Details
| Original language | English |
|---|---|
| Title of host publication | Environmental Effects on Light Propagation and Adaptive Systems VI |
| Editors | Karin Stein, Szymon Gladysz |
| Publisher | SPIE |
| ISBN (electronic) | 9781510666917 |
| Publication status | Published - 2023 |
| Event | Environmental Effects on Light Propagation and Adaptive Systems VI 2023 - Amsterdam, Netherlands Duration: 5 Sept 2023 → 6 Sept 2023 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 12731 |
| ISSN (Print) | 0277-786X |
| ISSN (electronic) | 1996-756X |
Abstract
Optical or microwave measurements from numerous geodetic devices are affected by their path through the atmosphere. Deterministic changes in the atmospheric refractivity index can be modelled and, to some extent, corrected. On the other hand, random fluctuations coming from atmospheric turbulence correlates the observations thus reducing the effective number of available observations. They have to be accounted for to get a realistic description of the measurement error but also to increase the reliability of early warning system within the context of risk management with light detection and ranging (lidar) sensors. We have developed a novel method to investigate the impact of turbulence on long-range laser scanner observations by searching prisms within repetitive scans at different times of the day, during consecutive days in a mountainous region in Austria. The empirical analysis of the power spectral density of the measurements combined with information from meteorological sensors (pressure, temperature, wind velocity) help gaining a better understanding of how and when turbulence affects the range measurements. Our method gives an averaged description of turbulence across the atmospheric layers travelled by the laser light, and paves the way for the development of an improved stochastic model for such observations without using additional equipment such as scintillometers.
Keywords
- Alpine terrain, atmospheric turbulence, Error Budget, Multi-temporal 3D Point Cloud Analysis, Permanent Laser Scanning, scale length of turbulence, Turbulence theory
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
Environmental Effects on Light Propagation and Adaptive Systems VI. ed. / Karin Stein; Szymon Gladysz. SPIE, 2023. 127310H (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12731).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Does atmospheric turbulence affect long-range terrestrial laser scanner observations?
T2 - Environmental Effects on Light Propagation and Adaptive Systems VI 2023
AU - Kermarrec, Gaël
AU - Czerwonka-Schröder, Daniel
AU - Holst, Christoph
PY - 2023
Y1 - 2023
N2 - Optical or microwave measurements from numerous geodetic devices are affected by their path through the atmosphere. Deterministic changes in the atmospheric refractivity index can be modelled and, to some extent, corrected. On the other hand, random fluctuations coming from atmospheric turbulence correlates the observations thus reducing the effective number of available observations. They have to be accounted for to get a realistic description of the measurement error but also to increase the reliability of early warning system within the context of risk management with light detection and ranging (lidar) sensors. We have developed a novel method to investigate the impact of turbulence on long-range laser scanner observations by searching prisms within repetitive scans at different times of the day, during consecutive days in a mountainous region in Austria. The empirical analysis of the power spectral density of the measurements combined with information from meteorological sensors (pressure, temperature, wind velocity) help gaining a better understanding of how and when turbulence affects the range measurements. Our method gives an averaged description of turbulence across the atmospheric layers travelled by the laser light, and paves the way for the development of an improved stochastic model for such observations without using additional equipment such as scintillometers.
AB - Optical or microwave measurements from numerous geodetic devices are affected by their path through the atmosphere. Deterministic changes in the atmospheric refractivity index can be modelled and, to some extent, corrected. On the other hand, random fluctuations coming from atmospheric turbulence correlates the observations thus reducing the effective number of available observations. They have to be accounted for to get a realistic description of the measurement error but also to increase the reliability of early warning system within the context of risk management with light detection and ranging (lidar) sensors. We have developed a novel method to investigate the impact of turbulence on long-range laser scanner observations by searching prisms within repetitive scans at different times of the day, during consecutive days in a mountainous region in Austria. The empirical analysis of the power spectral density of the measurements combined with information from meteorological sensors (pressure, temperature, wind velocity) help gaining a better understanding of how and when turbulence affects the range measurements. Our method gives an averaged description of turbulence across the atmospheric layers travelled by the laser light, and paves the way for the development of an improved stochastic model for such observations without using additional equipment such as scintillometers.
KW - Alpine terrain
KW - atmospheric turbulence
KW - Error Budget
KW - Multi-temporal 3D Point Cloud Analysis
KW - Permanent Laser Scanning
KW - scale length of turbulence
KW - Turbulence theory
UR - http://www.scopus.com/inward/record.url?scp=85179556375&partnerID=8YFLogxK
U2 - 10.1117/12.2675958
DO - 10.1117/12.2675958
M3 - Conference contribution
AN - SCOPUS:85179556375
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Environmental Effects on Light Propagation and Adaptive Systems VI
A2 - Stein, Karin
A2 - Gladysz, Szymon
PB - SPIE
Y2 - 5 September 2023 through 6 September 2023
ER -