Differential absorption methodology for imaging spectroscopy of atmospheric water vapor:
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Zürich
Remote Sensing Laboratories, Department of Geography, University
1998
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| Schriftenreihe: | Remote sensing series
32 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XVI, 131 S. Ill., graph. Darst. |
Internformat
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| 100 | 1 | |a Schlaepfer, Daniel |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Differential absorption methodology for imaging spectroscopy of atmospheric water vapor |c Daniel Schläpfer |
| 264 | 1 | |a Zürich |b Remote Sensing Laboratories, Department of Geography, University |c 1998 | |
| 300 | |a XVI, 131 S. |b Ill., graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
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| 490 | 1 | |a Remote sensing series |v 32 | |
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Datensatz im Suchindex
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| adam_text | Titel: Differential absorption methodology for imaging spectroscopy of atmospheric water vapor
Autor: Schläpfer, Daniel
Jahr: 1998
Contents
Contents
Summary................................................................................................................................................. i
Zusammenfassung (German)...................................................................................................... in
Contents..................................................................................................................................................v
List of Figures......................................................................................................................................ix
List of Tables.......................................................................................................................................xii
Glossary...............................................................................................................................................xm
Chapter 1:
Introduction
1.1 Problem Description......................................................................................................1
1.2 Remote Sensing of Atmospheric Water Vapor......................................................1
1.3 Differential Absorption Techniques in Imaging Spectroscopy..........................3
1.4 Organization of this Thesis..........................................................................................3
Chapter 2:
Signatures of the Atmosphere
2.1 Radiant Path through the Atmosphere.....................................................................5
2.1.1 Path from the Sun to the Earth s Surface........................................................6
2.1.2 Irradiance on a Real Surface.............................................................................7
2.1.3 Ground Reflection..............................................................................................8
2.1.4 Path from the Ground to the Sensor..............................................................10
2.1.5 Optical Thickness.............................................................................................11
2.1.6 Atmospheric Refraction..................................................................................11
2.2 Radiative Transfer Codes...........................................................................................12
2.2.1 The MODO Interface......................................................................................14
2.3 Signatures of Aerosols................................................................................................14
2.4 Atmospheric Signature of Water Vapor.................................................................16
2.5 Signatures of Various Atmospheric Gases............................................................19
2.6 Conclusions on Atmospheric Signatures..............................................................20
Chapter 3:
Measurement of Atmospheric Properties
3.1 Sun Photometry............................................................................................................21
3.1.1 The Reagan Sun Photometer..........................................................................22
3.1.2 Sun Photometer Calibration...........................................................................22
3.1.3 Airmass Calculation.........................................................................................23
3.1.4 Modified Langley Plot.....................................................................................24
3.1.5 Calibration Results...........................................................................................26
3.2 Applications of Sun Photometer Data....................................................................29
3.2.1 Water Vapor Measurement.............................................................................29
V
Contents
3.2.2 Aerosol Measurement.....................................................................................31
3.3 Radiosonde Measurements of Water Vapor.........................................................33
3.3.1 Integration of Precipitatile Water from Radiosonde Data.............................34
3.4 Applicability of Atmospheric Measurements in Remote Sensing..................36
Chapter 4:
Imaging Spectroscopy Data Preparation
4.1 Imaging Spectroscopy of the Atmosphere............................................................37
4.1.1 Spectral Resolution..........................................................................................38
4.1.2 Spectral Range.................................................................................................38
4.1.3 Possible Applications.......................................................................................38
4.2 Relevant Imaging Spectrometers.............................................................................39
4.3 Calibration of Imaging Spectrometers....................................................................41
4.3.1 Basics of Radiometrie Calibration...................................................................41
4.3.2 The AVIRIS Calibration....................................................................................42
4.3.3 The DAIS Calibration.......................................................................................43
4.3.4 Data Quality Assessment................................................................................43
4.4 Parametric Geocoding of Airborne Scanner Data...............................................46
4.4.1 Parametric Geocoding as Part of the Preprocessing Chain..........................46
4.4.2 Input Data.........................................................................................................48
4.4.3 Geometric Algorithm.......................................................................................48
4.4.4 Implementation of the Algorithm...................................................................51
4.4.5 The PARGE Application...................................................................................54
4.4.6 Results...............................................................................................................54
4.4.7 Geocoding Quality Assessment......................................................................56
4.4.8 Conclusions on Parametric Geocoding..........................................................57
4.5 Algorithms for Atmospheric Correction.................................................................58
4.5.1 Empirical Methods...........................................................................................58
4.5.2 Radiative Transfer Code Based Methods.......................................................60
4.5.3 Adjacency Correction.......................................................................................61
Chapter 5:
Differential Absorption Techniques
5.1 Methodology of Channel Selection.........................................................................63
5.1.1 Selection of the Reference Channels..............................................................64
5.1.2 Selection of the Measurement Channels.......................................................65
5.1.3 Channel Selection Resultsfor AVIRIS Data...................................................68
5.2 Compilation of Differential Absorption Techniques............................................70
5.2.1 Band Quotient (BQ)............................................... 70
5.2.2 Narrow/Wide Method (N/W)...........................................................................71
5.2.3 Continuum Interpolated Band Ratio (CIBR)...................................................72
5.2.4 Linear Regression Ratio (URR).......................................................................72
5.2.5 Non Linear Differential Absorption Techniques........ .73
5.3 The APDA Technique............................................. 73
5.3.1 Derivation of the Atmospheric Precorrection Technique...........................73
5.3.2 The APDA Ratio................................................. 74
5.3.3 The Precorrection Term....................................... 76
5.4 Error Analyses...................................... .....................................................77
5.4.1 The Effect of Precorrection for Variable Background Albedos!. ™ !!!!!!!!!!!. 77
5.4.2 Tests on Simulated Data.................................... 78
VI
Contents
5.4.3 Error Propagation Due to Image Noise..........................................................80
5.4.4 Uncertainties Due to Aerosol Variations.......................................................81
5.4.5 Variations Due to the Channel Combination.................................................82
5.5 Relation of Transmittance and Water Vapor Amount........................................85
5.6 Further Expansion of the APDA Technique...........................................................87
5.7 Conclusions on Differential Absorption Techniques..........................................88
Chapter 6:
Application to Imaging Spectroscopy Data
6.1 Implementation.............................................................................................................89
6.1.1 The APDA Algorithm.......................................................................................89
6.1.2 Definition of the Look Up Table for the APDA Technique............................91
6.1.3 Atmospheric Precorrection of the Image.......................................................93
6.1.4 Optimization of the Atmospheric Path Radiance Term................................93
6.1.5 Correction of the Slew Rate Effect.................................................................94
6.2 Application to AVIRIS Data........................................................................................95
6.2.1 Scene over Central Switzerland.....................................................................95
6.2.2 Scene over Camarillo (CA)..............................................................................98
6.3 Application to DAIS Data..........................................................................................100
6.4 Image Based Profiling Procedures.........................................................................103
6.4.1 Columnar Water Vapor Profile Retrieval.....................................................103
6.4.2 Concentration Profile Retrieval.....................................................................104
6.4.3 Comparison of North and South Slope Profiles.........................................105
6.5 Reduction of the Terrain Influence........................................................................106
6.5.1 Influence of Geocoding on Terrain Adjustment..........................................107
6.5.2 Result for AVIRIS 1995 Data..........................................................................108
Chapter 7:
Conclusions
7.1 Radiometry of the Atmosphere..............................................................................ill
7.2 Preprocessing Results...............................................................................................112
7.3 The APDA Technique.................................................................................................112
7.4 Future Development..................................................................................................113
7.5 Potential Applications of the Water Vapor Results...........................................113
Appendix A: Special Definitions................................................................................115
Appendix B: Acronyms......................................................................................................117
Appendix C: Hard- and Software...............................................................................119
Appendix D: Description of the Developed Software.............................120
The Modo MODTRAN Utility.......................................................................................... 120
The PARGE Application.................................................................................................... 121
The Sun Photometry Tools............................................................................................. 122
The Gas Retrieval Application........................................................................................ 123
Various.................................................................................................................................. 124
References.......................................................................................................................................... 125
Acknowledgements....................................................................................................................... 131
VII
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| spelling | Schlaepfer, Daniel Verfasser aut Differential absorption methodology for imaging spectroscopy of atmospheric water vapor Daniel Schläpfer Zürich Remote Sensing Laboratories, Department of Geography, University 1998 XVI, 131 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Remote sensing series 32 Zugl.: Zürich, Univ., Diss. Absorptionsspektroskopie (DE-588)4141129-8 gnd rswk-swf Wasserdampf (DE-588)4132825-5 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Absorptionsspektroskopie (DE-588)4141129-8 s Wasserdampf (DE-588)4132825-5 s DE-604 Remote sensing series 32 (DE-604)BV035361323 32 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=008740334&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Schlaepfer, Daniel Differential absorption methodology for imaging spectroscopy of atmospheric water vapor Remote sensing series Absorptionsspektroskopie (DE-588)4141129-8 gnd Wasserdampf (DE-588)4132825-5 gnd |
| subject_GND | (DE-588)4141129-8 (DE-588)4132825-5 (DE-588)4113937-9 |
| title | Differential absorption methodology for imaging spectroscopy of atmospheric water vapor |
| title_auth | Differential absorption methodology for imaging spectroscopy of atmospheric water vapor |
| title_exact_search | Differential absorption methodology for imaging spectroscopy of atmospheric water vapor |
| title_full | Differential absorption methodology for imaging spectroscopy of atmospheric water vapor Daniel Schläpfer |
| title_fullStr | Differential absorption methodology for imaging spectroscopy of atmospheric water vapor Daniel Schläpfer |
| title_full_unstemmed | Differential absorption methodology for imaging spectroscopy of atmospheric water vapor Daniel Schläpfer |
| title_short | Differential absorption methodology for imaging spectroscopy of atmospheric water vapor |
| title_sort | differential absorption methodology for imaging spectroscopy of atmospheric water vapor |
| topic | Absorptionsspektroskopie (DE-588)4141129-8 gnd Wasserdampf (DE-588)4132825-5 gnd |
| topic_facet | Absorptionsspektroskopie Wasserdampf Hochschulschrift |
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