منابع مشابه
Deriving Bathymetry from Multispectral Remote Sensing Data
The use of passive satellite sensor data in shallow waters is complicated by the combined atmospheric, water, and bottom signals. Accurate determination of water depth is important for monitoring underwater topography and detection of moved sediments and in support of navigation. A Worldview 2 (WV2) image was used to develop high-resolution bathymetric maps (four meters) that were validated usi...
متن کاملPassive Multispectral Bathymetry Mapping of Negril Shores, Jamaica
A new method was tested using SPOT images for mapping of variations of the reflectances and depth of sea-bottom French Polynesia, where the standard error on computed depth was less than 0.2 m for average depths of 2 m. The method uses "soils line" for zero-depth calibration and "brightest pixels line" for diffuse attenuation coefficients and actual value of K as linear functions of band ratios...
متن کاملA Modified Lyzenga's Model for Multispectral Bathymetry Using Tikhonov Regularization
The derivation of shallow-water bathymetry from multispectral satellite images has become a highly active field of research in recent years. Nowadays, as satellite images become more and more freely available worldwide and easily accessible, this type of technique is a cost-effective surrogate for the derivation of bathymetric information, about even the most remote areas. In fact, traditional ...
متن کاملRemote Sensing-Derived Bathymetry of Lake Poopó
Located within the Altiplano at 3,686 m above sea level, Lake Poopó is remarkably shallow and very sensitive to hydrologic recharge. Progressive drying has been observed in the entire Titicaca-Poopó-Desaguadero-Salar de Coipasa (TPDS) system during the last decade, causing dramatic changes to Lake Poopó’s surface and its regional water supplies. Our research aims to improve understanding of Lak...
متن کاملAutomatic Hotspot and Sun Glint Detection in UAV Multispectral Images
Last advances in sensors, photogrammetry and computer vision have led to high-automation levels of 3D reconstruction processes for generating dense models and multispectral orthoimages from Unmanned Aerial Vehicle (UAV) images. However, these cartographic products are sometimes blurred and degraded due to sun reflection effects which reduce the image contrast and colour fidelity in photogrammet...
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2020
ISSN: 2072-4292
DOI: 10.3390/rs12233897