Atmosphere Monitoring

The CAMS solar radiation productsMarion Schroedter-Homscheidt (DLR)with Armines (L. Wald, M. Lefèvre, B. Gschwind), Transvalor (E. Wey, L. Saboret) and FMI (A. Arola, W. Wandji) contributions withinCAMS-72

AtmosphereMonitoring

The CAMS Radiation Service (CAMS-72)

Scattering throughclouds andaerosols

diffuseirradiance

direct and diffuseirradiance

Global irradiance

Absorption fromclouds,

aerosols, ozone andwater vapour

diffuseirradiance

Directnormal

irradiance

UV

© MODIS

AtmosphereMonitoring

Method development

irradiance,cloud free irradiance© EUMETSAT/DLR

cloudsfrom

satellite

Heliosat-4 and McClear

physical approaches,fast radiative

transfer

© MEEO

News: - removing several

inconsistencies in McClear - new scheme how to use

CAMS aerosol- bias correction in implementation

AtmosphereMonitoring

The CAMS Radiation Service portal

• start in 2004• after 1-2 days delay online

• global, diffuse, direct and direct normal irradiation

• time series• 1 min, 15 min, 1 hour, 1 day,

1 month temporal resolution

• interactive and OGC scriptaccess possible

Time series of clear sky (cloud-free) irradiation in global coverage and all-sky irradiation in Europe/Africa/Middle East

AtmosphereMonitoring

User specific solar radiation information

© BMU

© BMU

© TSK Flagsol

© DLR

Materials& life time

UV & health

Ecosystems

Solar Technologies

AtmosphereMonitoring

CAMS Radiation Service new usages

• Selecting publicly available, representative solar radiationmeasurements to show added value of new solar technologies (EC PreFlexMS project)

• Consultancy in energy monitoring of buildings• Optimization algorithm for residential buildings• Spectral distribution of the surface incident irradiation –

effect on the PV cell technology• Low altitude solar drone flight time optimization• Study of a generic hybrid ventilation system• Solar irradiation variations for video generation and photography• Model of a train track temperature from meteo data

and GHI & DNI

AtmosphereMonitoring

CAMS Radiation Service new usages

• Bioenergy - PAR data for microalgae growth• Radiation effect on the development and toxicity of

cyanobacterial blooms in reservoirs• Water disinfection by solar radiation (UV)• Synthesis of protective compounds such as flavonoids in plants -

color of iris flowers, as an answer to UV stress• Influence of UV doses and other meteorological data on the

“inula montana” in the Luberon mountain area• Impact of solar radiation on grapes and wine aroma –

modelisation of grape surface temperature dynamics• Study to demonstrate that UV-B exposure, as a surrogate for

vitamin D levels, contributes to prevent from Parkinson disease

AtmosphereMonitoring

Usage statistics

AtmosphereMonitoring New:

first validation reportdealing with hourly and daily irradiation

new structure of conclusions, more user oriented- ability to reproduce

day-to-day variability- bias and standard dev.- ability to reproduce

frequency distributions- ability to reproduce

monthly means

Validating hourly irradiation Validating hourly irradiation

AtmosphereMonitoring

THE UV forecasting service

Overview of CAMS forecast model (C-IFS)

UV processor for clear and cloudy sky conditions

Ozone profiles

Aerosol properties

Albedo

Cloud information

UV products:UV IndexSpectral UV at5nm resolution

Atmospheric state

o ~ 40 km spatial resolution

o every 1 hour

~ 40 km spatial resolution

temporal resolution: 1 hour

UV products:UV indexSpectral UV at 5 nm resolution

AtmosphereMonitoring

Evaluation UV solar products as part of CAMS-7230-day running mean UV Index around the local noon

new UV schemespatial resolution

AtmosphereMonitoring

More validation results

• More detailed discussion on validationL. Wald, A. Arola, Talk on Tuesday, 5 pm

• CAMS Radiation Service• UV forecast evaluation

AtmosphereMonitoring

Conclusions

• User specific solar radiation monitoring products & UV forecasts• Free & open data access for any usage• References

• User‘s Guide at http://atmosphere.copernicus.eu/documentation• Heliosat-4 method: Qu et al., Fast radiative transfer parameterisation for

assessing the surface solar irradiance: The Heliosat-4 method, MetZet, 2017

• McClear method: Lefèvre et al., McClear: a new model estimating downwelling solar radiation at ground level in clear-sky conditions, AMT, 2013

• UV and broadband irradiation evaluation: Quarterly validation reports at http://atmosphere.copernicus.eu/validation