Zobrazeno 1 - 10
of 1 087
pro vyhledávání: '"Laser altimetry"'
Publikováno v:
Earth, Planets and Space, Vol 76, Iss 1, Pp 1-16 (2024)
Abstract The Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) has great potential for development due to its advantages of the use of multiple beams, low energy consumption, high repetition frequency, and high measurement sensitivity. However, t
Externí odkaz:
https://doaj.org/article/2a854f765f8c451fa9b03ea51a54eb30
Autor:
Bruno Silva, Luiz Guerreiro Lopes
Publikováno v:
Software, Vol 3, Iss 3, Pp 380-410 (2024)
This paper presents a web-based software tool designed to process, analyze, and visualize satellite laser altimetry data, specifically from the Ice, Cloud, and land Elevation Satellite (ICESat) mission, which collected data from 2003 to 2009, and ICE
Externí odkaz:
https://doaj.org/article/c350b1ea176e46168ab43d6b70058277
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 129, Iss , Pp 103861- (2024)
Forest structure, notably the canopy height above the ground, can be obtained from the full-waveform data acquired by satellite laser altimetry. On sloped terrain, the laser pulse can simultaneously reflect from both the vegetation and the ground wit
Externí odkaz:
https://doaj.org/article/ec065386320d4ce2b8f01545a142f1a3
Autor:
Haobin Xia, Jianjun Wu, Jiaqi Yao, Nan Xu, Xiaoming Gao, Yubin Liang, Jianhua Yang, Jianhang Zhang, Liang Gao, Weiqi Jin, Bowen Ni
Publikováno v:
Land, Vol 13, Iss 8, p 1120 (2024)
Building height is a crucial indicator when studying urban environments and human activities, necessitating accurate, large-scale, and fine-resolution calculations. However, mainstream machine learning-based methods for inferring building heights fac
Externí odkaz:
https://doaj.org/article/25b39e2d82444231837c2e6b6c7653a6
Autor:
William Colgan, Jakob Jakobsen, Anne Solgaard, Anja Løkkegaard, Jakob Abermann, Shfaqat A. Khan, Beata Csatho, Joseph A. MacGregor, Robert S. Fausto, Nanna Karlsson, Allan Ø. Pedersen, Signe B. Andersen, John Sonntag, Christine S. Hvidberg, Andreas P. Ahlstrøm
Publikováno v:
Journal of Glaciology, Vol 69, Pp 919-929 (2023)
The magnitude and azimuth of horizontal ice flow at Camp Century, Greenland have been measured several times since 1963. Here, we provide a further two independent measurements over the 2017–21 period. Our consensus estimate of horizontal ice flow
Externí odkaz:
https://doaj.org/article/fba10fb392ab4f8d85998966e3e74ca9
Autor:
Andreas Richter, Ludwig Schröder, Mirko Scheinert, Sergey V. Popov, Andreas Groh, Matthias Willen, Martin Horwath, Reinhard Dietrich
Publikováno v:
Journal of Glaciology, Vol 68, Pp 849-866 (2022)
Lake Vostok, East Antarctica, represents an extensive water surface at the base of the ice sheet. Snow, ice and atmospheric pressure loads applied anywhere within the lake area produce a hydrostatic response, involving deformations of the ice surface
Externí odkaz:
https://doaj.org/article/75ee611a875f48ae811a11ebf362bc48
Publikováno v:
Geoscience Letters, Vol 9, Iss 1, Pp 1-13 (2022)
Abstract Monitoring lake water levels is important to fully understand the characteristics and mechanism of lake dynamic change, the impact of climate change and human activities on lakes, etc. This paper first individually evaluated the performance
Externí odkaz:
https://doaj.org/article/d41c78385ebd43bf857d23727f2fed47
Autor:
Alexander R. Cobb, René Dommain, Rahayu S. Sukri, Faizah Metali, Bodo Bookhagen, Charles F. Harvey, Hao Tang
Publikováno v:
Science of Remote Sensing, Vol 7, Iss , Pp 100074- (2023)
Tropical peatlands are estimated to hold carbon stocks of 70 Pg C or more as partly decomposed organic matter, or peat. Peat may accumulate over thousands of years into gently mounded deposits called peat domes with a relief of several meters over di
Externí odkaz:
https://doaj.org/article/ac310a8b712d4a8890ab3fdc1d7d31d1
Publikováno v:
Remote Sensing, Vol 16, Iss 4, p 611 (2024)
Satellite laser altimetry technology, a novel space remote sensing technique, actively acquires high-precision elevation information about the Earth’s surface. However, the accuracy of laser altimetry can be compromised by alterations in the satell
Externí odkaz:
https://doaj.org/article/485c7562b95b49cdbf645bd7c4862b62
Autor:
Jonathan Sipps, Lori A. Magruder
Publikováno v:
Remote Sensing, Vol 15, Iss 23, p 5594 (2023)
Early spaceborne laser altimetry mission development starts in pre-phase A design, where diverse ideas are evaluated against mission science requirements. A key challenge is predicting realistic instrument performance through forward modeling at an a
Externí odkaz:
https://doaj.org/article/fc5c2542cf9d4f74913c039f181d2629