Results 61 to 70 of about 40,531 (237)
Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil
Meteoritics &Planetary Science, EarlyView.Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta +9 more
wiley +1 more source
Natural Resources and Political Patronage in Africa: An Ethnicity Level Analysis
Review of Development Economics, EarlyView.ABSTRACT We investigate the effect of resource discoveries on ethnicity‐level political patronage in Africa using a large geospatial dataset of 254 ethnic groups in 15 countries over the period 1960–2004. We find that the first (or single first) resource discovery in a virgin ethnic homeland increases the share of cabinet posts of that ethnicity.
Sambit Bhattacharyya, Nemera Mamo
wiley +1 more source
Lineament mapping using sig and optical and radar remote sensing: The case of the Tafilalet plain (Southeastern Morocco) [PDF]
E3S Web of ConferencesThis research focuses on the mapping of lineaments in the Tafilalet plain, located in south-eastern Morocco, using a combination of optical (Landsat 8), radar (Sentinel-1A) and 10 m resolution digital terrain model (SRTM) remote sensing.
Mouzoun Ouafae +4 more
doaj +1 more source
Integration of LIDAR and IFSAR for mapping [PDF]
, 2004 LiDAR and IfSAR data is now widely used for a number of applications, particularly those needing a digital elevation model. The data is often complementary to other data such as aerial imagery and high resolution satellite data.
Dowman, I.J.
core
Correlate Mapping of Impervious Surfaces as Flood Risk Assessment Strategy in Owerri, Southeastern Nigeria [PDF]
, 2017 Owerri is rapidly growing in population and built environment, with corresponding, high increase in pavements or paved surfaces. This study explores the integrated approach of Remote Sensing (RS) and Geographic Information systems (GIS) techniques in ...
Anayo D. Udeh +4 more
core +3 more sources
Quantitative analysis of channel characteristics of distributive fluvial systems
Sedimentology, EarlyView.ABSTRACT Distributive fluvial systems (DFSs) are characterised by a radial distributive channel pattern in planform and dominate modern‐day sedimentary basins. Where aggradation occurs, such as in sedimentary basins, there is increased preservation potential, and therefore, DFSs are hypothesised to constitute a significant portion of the continental ...
Kwetishe Joro Danjuma +4 more
wiley +1 more source
Revista Ambiente & Água, 2019 The purpose of this study was to evaluate the performance of Digital Elevation Models (DEMs) in the morphometric characterization of a basin located in a transitional region between the São Francisco Plateau, São Francisco Depression and Espinhaço Range ...
Kevin Nunes Ficher +4 more
doaj +1 more source
Учёные записки Казанского университета: Серия Естественные науки, 2020 The accuracy of four global digital elevation models (GDEMs) was assessed at five key sites in the European part of Russia. Errors observed in the morphometric parameters were analyzed by comparing GDEMs representing the relief of the selected area with ...
I.A. Ashatkin +7 more
doaj +1 more source
X-Ray Studies of Blazar 1ES 1959+650 Using Swift and XMM-Newton Satellite
The Astrophysical Journal, 2023 High synchrotron energy peaked blazar 1ES 1959+650 was studied with the Swift and XMM-Newton satellites in a total of 127 observations during the period 2018 June–2020 December.
Kiran Wani, Haritma Gaur, M. K. Patil
doaj +1 more source
An Overview of Tsunami Hazards in the Southwest Pacific Ocean
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.The southwest Pacific region is geologically complex and exhibits all the principal causes of tsunami generation. While contemporary events and historical catalogs indicate that trans‐Pacific tsunamis have affected this area (∼18% of tsunamis reported globally), it is unique in that a large part of the tsunami effects over the ∼200‐year historical ...
Jean H. M. Roger +13 more
wiley +1 more source