsp

Label: Accumulated precipiation amount on growing season days

Definition: Total precipitation accumulated during the growing season period

Standard Unit

Attribute

Name: gst

Label: Mean temperature of growing season days

Definition: Average daily mean temperature over all growing season days

Standard Unit: celsius

Attribute

Name: hursmax

Label: Near-surface relative humidity maximum

Definition: The relative humidity with respect to liquid water for T above 0 °C and with respect to ice for T

Standard Unit

Attribute

Name: hursmean

Label: Near-surface relative humidity mean

Definition: The relative humidity with respect to liquid water for T above 0 °C and with respect to ice for T

Standard Unit

Attribute

Name: hursmin

Label: Near-surface relative humidity minimum

Definition: The relative humidity with respect to liquid water for T above 0 °C and with respect to ice for T

Standard Unit

Attribute

Name: hursrange

Label: Near-surface relative humidity range

Definition: The relative humidity with respect to liquid water for T above 0 °C and with respect to ice for T

Standard Unit

Attribute

Name: kg0

Label: Köppen-Geiger climate classification

Definition: Köppen–Geiger climate classification, 1=Af (equatorial fully humid), 2=Am (equatorial monsoonal), 3=As (equatorial summer dry), 4=Aw (equatorial winter dry), 5=BWk (cold desert), 6=BWh (hot desert), 7=BSk (cold steppe), 8=BSh (hot steppe), 9=Cfa (warm temperate fully humid hot summer), 10=Cfb (warm temperate fully humid warm summer), 11=Cfc (warm temperate fully humid cool summer), 12=Csa (warm temperate summer dry hot summer), 13=Csb (warm temperate summer dry warm summer), 14=Csc (warm temperate summer dry cool summer), 15=Cwa (warm temperate winter dry hot summer), 16=Cwb (warm temperate winter dry warm summer), 17=Cwc (warm temperate winter dry cool summer), 18=Dfa (snow fully humid hot summer), 19=Dfb (snow fully humid warm summer), 20=Dfc (snow fully humid cool summer), 21=Dfd (snow fully humid extremely continental), 22=Dsa (snow summer dry hot summer), 23=Dsb (snow summer dry warm summer), 24=Dsc (snow summer dry cool summer), 25=Dsd (snow summer dry extremely continental), 26=Dwa (snow winter dry hot summer), 27=Dwb (snow winter dry warm summer), 28=Dwc (snow winter dry cool summer), 29=Dwd (snow winter dry extremely continental), 30=ET (polar tundra), 31=EF (polar frost). Unit: category

Standard Unit

Attribute

Name: kg1

Label: Köppen-Geiger climate classification

Definition: Köppen–Geiger climate classification without As/Aw differenciation, 1=Af (equatorial fully humid), 2=Am (equatorial monsoonal), 3=As (equatorial summer dry), 4=Aw (equatorial winter dry), 5=BWk (cold desert), 6=BWh (hot desert), 7=BSk (cold steppe), 8=BSh (hot steppe), 9=Cfa (warm temperate fully humid hot summer), 10=Cfb (warm temperate fully humid warm summer), 11=Cfc (warm temperate fully humid cool summer), 12=Csa (warm temperate summer dry hot summer), 13=Csb (warm temperate summer dry warm summer), 14=Csc (warm temperate summer dry cool summer), 15=Cwa (warm temperate winter dry hot summer), 16=Cwb (warm temperate winter dry warm summer), 17=Cwc (warm temperate winter dry cool summer), 18=Dfa (snow fully humid hot summer), 19=Dfb (snow fully humid warm summer), 20=Dfc (snow fully humid cool summer), 21=Dfd (snow fully humid extremely continental), 22=Dsa (snow summer dry hot summer), 23=Dsb (snow summer dry warm summer), 24=Dsc (snow summer dry cool summer), 25=Dsd (snow summer dry extremely continental), 26=Dwa (snow winter dry hot summer), 27=Dwb (snow winter dry warm summer), 28=Dwc (snow winter dry cool summer), 29=Dwd (snow winter dry extremely continental), 30=ET (polar tundra), 31=EF (polar frost).

Standard Unit

Attribute

Name: kg2

Label: Köppen-Geiger climate classification

Definition: Köppen–Geiger climate classificationafter Peel et al. 2007, 1=Af (equatorial fully humid), 2=Am (equatorial monsoonal), 3=As (equatorial summer dry), 4=Aw (equatorial winter dry), 5=BWk (cold desert), 6=BWh (hot desert), 7=BSk (cold steppe), 8=BSh (hot steppe), 9=Cfa (warm temperate fully humid hot summer), 10=Cfb (warm temperate fully humid warm summer), 11=Cfc (warm temperate fully humid cool summer), 12=Csa (warm temperate summer dry hot summer), 13=Csb (warm temperate summer dry warm summer), 14=Csc (warm temperate summer dry cool summer), 15=Cwa (warm temperate winter dry hot summer), 16=Cwb (warm temperate winter dry warm summer), 17=Cwc (warm temperate winter dry cool summer), 18=Dfa (snow fully humid hot summer), 19=Dfb (snow fully humid warm summer), 20=Dfc (snow fully humid cool summer), 21=Dfd (snow fully humid extremely continental), 22=Dsa (snow summer dry hot summer), 23=Dsb (snow summer dry warm summer), 24=Dsc (snow summer dry cool summer), 25=Dsd (snow summer dry extremely continental), 26=Dwa (snow winter dry hot summer), 27=Dwb (snow winter dry warm summer), 28=Dwc (snow winter dry cool summer), 29=Dwd (snow winter dry extremely continental), 30=ET (polar tundra), 31=EF (polar frost).

Standard Unit

Attribute

Name: kg3

Label: Köppen-Geiger climate classification

Definition: Climate classification after Wissmann 1939, 1=I_A (Rainforest equatorial), 2=I_F (Rainforest weak dry period), 3=I_T (Savannah and monsoonal Rainforest), 4=I_S (Steppe tropical), 5=I_D (Desert tropical), 6=II_Fa (-), 7=II_Fb (-), 8=II_Tw (-), 9=II_Ts (-), 10=II_S (-), 11=II_D (-), 12=III_F (-), 13=III_Tw (Summer green and coniferous forest winter dry), 14=III_Ts (Summer green and coniferous forest cool etesien), 15=III_S (-), 16=III_D (-), 17=IV_F (Humid boreal forest), 18=IV_T (Winter dry boreal forest), 19=IV_S (Boreal steppe), 20=IV_D (Boreal desert), 21=V (Polar tundra), 22=VI (Polar frost).

Standard Unit

Attribute

Name: kg4

Label: Köppen-Geiger climate classification

Definition: Climate classification after Thornthwaite 1931, 1=Wet/Tropical, 2=Humid/Tropical, 3=Subhumid/Tropical, 4=Semiarid/Tropical, 5=Arid/Tropical, 6=Wet/Mesothermal, 7=Humid/Mesothermal, 8=Subhumid/Mesothermal, 9=Semiarid/Mesothermal, 10=Arid/Mesothermal, 11=Wet/Microthermal, 12=Humid/Microthermal, 13=Subhumid/Microthermal, 14=Semiarid/Microthermal, 15=Arid/Microthermal, 16=Wet/Taiga, 17=Humid/Taiga, 18=Subhumid/Taiga, 19=Semiarid/Taiga, 20=Arid/Taiga, 21=Wet/Tundra, 22=Humid/Tundra, 23=Subhumid/Tundra, 24=Semiarid/Tundra, 25=Arid/Tundra, 26=Wet/Frost, 27=Humid/Frost, 28=Subhumid/Frost, 29=Semiarid/Frost, 30=Arid/Frost.

Standard Unit

Attribute

Name: kg5

Label: Köppen-Geiger climate classification

Definition: Climate classification after Troll-Pfaffen, 1=I_1 (Polar ice-deserts), 2=I_2 (Polar frost-debris belt), 3=I_3 (Tundra), 4=I_4 (Sub-polar tussock grassland and moors), 5=II_1 (Oceanic humid coniferous woods), 6=II_2 (Continental coniferous woods), 7=II_3 (Highly continental dry coniferous woods), 8=III_1 (Evergreen broad-leaved and mixed woods), 9=III_2 (Oceanic deciduous broad-leaved and mixed woods), 10=III_3 (Sub-oceanic deciduous broad-leaved and mixed woods), 11=III_4 (Sub-continental deciduous broad-leaved and mixed woods), 12=III_5 (Continental deciduous broad-leaved and mixed woods as well as wooded steppe), 13=III_6 (Highly continental deciduous broad-leaved and mixed woods as well as wooded steppe), 14=III_7 (Deciduous broad-leaved and mixed wood and wooded steppe favoured by warmth but withstanding cold and aridity in winter), 15=III_7a (Thermophile dry wood and wooded steppe which withstands moderate to hard winters), 16=III_8 (Humid deciduous broad-leaved and mixed wood which favours warmth), 17=III_9 (High grass-steppe with perennial herbs), 18=III_9a (Humid steppe with mild winters), 19=III_10 (Short grass- or dwarf shrub-), 20=III_10a (Steppe with short grass dwarf shrubs and thorns), 21=III_11 (Central and East-Asian grass and dwarf shrub steppe), 22=III_12 (Semi-desert and desert with cold winters), 23=III_12a (Semi-desert and desert with mild winters), 24=IV_1 (Sub-tropical hard-leaved and coniferous wood), 25=IV_2 (Sub-tropical grass and shrub-steppe), 26=IV_3 (Sub-tropical thorn- and succulents-steppe), 27=IV_4 (Sub-tropical steppe with short grass hard-leaved monsoon wood and wooded-steppe), 28=IV_5 (Sub-tropical semi-deserts and deserts), 29=IV_6 (Sub-tropical high-grassland), 30=IV_7 (Sub-tropical humid forests (laurel and coniferous forests)), 31=V_1 (Evergreen tropical rain forest and half deciduous transition wood), 32=V_2 (Rain-green humid forest and humid grass-savannah), 33=V_2a (Half deciduous transition wood), 34=V_3 (Rain-green dry wood and dry savannah), 35=V_4 (Tropical thorn-succulent wood and savannah), 36=V_4a (Tropical dry climates with humid months in winter), 37=V_5 (Tropical semi-deserts and deserts). Unit: category

Standard Unit

Attribute

Name: lgd

Label: Last day of the growing season TREELIM

Definition: Julian day of the last occurrence of growing season conditions. Unit: julian day

Standard Unit

Attribute

Name: ngd0

Label: Number of growing degree days above 0 °C

Definition: Total number of days in a year with mean daily temperature above 0 °C. Unit: number of days

Standard Unit

Attribute

Name: ngd10

Label: Number of growing degree days above 10 °C

Definition: Total number of days in a year with mean daily temperature above 10 °C. Unit: number of days

Standard Unit

Attribute

Name: ngd5

Label: Number of growing degree days above 5 °C

Definition: Total number of days in a year with mean daily temperature above 5 °C. Unit: number of days

Standard Unit

Attribute

Name: npp

Label: Net primary production on land as carbon mass flux

Definition: Production of carbon' means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (rate of synthesis of biomass from inorganic precursors) by autotrophs ('producers') for example photosynthesis in plants or phytoplankton over the rate at which the autotrophs themselves respire some of this biomass. 'Productivity' means production per unit area. The phrase 'expressed_as' is used in the construction A_expressed_as_B where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A neglecting all other chemical constituents of A

Standard Unit

Attribute

Name: petmax

Label: Monthly potential evapotranspiration maximum

Definition: Total potential evapotranspiration for the month assuming unlimited water availability calculated based on Penman Monteith

Standard Unit

Attribute

Name: petmean

Label: Monthly potential evapotranspiration mean

Definition: Total potential evapotranspiration for the month assuming unlimited water availability calculated based on Penman Monteith

Standard Unit

Attribute

Name: petmin

Label: Monthly potential evapotranspiration minimum

Definition: Total potential evapotranspiration for the month assuming unlimited water availability calculated based on Penman Monteith

Standard Unit

Attribute

Name: petrange

Label: Monthly potential evapotranspiration range

Definition: Total potential evapotranspiration for the month assuming unlimited water availability calculated based on Penman Monteith

Standard Unit

Attribute

Name: rsdsmax

Label: Surface downwelling shortwave flux in air maximum

Definition: Surface solar irradiance for UV calculations

Standard Unit

Attribute

Name: rsdsmean

Label: Surface downwelling shortwave flux in air mean

Definition: Surface solar irradiance for UV calculations

Standard Unit

Attribute

Name: rsdsmin

Label: Surface downwelling shortwave flux in air minimum

Definition: Surface solar irradiance for UV calculations

Standard Unit

Attribute

Name: rsdsrange

Label: Surface downwelling shortwave flux in air range

Definition: Surface solar irradiance for UV calculations

Standard Unit

Attribute

Name: scd

Label: Snow cover days

Definition: Number of days per year with snow cover present at the surface. Unit: days

Standard Unit

Attribute

Name: sfcWindmax

Label: Near-surface wind speed maximum

Definition: Near-surface (usually 10 meters) wind speed

Standard Unit

Attribute

Name: sfcWindmean

Label: Near-surface wind speed mean

Definition: Near-surface (usually 10 meters) wind speed

Standard Unit

Attribute

Name: sfcWindmin

Label: Near-surface wind speed minimum

Definition: Near-surface (usually 10 meters) wind speed

Standard Unit

Attribute

Name: sfcWindrange

Label: Near-surface wind speed range

Definition: Near-surface (usually 10 meters) wind speed

Standard Unit

Attribute

Name: swb

Label: Soil water balance

Definition: Site water balance is the cumulative amount of water available throughout the year

Standard Unit: kilogramPerMeterSquaredPerYear

Attribute

Name: swe

Label: Snow water equivalent

Definition: Total water equivalent of snowpack accumulated over the year

Standard Unit: kilogramPerMeterSquaredPerYear

Attribute

Name: vpdmax

Label: Vapor pressure deficit maximum

Definition: Difference between the saturation vapor pressure and actual vapor pressure representing atmospheric drying power

Standard Unit: pascal

Attribute

Name: vpdmean

Label: Vapor pressure deficit mean

Definition: Difference between the saturation vapor pressure and actual vapor pressure representing atmospheric drying power

Standard Unit: pascal

Attribute

Name: vpdmin

Label: Vapor pressure deficit minimum

Definition: Difference between the saturation vapor pressure and actual vapor pressure representing atmospheric drying power

Standard Unit: pascal

Attribute

Name: vpdrange

Label: Vapor pressure deficit range

Definition: Difference between saturation vapor pressure and actual vapore pressure representing atmospheric drying power

Standard Unit: pascal

Default

IdentificationAbout this resource

Geographic Coverage

Bounding Box

Temporal Coverage

Range of Dates

resourceLicensesLicense Information

Resource License

Distribution

Online

Project

• Project

Personnel

Individual Name

Personnel

Individual Name

Methods

• Method

Method Step

Data Tables

• Data Table

Physical

Data Format

Externally Defined Format

Attribute List

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