Results 21 to 30 of about 2,519,529 (329)

Improved mapping functions for atmospheric refraction correction in SLR [PDF]

, 2002
[1] We present two new mapping functions (MFs) to model the elevation angle dependence of the atmospheric delay for satellite laser ranging (SLR) data analysis.
Langley, RB, Mendes, VB, Pavlis, DE, Pavlis, EC, Prates, Gonçalo   +4 more
core   +1 more source

Alkaloid Contents in Epichloë Endophyte-Infected Elymus tangutorum Sampled along an Elevation Gradient on the Qinghai-Tibetan Plateau

Agronomy, 2020
Alkaloids produced by endophytic fungi can have an important influence on agricultural ecology, and can often be affected by climatic factors. At present, there are no studies that have assessed the relationship between alkaloid production and elevation ...
Qian Shi, Cory Matthew, Wenhui Liu, Zhibiao Nan   +3 more
doaj   +1 more source

ICESat: Ice, Cloud, and land Elevation Satellite [PDF]

, 2007
This brochure describes NASA's ICESat mission ((Ice, Cloud, and land Elevation Satellite), which was launched January 12, 2003. ICESat is the benchmark Earth Observing System mission for measuring ice sheet mass balance, cloud and aerosol heights, as ...

core   +1 more source

The Reference Elevation Model of Antarctica

The Cryosphere, 2018
. The Reference Elevation Model of Antarctica (REMA) is the first continental-scale digital elevation model (DEM) at a resolution of less than 10 m. REMA is created from stereophotogrammetry with submeter resolution optical, commercial satellite imagery.
I. Howat, C. Porter, Ben E. Smith, M. Noh, P. Morin   +4 more
semanticscholar   +1 more source

Plant species diversity and environmental factor relations in black pine, brutian pine, crimean juniper and oak forests

Turkish Journal of Forestry, 2023
In this study, plant species diversity in Black pine, Red pine, Crimean juniper and oak forests in Dursunbey (Balıkesir) district was associated with some environmental variables and stand characteristics.
Halil İbrahim Ürkmez, Serkan Gülsoy
doaj   +1 more source

ST-Elevation Myocardial Infarction in Patients With COVID-19

Circulation, 2020
June 23/30 ...
G. Stefanini, M. Montorfano, D. Trabattoni, D. Andreini, G. Ferrante, M. Ancona, M. Metra, S. Curello, D. Maffeo, G. Pero, M. Cacucci, E. Assanelli, B. Bellini, F. Russo, A. Ielasi, M. Tespili, G. Danzi, P. Vandoni, M. Bollati, L. Barbieri, J. Oreglia, C. Lettieri, A. Cremonesi, Stefano Carugo, B. Reimers, G. Condorelli, A. Chieffo   +26 more
semanticscholar   +1 more source

Over the hills and further away from coast: global geospatial patterns of human and environment over the 20th–21st centuries

Environmental Research Letters, 2016
Proximity to the coast and elevation are important geographical considerations for human settlement. Little is known, however, about how spatial variation in these factors exactly relates to human settlements and activities, and how this has developed ...
Matti Kummu, Hans de Moel, Gianluigi Salvucci, Daniel Viviroli, Philip J Ward, Olli Varis   +5 more
doaj   +1 more source

Coronary Angiography after Cardiac Arrest without ST‐Segment Elevation

New England Journal of Medicine, 2019
BACKGROUND Ischemic heart disease is a major cause of out‐of‐hospital cardiac arrest. The role of immediate coronary angiography and percutaneous coronary intervention (PCI) in the treatment of patients who have been successfully resuscitated after ...
J. Lemkes, G. Janssens, N. W. van der Hoeven, L. Jewbali, E. Dubois, M. Meuwissen, T. Rijpstra, H. Bosker, M. Blans, G. Bleeker, R. Baak, G. Vlachojannis, B. Eikemans, P. van der Harst, I. C. van der Horst, M. Voskuil, J. J. van der Heijden, A. Beishuizen, M. Stoel, C. Camaro, H. van der Hoeven, J. Henriques, A. Vlaar, M. Vink, B. van den Bogaard, T. Heestermans, W. de Ruijter, T. Delnoij, H. Crijns, G. Jessurun, P. Oemrawsingh, M. Gosselink, K. Plomp, M. Magro, P. Elbers, P. M. van de Ven, H. O. Oudemans-van Straaten, N. van Royen   +37 more
semanticscholar   +1 more source

Efficiency Evaluation of Dong Model for Determination of Fire Risk Potential in Zarrin Abad Forests [PDF]

تحقیقات جنگل و صنوبر ایران, 2013
Continues occurrence of fire in northern forests of Iran during past years, necessitates conducting research, in order to predict future fire occurrence in these forests. For this reason a 1:25000 topographical map of Zarrin Abad Forests of Neka Township
Saeideh Eskandari, Jafar Oladi Ghadikolaei, Hamid Jalilvand   +2 more
doaj   +1 more source

Quantifying Lidar Elevation Accuracy: Parameterization and Wavelength Selection for Optimal Ground Classifications Based on Time since Fire/Disturbance

Remote Sensing, 2022
Pre- and post-fire airborne lidar data provide an opportunity to determine peat combustion/loss across broad spatial extents. However, lidar measurements of ground surface elevation are prone to uncertainties.
Kailyn Nelson, Laura Chasmer, Chris Hopkinson   +2 more
doaj   +1 more source