Imperial College London

Professor Helen Brindley

Faculty of Natural SciencesDepartment of Physics

Professor in Earth Observation
 
 
 
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Contact

 

+44 (0)20 7594 7673h.brindley

 
 
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Location

 

717Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

81 results found

Brindley HE, Russell JE, 2008, Assessing the errors in shortwave radiative fluxes inferred from the Geostationary Earth Radiation Budget (GERB) instrument in the presence of dust aerosol, GASTRIC CANCER, Vol: 47, Pages: 1659-1680

The Geostationary Earth Radiation Budget (GERB) instruments flying on the Meteosat Second Generation series of satellites provide a unique tool with which to monitor the diurnal evolution of top-of-atmosphere broadband radiation fields. GERB products, which have recently been released to the scientific community, include aerosol information in addition to the observed radiances and inferred fluxes. However, no account of the anisotropic characteristics of aerosol has been incorporated in the radiance-to-flux conversion, which uses angular distribution models developed for clear or cloudy conditions. Here an attempt is made to quantify the impact of this omission in the shortwave (SW), focusing on dust-contaminated scenes. An observationally based representation of dust is used to develop a theoretical angular distribution model, which is tested through comparison with observed GERB radiances. For dusty scenes that have been processed as clear ocean, applying the dust model to convert GERB radiances to fluxes reduces the SW reflected flux by an average of approximately 12 W m(-2) relative to the original GERB fluxes. This value ranges from -4 to +55 W m(-2), depending on observation geometry and dust loading. For dusty scenes that the GERB processing has treated as cloudy, GERB fluxes are generally smaller than values obtained using the dust-specific model. On average, over the time period studied here, the two effects partially cancel, and the overall mean difference is 2.5 W m(-2). However, it is shown that this cancellation is highly sensitive to the location and time period under consideration.

Journal article

Brindley HE, 2007, Estimating the top-of-atmosphere longwave radiative forcing due to Saharan dust from satellite observations over a west African surface site, Atmospheric Science Letters, Vol: 8, Pages: 74-79

This paper presents a methodology for estimating the longwave top-of-atmosphere direct radiative forcing due to Saharan dust aerosol from satellite observations made by the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) and Geostationary Earth Radiation Budget (GERB) instruments. Narrow-band observations from SEVIRI are used to detect dust presence and quantify its loading, while GERB provides an estimate of the dust impact on the total outgoing longwave radiation. Applying the technique to observations made over the Banizoumbou surface station in Niger through March-June 2006 indicates a midday longwave forcing efficiency of 17 ± 5 W m-2 per unit aerosol optical depth.

Journal article

Brindley HE, Russell JE, 2006, Improving GERB scene identification using SEVIRI: Infrared dust detection strategy, REMOTE SENSING OF ENVIRONMENT, Vol: 104, Pages: 426-446, ISSN: 0034-4257

Journal article

Brindley HE, Ignatov A, 2006, Retrieval of mineral aerosol optical depth and size information from Meteosat Second Generation SEVIRI solar reflectance bands, REMOTE SENSING OF ENVIRONMENT, Vol: 102, Pages: 344-363, ISSN: 0034-4257

Journal article

Harries JE, Russell JE, Hanafin JA, Brindley H, Futyan J, Rufus J, Kellock S, Matthews G, Wrigley R, Last A, Mueller J, Mossavati R, Ashmall J, Sawyer E, Parker D, Caldwell M, Allan PM, Smith A, Bates MJ, Coan B, Stewart BC, Lepine DR, Cornwall LA, Corney DR, Ricketts MJ, Drummond D, Smart D, Cutler R, Dewitte S, Clerbaux N, Gonzalez L, Ipe A, Bertrand C, Joukoff A, Crommelynck D, Nelms N, Llewellyn-Jones DT, Butcher G, Smith GL, Szewczyk ZP, Mlynczak PE, Slingo A, Allan RP, Ringer MAet al., 2005, The geostationary Earth Radiation Budget Project, BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, Vol: 86, Pages: 945-+, ISSN: 0003-0007

Journal article

Kratz DP, Mlynczak MG, Mertens CJ, Brindley H, Gordley LL, Martin-Torres J, Miskolczi FM, Turner DDet al., 2005, An inter-comparison of far-infrared line-by-line radiative transfer models, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, Vol: 90, Pages: 323-341, ISSN: 0022-4073

Journal article

Sandford MCW, Allan PM, Caldwell ME, Delderfield J, Oliver MB, Sawyer E, Harries JE, Ashmall J, Brindley H, Kellock S, Mossavati R, Wrigley R, Llewellyn-Jones D, Blake O, Butcher G, Cole R, Nelms N, DeWitte S, Gloesener P, Fabbrizzi Fet al., 2003, The geostationary Earth radiation budget (GERB) instrument on EUMETSAT's MSG satellite, 51st International Astronautical Congress, Publisher: PERGAMON-ELSEVIER SCIENCE LTD, Pages: 909-915, ISSN: 0094-5765

Conference paper

Brindley HE, Harries JE, 2003, Observations of the infrared outgoing spectrum of the Earth from space: The effects of temporal and spatial sampling, JOURNAL OF CLIMATE, Vol: 16, Pages: 3820-3833, ISSN: 0894-8755

Journal article

Brindley HE, Allan RP, 2003, Simulations of the effects of interannual and decadal variability on the clear-sky outgoing long-wave radiation spectrum, QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 129, Pages: 2971-2988, ISSN: 0035-9009

Journal article

Brindley HE, Harries JE, 2003, The impact of instrument field of view on measurements of cloudy-sky spectral radiances from space: application to IRIS and IMG, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, Vol: 78, Pages: 341-352, ISSN: 0022-4073

Journal article

Harries JE, Brindley HE, Sagoo PJ, Bantges RJet al., 2001, Increase in greenhouse forcing inferred from the outgoing longwave radiation spectra of the Earth in 1970 and 1997 (vol 410, pg 355, 2001), NATURE, Vol: 410, Pages: 1124-1124, ISSN: 0028-0836

Journal article

Harries JE, Brindley HE, Sagoo PJ, Bantges RJet al., 2001, Increases in greenhouse forcing inferred from the outgoing longwave radiation spectra of the Earth in 1970 and 1997, NATURE, Vol: 410, Pages: 355-357, ISSN: 0028-0836

Journal article

Harries JE, Naud C, Brindley HE, 2001, The Geostationary Earth Radiation Budget (GERB) Experiment: Science Applications, International Radiation Symposium, Publisher: A. Deepak, Pages: 520-523

Conference paper

Brindley HE, Sagoo PJ, Harries JE, 2001, A comparison of thermal emission spectra for climate change studies, International Radiation Symposium, Publisher: A DEEPAK PUBLISHING, Pages: 1235-1238

Conference paper

Brindley HE, Harries JE, Slingo AS, 2001, On the utilisation of operational satellite data to investigate climate variability and trends., International Radiation Symposium, Publisher: A DEEPAK PUBLISHING, Pages: 635-638

Conference paper

Brindley HE, Geer AJ, Harries JE, 1999, Climate variability and trends in SSU radiances: A comparison of model predictions and satellite observations in the middle stratosphere, JOURNAL OF CLIMATE, Vol: 12, Pages: 3197-3219, ISSN: 0894-8755

Journal article

Geer AJ, Harries JE, Brindley HE, 1999, Spatial patterns of climate variability in upper-tropospheric water vapor radiances from satellite data and climate model simulations, JOURNAL OF CLIMATE, Vol: 12, Pages: 1940-1955, ISSN: 0894-8755

Journal article

Harries JE, Brindley HE, Geer AJ, 1998, Climate variability and trends from operational satellite spectral data, GEOPHYSICAL RESEARCH LETTERS, Vol: 25, Pages: 3975-3978, ISSN: 0094-8276

Journal article

Brindley HE, Harries JE, 1998, The impact of far ir absorption on clear sky greenhouse forcing: Sensitivity studies at high spectral resolution, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, Vol: 60, Pages: 151-180, ISSN: 0022-4073

Journal article

Brindley HE, Harries JE, 1997, The impact of far infra-red absorption on greenhouse forcing: sensitivity studies at high spectral resolution, International Radiation Symposium, Publisher: A. Deepak

Conference paper

Brindley HE, Estimating the top-of-atmosphere longwave radiative forcing due to Saharan dust from satellite observations over a west African surface site, ATMOSPHERIC SCIENCE LETTERS, Vol: 8, Pages: 74-79, ISSN: 1530-261X

Journal article

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