Results 71 to 80 of about 136,807 (287)
Long‐Term Variability and Spatial Differentiation of the Frost‐Free Period in Iceland
International Journal of Climatology, EarlyView.Warming in Iceland (May–September) is expressed as fewer Tmin < 0°C days in the interior and more Tmin > 0°C days along the coasts. ABSTRACT Climate change in subarctic regions leads to significant transformations in thermal conditions; however, the long‐term variability of the frost‐free season (FFS)—and consequently, the growing period—remains poorly
Katarzyna Piotrowicz +3 more
wiley +1 more source
Modeling glacier‐surface albedo across Svalbard for the 1979–2015 period: The HiRSvaC500‐α data set
Journal of Advances in Modeling Earth Systems, 2017 Albedo is an important quantity for determining the energy balance of snow and ice surfaces and thus also for the mass balance of glaciers. It is especially important in polar regions where shortwave radiation fluxes typically provide most of the energy ...
Marco Möller, Rebecca Möller
doaj +1 more source
How well do the regional atmospheric and oceanic models describe the Antarctic sea ice albedo? [PDF]
The CryosphereWe assessed how well regional climate models (HCLIM, MAR, RACMO), ocean models (MetROMS-UHel, NEMO), and ERA5 reanalysis simulate Antarctic sea ice albedo, snow, and ice thickness, using in situ data from field campaigns (ISPOL, Weddell Sea, in December ...
K. Verro +15 more
doaj +1 more source
Albedos of Main-Belt Comets 133P/Elst-Pizarro and 176P/LINEAR [PDF]
, 2009 We present the determination of the geometric R-band albedos of two main-belt comet nuclei based on data from the Spitzer Space Telescope and a number of ground-based optical facilities.
Buzzoni +17 more
core +4 more sources
Land Degradation &Development, EarlyView.ABSTRACT Coal remains a major global energy source despite ongoing environmental controversies, particularly, regarding climate change and landscape transformation. This study investigates the spatiotemporal dynamics of land use and land cover (LULC) in the Moatize Coal Basin (MCB), Mozambique, between 1990 and 2024, with a specific focus on land ...
Ivan Latinho Naite +2 more
wiley +1 more source
Composition of Near-Earth Asteroid 2008 EV5: Potential target for Robotic and Human Exploration
, 2012 We observed potentially hazardous asteroid (PHA) 2008 EV5 in the visible (0.30-0.92 microns) and near-IR (0.75-2.5 microns) wavelengths to determine its surface composition. This asteroid is especially interesting because it is a potential target for two
Benner +27 more
core +1 more source
Evidence for fresh frost layer on the bare nucleus of comet Hale--Bopp at 32 AU distance [PDF]
, 2012 Here we report that the activity of comet Hale--Bopp ceased between late 2007 and March, 2009, at about 28 AU distance from the Sun. At that time the comet resided at a distance from the Sun that exceeded the freeze-out distance of regular comets by an ...
Hogerheijde, M. R. +6 more
core +2 more sources
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Using a large and novel array of instruments on five rockwalls in northern Gaspesia, their respective surface energy balances were calculated and their thermal regimes were measured and modeled to depths exceeding the seasonal frost penetration.
Tom Birien, Francis Gauthier
wiley +1 more source
Atmosphere, 2017 Tower-based data combined with high-resolution satellite products have been used to produce surface albedo at various spatial scales over land. Because tower-based albedo data are available at only a few sites, surface albedos using these combined data ...
Evgueni Kassianov +5 more
doaj +1 more source
On the calibration of the relation between geometric albedo and polarimetric properties for the asteroids [PDF]
, 2015 We present a new extensive analysis of the old problem of finding a satisfactory calibration of the relation between the geometric albedo and some measurable polarization properties of the asteroids.
Bagnulo, S. +5 more
core +5 more sources