Publications
28 results found
Murray JE, Brindley HE, Bryant RG, et al., 2016, Enhancing weak transient signals in SEVIRI false color imagery: Application to dust source detection in southern Africa, Journal of Geophysical Research: Atmospheres, Vol: 121, Pages: 10199-10219, ISSN: 2169-897X
A method is described to significantly enhance the signature of dust events using observations from the Spinning Enhanced Visible and InfraRed Imager (SEVIRI). The approach involves the derivation of a composite clear-sky signal for selected channels on an individual time-step and pixel basis. These composite signals are subtracted from each observation in the relevant channels to enhance weak transient signals associated with either (a) low levels of dust emission, or (b) dust emissions with high salt or low quartz content. Different channel combinations, of the differenced data from the steps above, are then rendered in false color imagery for the purpose of improved identification of dust source locations and activity. We have applied this clear-sky difference (CSD) algorithm over three [globally significant] source regions in southern Africa: the Makgadikgadi Basin, Etosha Pan, and the Namibian and western South African coast. Case study analyses indicate three notable advantages associated with the CSD approach over established image rendering methods: (i) an improved ability to detect dust plumes, (ii) the observation of source activation earlier in the diurnal cycle, and (iii) an improved ability to resolve and pinpoint dust plume source locations.
Brindley HE, Russell JE, 2009, An assessment of Saharan dust loading and the corresponding cloud-free longwave direct radiative effect from geostationary satellite observations, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, Vol: 114, ISSN: 2169-897X
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- Citations: 55
Clerbaux N, Russell JE, Dewitte S, et al., 2009, Comparison of GERB instantaneous radiance and flux products with CERES Edition-2 data, REMOTE SENSING OF ENVIRONMENT, Vol: 113, Pages: 102-114, ISSN: 0034-4257
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- Citations: 24
Brindley HE, Russell JE, 2009, The Direct Cloud-free Longwave Radiative Effect of Saharan Dust as observed by the Geostationary Earth Radiation Budget (GERB) Experiment, International Radiation Symposium (IRC/IAMAS), Publisher: AMER INST PHYSICS, Pages: 521-524, ISSN: 0094-243X
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- Citations: 1
Bantges RJ, Russell JE, Harries JE, et al., 2009, A Geostationary Earth Radiation Budget Dataset For Climate Research: First Intercomparison Results Between Data From the GERB-1 &-2 Instruments, International Radiation Symposium (IRC/IAMAS), Publisher: AMER INST PHYSICS, Pages: 513-516, ISSN: 0094-243X
Clerbaux N, Dewitte S, Bertrand C, et al., 2008, Unfiltering of the Geostationary Earth Radiation Budget (GERB) data. Part II: Longwave radiation, JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY, Vol: 25, Pages: 1106-1117, ISSN: 0739-0572
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- Citations: 15
Clerbaux N, Dewitte S, Bertrand C, et al., 2008, Unfiltering of the Geostationary Earth Radiation Budget (GERB) data. Part I: Shortwave radiation, Journal of Atmospheric and Oceanic Technology, Vol: 25, Pages: 1087-1105
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.
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, JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY, Vol: 47, Pages: 1659-1680, ISSN: 1558-8424
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- Citations: 4
Slingo A, Ackerman TP, Allan RP, et al., 2006, Observations of the impact of a major Saharan dust storm on the atmospheric radiation balance, GEOPHYSICAL RESEARCH LETTERS, Vol: 33, ISSN: 0094-8276
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- Citations: 210
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
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- Citations: 29
Russell JE, Harries JE, Clearbaux N, 2006, Geostationary Earth Radiation Budget (GERB): Validation results, 3rd MSG RAO Workshop, Publisher: ESA PUBLICATIONS DIVISION C/O ESTEC, Pages: 5-+, ISSN: 0379-6566
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- Citations: 5
Futyan JM, Russell JE, 2005, Developing clear-sky flux products for the geostationary earth radiation budget experiment, JOURNAL OF APPLIED METEOROLOGY, Vol: 44, Pages: 1361-1374, ISSN: 0894-8763
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- Citations: 4
Harries JE, Russell JE, Hanafin JA, et al., 2005, The geostationary Earth Radiation Budget Project, BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, Vol: 86, Pages: 945-+, ISSN: 0003-0007
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- Citations: 191
Futyan JM, Russell JE, Harries JE, 2005, Determining cloud forcing by cloud type from geostationary satellite data, GEOPHYSICAL RESEARCH LETTERS, Vol: 32, ISSN: 0094-8276
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- Citations: 25
Futyan JM, Russell JE, Harries JE, 2004, Cloud radiative forcing in Pacific, African, and Atlantic tropical convective regions, JOURNAL OF CLIMATE, Vol: 17, Pages: 3192-3202, ISSN: 0894-8755
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- Citations: 10
Naud C, Russell JE, Harries JE, 2001, Remote sensing of cirrus cloud properties in the far infrared, Conference on Remote Sensing of Clouds and the Atmosphere V, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, Pages: 30-38, ISSN: 0277-786X
Russell JE, Haigh JD, 2001, Detecting thin cirrus clouds in high spectral resolution infrared data, Conference on Remote Sensing of Clouds and the Atmosphere V, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, Pages: 56-66, ISSN: 0277-786X
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- Citations: 1
Naud C, Russell JE, Harries JE, 2001, Radiative effect of cirrus clouds in the far infrared, International Radiation Symposium, Publisher: A DEEPAK PUBLISHING, Pages: 329-332
Bantges RJ, Russell JE, Haigh JD, 1999, Cirrus cloud top-of-atmosphere radiance spectra in the thermal infrared, Conference on Light Scattering by Nonspherical Particles - Theory, Measurements, and Applications, Publisher: PERGAMON-ELSEVIER SCIENCE LTD, Pages: 487-498, ISSN: 0022-4073
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- Citations: 16
Russell JE, Haigh JD, 1999, Effect of cloud vertical inhomogeneity on the retrieval of cirrus cloud temperature and infrared optical depth using the ASTR, JOURNAL OF THE ATMOSPHERIC SCIENCES, Vol: 56, Pages: 2601-2612, ISSN: 0022-4928
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- Citations: 2
Bantges RJ, Russell JE, Haigh JD, 1999, Cirrus cloud top-of-atmosphere radiance spectra in the thermal infrared, Journal of Quantitative Spectroscopy & Radiative Transfer, Vol: 63, Pages: 487-498
Naud C, Russell JE, Harries JE, 1998, High Spectral resolution simulation of the impact on heating rates of cirrus clouds in the Far Infrared, Satellite Remote Sensing of Clouds and the Atmosphere Iii, Vol: 3495, Pages: 92-99, ISSN: 0277-786X
Russell JE, Bantges RJ, Naud C, et al., 1998, The effect of cirrus cloud in the infrared (4-100 microns) - high spectral resolution simulations, Conference on Satellite Remote Sensing of Clouds and the Atmosphere III, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, Pages: 100-108, ISSN: 0277-786X
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- Citations: 2
Naud C, Russell JE, Harries JE, 1998, High Spectral resolution simulation of the impact on heating rates of cirrus clouds in the Far Infrared, Satellite Remote Sensing of Clouds and the Atmosphere Iii, Vol: 3495, Pages: 92-99, ISSN: 0277-786X
Russell JE, Bantges RJ, Haigh JD, et al., 1998, Retrieval of cirrus properties from high spectral resolution IR measurements, Conference on Satellite Remote Sensing of Clouds and the Atmosphere II, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, Pages: 60-71, ISSN: 0277-786X
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- Citations: 1
Russell JE, Haigh JD, 1996, Retrieval of cirrus cloud temperature and infrared optical depth using the Along Track Scanning Radiometer, Satellite Remote Sensing and Modeling of Clouds and the Atmosphere, Vol: 2961, Pages: 2-11
Russell JE, Haigh JD, 1996, Retrieval of cirrus cloud temperature and infrared optical depth using the Along Track Scanning Radiometer, Satellite Remote Sensing and Modeling of Clouds and the Atmosphere, Vol: 2961, Pages: 2-11
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