 | Vázquez-Navarro M. Life cycle of contrails from a time series of geostationary satellite images / Deutsches Zentrum für Luft- und Raumfahrt Institut für Physik der Atmosphäre, Oberpfaffenhofen. - Köln: DLR, Bibliotheks- und Informationswesen, 2010. - IV, 140 S.: Ill., graph. - (Forschungsbericht; 10-19). - Bibliogr.: p.: 131-135. - ISSN 1434-8454
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1 Preface ...................................................... 1
2 Introduction ................................................. 7
2.1 Fundamentals of Atmospheric Radiation ................... 7
2.2 Remote Sensing ......................................... 14
2.2.1 MSG - Meteosat Second Generation ................ 14
2.2.2 Terra ........................................... 21
3 Methods ..................................................... 27
3.1 Automatic Contrail Tracking Algorithm: ACTA ............ 27
3.1.1 ACTA: input. Contrail Detection Algorithm ....... 28
3.1.2 ACTA: description ............................... 29
3.1.3 Discussion ...................................... 48
3.2 Outgoing longwave radiation ............................ 51
З.З Reflected shorwave radiation ........................... 54
3.4 Validation ............................................. 56
3.4.1 Mapping - Modified Nearest Neighhour Method ..... 5G
3.4.2 Validation of the MSG/SEVIRI irradiance
algorithms ...................................... 62
3.4.3 Discussion ...................................... 70
3.5 Radiative forcing ...................................... 71
3.6 Optical thickness ...................................... 72
4 Life cycle of contrails: results ............................ 75
4.1 Case Studies ........................................... 75
4.1.1 Case 1 .......................................... 70
4.1.2 Case 2 .......................................... 78
4.1.3 Case 3 .......................................... 79
4.1.4 Conclusions ..................................... 81
4.2 Systematic Studies ..................................... 83
4.2.1 Geographical distribution ....................... 83
4.2.2 Lifespan ........................................ 86
4.2.3 Optical thickness ............................... 87
4.2.4 Radiative Forcing ............................... 88
5 Conclusions and outlook ..................................... 93
A Contrail tracking. Example .................................. 99
B Validacion of irradiances: CERES/Terra vs. SEVIRI/MSG ...... 109
С Analysis of discrepancies .................................. 115
D Validation of irradiances: GERB/MSG vs. SEVIRI/MSG ......... 123
Acronyms and abbreviations .................................... 129
Bibliography .................................................. 131
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