Results 11 to 20 of about 286,506 (300)

Prediction of Deep Formation Temperature and Its Implications for Resource Development: A Case Study from the Bide-Santang Basin, Guizhou [PDF]

E3S Web of Conferences
Based on 135 boreholes temperature measurement data and the thermal physical parameters tests of coal and rock samples, this dissertation analyzed the modern geothermal gradient, the terrestrial heat flow and the stratum temperature distribution ...
Lu Lingling
doaj   +1 more source

Optimizing surveys of fall‐staging geese using aerial imagery and automated counting

Wildlife Society Bulletin, 2023
Ocular aerial surveys allow efficient coverage of large areas and can be used to monitor abundance and distribution of wild populations. However, uncertainty around resulting population estimates can be large due to difficulty in visually identifying and
Emily L. Weiser, Paul L. Flint, Dennis K. Marks, Brad S. Shults, Heather M. Wilson, Sarah J. Thompson, Julian B. Fischer   +6 more
doaj   +1 more source

Aerial Drone Survey

International Journal of Advanced Research in Science, Communication and Technology, 2022
The use of unmanned aerial vehicles (UAVs) is growing rapidly across many civil application domains including real-time monitoring, providing wireless coverage, remote sensing, search and rescue, delivery of goods, security and surveillance, precision agriculture, and civil infrastructure inspection.
null Reshma K R, null Asif Shameer, null Dharsan K   +2 more
openaire   +1 more source

Marine mammal biodiversity and rare narwhal (Monodon monoceros) observations near northern Ellesmere Island, Canada

Ecosphere, 2021
A climate‐driven decline of sea ice has increased international interest in understanding the ecology of seldom studied high‐Arctic regions projected to retain the last remnants of summer sea ice.
Cody G. Carlyle, Katie R. N. Florko, Brent G. Young, David J. Yurkowski, Christine Michel, Steven H. Ferguson   +5 more
doaj   +1 more source

Savannas of southern Africa: attributes and use of some types along the Tropic of Capricorn

Bothalia: African Biodiversity & Conservation, 1983
Two recent reconnaissance vegetation surveys of savanna in the Kalahari of Botswana and in the western Transvaal (RSA) carried out on a landscape basis are described. Attributes and utilization of four selected stations along a transect of about 1 000 km
F. van der Meulen, H. A. M. J. van Gils
doaj   +1 more source

Improving accuracy of automated 3-D building models for smart cities

International Journal of Digital Earth, 2019
Photorealistic three-dimensional (3-D) models are important tools for urban and disaster management planning because they contain useful visual and spatial information for assessing the situation and responding accordingly.
Byungyun Yang, Jungil Lee
doaj   +1 more source

Bowhead whale calf detections in the western Beaufort sea during the open water season, 2012–2019

Arctic Science, 2022
Successful reproduction is essential to a species existence. Here we summarize Bering–Chukchi–Beaufort (BCB) bowhead whale (Balaena mysticetus Linnaeus, 1758) calf distribution, ratio of calf to adult sightings, and encounter rate from data collected ...
J.T. Clarke, M.C. Ferguson, S.R. Okkonen, A.A. Brower, A.L. Willoughby   +4 more
doaj   +1 more source

REPORT ON THE MAP OF WEST ONGUL ISLAND

Antarctic Record, 1965
0ne sheet map of West Ongul Island, separated by a narrow strait from East Ongul Island in which Syowa Station is situated, was compiled with 1 : 5,000 scale.
Arao YOSHIDA, Yoshio SAITO
doaj   +1 more source

Urban Forest Growth and Gap Dynamics Detected by Yearly Repeated Airborne Light Detection and Ranging (LiDAR): A Case Study of Cheonan, South Korea

Remote Sensing, 2019
Understanding forest dynamics is important for assessing the health of urban forests, which experience various disturbances, both natural (e.g., treefall events) and artificial (e.g., making space for agricultural fields).
Heejoon Choi, Youngkeun Song, Youngwoon Jang   +2 more
doaj   +1 more source

Assessing rotation-invariant feature classification for automated wildebeest population counts [PDF]

, 2016
Accurate and on-demand animal population counts are the holy grail for wildlife conservation organizations throughout the world because they enable fast and responsive adaptive management policies.
Borner, Felix, Borner, Markus, Dobson, Andrew P., Fredrick, Howard, Hopcraft, J. Grant C., Lloyd-Jones, David J., Maliti, Honori T., Moyer, David, Mwita, Machoke, Torney, Colin J.   +9 more
core   +3 more sources