Results 41 to 50 of about 52,652 (99)

Assessing the Impact of Kirkuk Cement Plant Emissions on Land cover by Modelling Gaussian Plume with Python and QGIS

Egyptian Journal of Remote Sensing and Space Sciences, 2023
This research uses the Python language to model the Gaussian Plume equation in Quantum Geographic Information System (QGIS) to estimate the contaminants released from the cement plant.
Qayssar Mahmood Ajaj, Helmi Zulhaidi Mohd Shafri, Aimrun Wayayok, Mohammad Firuz Ramli   +3 more
doaj   +1 more source

Current status and integrated restoration approaches in Haramaya Lake Watershed development

Nova Geodesia
Lake Haramaya, a critical watershed in Ethiopia, has experienced severe degradation due to climate variability, anthropogenic activities, and land-use changes.
Eliyas Abdi ALI, Petros CHAVULA, Dejene Workeneh SINTAYEHU, Yusuf UMER, Rogers AKATWIJUKA, El-Sayed M. EL-KENAWY, Benson TURYASINGURA   +6 more
doaj   +1 more source

Sensitivity of Goce Gradients on Greenland Mass Variation And Changes in Ice Topography

Journal of Geodetic Science, 2014
The Gravity field and steady state Ocean Circulation Explorer (GOCE) maps variations in the gravity field by observing second order derivatives (gradients) of the Earth gravitational potential.
Herceg M., Tscherning C. C., Levinsen J. F.   +2 more
doaj   +1 more source

A new spectral and spatial framework for detecting buildings with special roofing in hyperspectral images

Egyptian Journal of Remote Sensing and Space Sciences, 2022
One of the analyses in hyperspectral images is target detection. With recent developments and the creation of high spatial resolution images, the need to use both spectral and spatial information in the target detection has increased.
Davood Akbari
doaj   +1 more source

SBAS-InSAR analysis for deformation monitoring in landslide-prone areas: A case study of Murang’a and Nyeri Counties in Kenya

Nova Geodesia
Mass movement events impact thousands globally, causing loss of life, displacement of people and destruction of farmland and infrastructure, among other devastating impacts.
Alex M. YUMBU, Patroba A. ODERA
doaj   +1 more source

Global Eustatic Sea-Level Variations for the Approximation of Geocenter Motion from Grace

Journal of Geodetic Science, 2014
Global degree-1 coefficients are derived by means of the method by Swenson et al. (2008) from a model of ocean mass variability and RL05 GRACE monthly mean gravity fields.
Bergmann-Wolf Inga, Zhang Liangjing, Dobslaw Henryk   +2 more
doaj   +1 more source

Contribution of SAR/RADARSAT-1 and ASAR/ENVISAT images to geological structural mapping and assessment of lineaments density in Divo-Oume area (Côte d’Ivoire)

Egyptian Journal of Remote Sensing and Space Sciences, 2020
Access to drinking water and management of water resources are still a real issue in Côte d'Ivoire’s granitic and volcano-sedimentary basement regions. This situation is due to the combination of many factors including poor knowledge of hydrogeological ...
Bertrand Ouessé Tagnon, Vincent Tchimou Assoma, Jules Mangoua Oi Mangoua, Aristide Gountôh Douagui, Fernand Koffi Kouamé, Issiaka Savané   +5 more
doaj   +1 more source

Spatial analysis of particulate matter (PM10) using MODIS aerosol optical thickness observations and GIS over East Malaysia

Egyptian Journal of Remote Sensing and Space Sciences, 2023
Even though there are expert monitoring and assessment stations in large cities, air quality monitoring and measurement have a high cost and face significant issues. Data on air pollution can be acquired from remote sensing satellites for large areas and
Alaa Omer Najim, Maha Adnan Meteab, Abed Tuama Jasim, Qayssar Mahmood Ajaj, Huda Jamal Jumaah, Maryam Hassan Ahmed Sulyman   +5 more
doaj   +1 more source

On weighted total least squares adjustment for solving the nonlinear problems

Journal of Geodetic Science, 2014
In the classical geodetic data processing, a non- linear problem always can be converted to a linear least squares adjustment. However, the errors in Jacob matrix are often not being considered when using the least square method to estimate the optimal ...
Hu C., Chen Y., Peng Y.
doaj   +1 more source

Detection of a sinusoidal oscillation of unknownfrequency in a time series – a geodetic approach

Journal of Geodetic Science, 2014
Geodetic and geophysical time series may containsinusoidal oscillations of unknown angular frequency.Often it is required to decide if such sinusoidaloscillations are truly present in a given time series. Herewe pose the decision problem as a statistical
Lehmann R.
doaj   +1 more source