Results 11 to 20 of about 1,255,495 (313)

Accuracy Assessment of Lidar Elevation Data Using Survey Marks [PDF]

, 2011
Airborne LiDAR has become the preferred technology for digital elevation data acquisition in a wide range of applications. The vertical accuracy with respect to a specified vertical datum is the principal criterion in specifying the quality of LiDAR ...
Liu, Xiaoye, Xiaoye Liu
core   +1 more source

A Multi-Level Non-Uniform Spatial Sampling Method for Accuracy Assessment of Remote Sensing Image Classification Results

Applied Sciences, 2020
Accuracy assessment of classification results has important significance for the application of remote sensing images, which can be achieved by sampling methods.
Zhenhua Wang, Lizhi Xu, Qing Ji, Wei Song, Lingqun Wang   +4 more
doaj   +1 more source

Accuracy assessment and error cause analysis of GPM (V06) in Xiangjiang river catchment

Hydrology Research, 2021
Application potential and development prospect of satellite precipitation products such as Tropical Rainfall Measuring Mission (TRMM) and Global Precipitation Mission (GPM) have promising implications.
Bingru Tian, Hua Chen, Jialing Wang, Chong-Yu Xu   +3 more
doaj   +1 more source

Accuracy Assessment and Correction of SRTM DEM Using ICESat/GLAS Data under Data Coregistration

Remote Sensing, 2020
Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM) inherently suffers from various errors. Many previous works employed Geoscience Laser Altimeter System onboard the Ice, Cloud, and land Elevation Satellite (ICESat/GLAS) data to assess
Chuanfa Chen, Shuai Yang, Yanyan Li
doaj   +1 more source

GHS-POP Accuracy Assessment: Poland and Portugal Case Study

Remote Sensing, 2020
The Global Human Settlement Population Grid (GHS-POP) the latest released global gridded population dataset based on remotely sensed data and developed by the EU Joint Research Centre, depicts the distribution and density of the total population as the ...
Beata Calka, Elzbieta Bielecka
doaj   +1 more source

Satellite-based evaluation of temporal change in cultivated land in Southern Punjab (Multan region) through dynamics of vegetation and land surface temperature

Open Geosciences, 2021
The rapid increase in urbanization has an important effect on cropping pattern and land use/land cover (LULC) through replacing areas of vegetation with commercial and residential coverage, thereby increasing the land surface temperature (LST).
Hussain Sajjad, Mubeen Muhammad, Ahmad Ashfaq, Masood Nasir, Hammad Hafiz Mohkum, Amjad Muhammad, Imran Muhammad, Usman Muhammad, Farid Hafiz Umar, Fahad Shah, Nasim Wajid, Javeed Hafiz Muhammad Rashad, Ali Mazhar, Qaisrani Saeed Ahmad, Farooq Amjad, Khalid Muhammad Shafique, Waleed Mirza   +16 more
doaj   +1 more source

The Effect of Environmental Conditions on the Quality of UAS Orthophoto-Maps in the Coastal Environment

ISPRS International Journal of Geo-Information, 2021
Marine conservation and management require detailed and accurate habitat mapping, which is usually produced by collecting data using remote sensing methods.
Michaela Doukari, Stelios Katsanevakis, Nikolaos Soulakellis, Konstantinos Topouzelis   +3 more
doaj   +1 more source

How Response Designs and Class Proportions Affect the Accuracy of Validation Data

Remote Sensing, 2020
Reference data collected to validate land-cover maps are generally considered free of errors. In practice, however, they contain errors despite best efforts to minimize them.
Julien Radoux, François Waldner, Patrick Bogaert   +2 more
doaj   +1 more source

Assessing the Accuracy and Consistency of Six Fine-Resolution Global Land Cover Products Using a Novel Stratified Random Sampling Validation Dataset

Remote Sensing, 2023
Over the past decades, benefiting from the development of computing capacity and the free access to Landsat and Sentinel imagery, several fine-resolution global land cover (GLC) products (with a resolution of 10 m or 30 m) have been developed ...
Tingting Zhao, Xiao Zhang, Yuan Gao, Jun Mi, Wendi Liu, Jinqing Wang, Mihang Jiang, Liangyun Liu   +7 more
doaj   +1 more source

Validating the Quality of Volunteered Geographic Information (VGI) for Flood Modeling of Hurricane Harvey in Houston, Texas

Hydrology, 2023
The primary objective of this study was to examine the quality of volunteered geographic information (VGI) data for flood mapping of Hurricane Harvey. As a crowdsourcing platform, the U-Flood project mapped flooded streets in the Houston metro area. This
T. Edwin Chow, Joyce Chien, Kimberly Meitzen   +2 more
doaj   +1 more source