Operational surface UV radiation product from GOME-2 and AVHRR/3 data

Kujanpää, Jukka; Kalakoski, Niilo

doi:10.5194/amt-8-4399-2015

Cited by 26 publications

(28 citation statements)

References 56 publications

(58 reference statements)

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“…By combining ozone data from GOME-2 and cloud data from AVHRR/3 satellite sensors, an improved algorithm was developed to estimate different biological weightings of surface UV radiation, as well as UV-B and UVA, at 0.5° spatial resolution. 211 New global erythemal dose datasets were constructed from OMI measurements and are provided at 0.25° spatial resolution (about 25 km at the equator). 151 Both datasets can be useful for large-scale ecological studies, presuming that possible mismatches between the provided biological weightings and the weighting of interest, as well as the target geometries (e.g., human body or tree shapes), are properly taken into account.…”

Section: Satellite Validationmentioning

confidence: 99%

Ozone—climate interactions and effects on solar ultraviolet radiation

Bais

Bernhard

McKenzie

et al. 2019

Photochem Photobiol Sci

135

149

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Section: Satellite Validationmentioning

confidence: 99%

Ozone—climate interactions and effects on solar ultraviolet radiation

Bais

Bernhard

McKenzie

et al. 2019

Photochem Photobiol Sci

135

149

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“…Surface UV irradiance is estimated via a radiative transfer model using total ozone column, derived from GOME-2 measurements via another dedicated algorithm; surface albedo from the same climatology as the OMI algorithm; an extraterrestrial solar spectrum; and climatological profiles of ozone, temperature, aerosols and clouds (Kujanpää and Kalakoski, 2015). Aerosol properties come from the Global Aerosol Data Set (GADS) (Köpke et al, 1997) and aerosol optical thickness comes from the climatology of Kinne (2007).…”

Section: Data Processingmentioning

confidence: 99%

Validation of satellite-based noontime UVI with NDACC ground-based instruments: influence of topography, environment and satellite overpass time

et al. 2016

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Abstract. Spectral solar UV radiation measurements are performed in France using three spectroradiometers located at very different sites. One is installed in Villeneuve d'Ascq, in the north of France (VDA). It is an urban site in a topographically flat region. Another instrument is installed in Observatoire de Haute-Provence, located in the southern French Alps (OHP). It is a rural mountainous site. The third instrument is installed in Saint-Denis, Réunion Island (SDR). It is a coastal urban site on a small mountainous island in the southern tropics. The three instruments are affiliated with the Network for the Detection of Atmospheric Composition Change (NDACC) and carry out routine measurements to monitor the spectral solar UV radiation and enable derivation of UV index (UVI). The ground-based UVI values observed at solar noon are compared to similar quantities derived from the Ozone Monitoring Instrument (OMI, onboard the Aura satellite) and the second Global Ozone Monitoring Experiment (GOME-2, onboard the Metop-A satellite) measurements for validation of these satellite-based products. The present study concerns the period 2009-September 2012, date of the implementation of a new OMI processing tool. The new version (v1.3) introduces a correction for absorbing aerosols that were not considered in the old version (v1.2).Both versions of the OMI UVI products were available before September 2012 and are used to assess the improvement of the new processing tool. On average, estimates from satellite instruments always overestimate surface UVI at solar noon. Under cloudless conditions, the satellite-derived estimates of UVI compare satisfactorily with ground-based data: the median relative bias is less than 8 % at VDA and 4 % at SDR for both OMI v1.3 and GOME-2, and about 6 % for OMI v1.3 and 2 % for GOME-2 at OHP. The correlation between satellite-based and ground-based data is better at VDA and OHP (about 0.99) than at SDR (0.96) for both space-borne instruments. For all sky conditions, the median relative biases are much larger, with large dispersion for both instruments at all sites (VDA: about 12 %; OHP: 9 %; SDR: 11 %). Correlation between satellite-based and ground-based data is still better at VDA and OHP (about 0.95) than at SDR (about 0.73) for both satellite instruments. These results are explained considering the time of overpass of the two satellites, which is far from solar noon, preventing a good estimation of the cloud cover necessary for a good modelling of the UVI. Site topography and environment are shown to have a non-significant influence. At VDA and OHP, OMI Published by Copernicus Publications on behalf of the European Geosciences Union.

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“…Estimates of surface UV radiation can be derived globally using satellite observations of O 3 , aerosols and cloudiness. The GOME‐2 and OMI surface UV radiation products include, for example, spectral irradiance at selected wavelengths and erythemally weighted daily maximum dose rate (Tanskanen et al, ; Kujanpää & Kalakoski, ). Recent validation of satellite UV radiance at high northern latitudes by Bernhard et al () shows relatively good agreement (within 20%) with satellite and ground‐based observations, except when albedo values used in satellite estimates are uncertain.…”

Section: Observing Chemistry and Composition Of The Abz Atmospherementioning

confidence: 99%

Space‐Based Observations for Understanding Changes in the Arctic‐Boreal Zone

Duncan

Ott

Abshire

et al. 2020

Reviews of Geophysics

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Observations taken over the last few decades indicate that dramatic changes are occurring in the Arctic‐Boreal Zone (ABZ), which are having significant impacts on ABZ inhabitants, infrastructure, flora and fauna, and economies. While suitable for detecting overall change, the current capability is inadequate for systematic monitoring and for improving process‐based and large‐scale understanding of the integrated components of the ABZ, which includes the cryosphere, biosphere, hydrosphere, and atmosphere. Such knowledge will lead to improvements in Earth system models, enabling more accurate prediction of future changes and development of informed adaptation and mitigation strategies. In this article, we review the strengths and limitations of current space‐based observational capabilities for several important ABZ components and make recommendations for improving upon these current capabilities. We recommend an interdisciplinary and stepwise approach to develop a comprehensive ABZ Observing Network (ABZ‐ON), beginning with an initial focus on observing networks designed to gain process‐based understanding for individual ABZ components and systems that can then serve as the building blocks for a comprehensive ABZ‐ON.

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Operational surface UV radiation product from GOME-2 and AVHRR/3 data

Abstract: Abstract. The surface ultraviolet (UV) radiation product, version 1

Cited by 26 publications

References 56 publications

Ozone—climate interactions and effects on solar ultraviolet radiation

Ozone—climate interactions and effects on solar ultraviolet radiation

Validation of satellite-based noontime UVI with NDACC ground-based instruments: influence of topography, environment and satellite overpass time

Space‐Based Observations for Understanding Changes in the Arctic‐Boreal Zone

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