Zobrazeno 1 - 10
of 21
pro vyhledávání: '"D. K. Hall"'
Publikováno v:
Hydrology and Earth System Sciences, Vol 23, Pp 5227-5241 (2019)
MODerate resolution Imaging Spectroradiometer (MODIS) cryosphere products have been available since 2000 – following the 1999 launch of the Terra MODIS and the 2002 launch of the Aqua MODIS – and include global snow-cover extent (SCE) (swath, dai
Externí odkaz:
https://doaj.org/article/64848571f41944afb076175818563779
Publikováno v:
The Cryosphere, Vol 12, Pp 907-920 (2018)
As rapid warming of the Arctic occurs, it is imperative that climate indicators such as temperature be monitored over large areas to understand and predict the effects of climate changes. Temperatures are traditionally tracked using in situ 2 m ai
Externí odkaz:
https://doaj.org/article/0f685552390f423aa0c62e0c461a097e
Publikováno v:
Earth System Science Data, Vol 9, Pp 765-777 (2017)
Knowledge of the distribution, extent, duration and timing of snowmelt is critical for characterizing the Earth's climate system and its changes. As a result, snow cover is one of the Global Climate Observing System (GCOS) essential climate variab
Externí odkaz:
https://doaj.org/article/ea4fd667a5c94f5fb8f5d127199e0615
Publikováno v:
The Cryosphere, Vol 6, Iss 4, Pp 821-839 (2012)
Greenland ice sheet mass loss has accelerated in the past decade responding to combined glacier discharge and surface melt water runoff increases. During summer, absorbed solar energy, modulated at the surface primarily by albedo, is the dominant fac
Externí odkaz:
https://doaj.org/article/d6d11d306c1d4f7cacfb178d698bb21f
Publikováno v:
Journal of Turbomachinery. 145
This paper presents an assessment of the effect of nonaxisymmetric fan exit guide vanes (FEGVs) to mitigate, or even reduce to zero, the impact of circumferential flow distortion—such as created by boundary layer ingestion (BLI)—on fan rotor effi
Publikováno v:
Journal of Turbomachinery. 144
This article presents first-of-a-kind measurements, and complementary computations, of the flow through the propulsion system of a boundary layer ingesting, twin-engine advanced civil transport aircraft configuration. The experiments were carried out
Autor:
Murzy D. Jhabvala, D. K. Hall, C. Chris Chickadel, D. E. Jennings, Christopher J. Crawford, E.J. Kim, Jessica D. Lundquist, E. L. DeMarco, Allen Lunsford
Publikováno v:
IGARSS
SnowEx is a winter airborne and field campaign designed to measure snow-water equivalent in forested landscapes. A major focus of Year 1 (2016–17) of NASA's SnowEx campaign will be an extensive field program involving dozens of participants from U.
Autor:
Richard I. Cullather, Josefino C. Comiso, D. K. Hall, Nicolo E. DiGirolamo, Brooke Medley, Sophie Nowicki
Publikováno v:
IGARSS
A new multilayer IST-albedo Moderate Resolution Imaging Spectroradiometer (MODIS) product of Greenland was developed to meet the needs of the ice sheet modeling community. The multiple layers of the product enable the relationship between IST and alb
Autor:
J. J. Defoe, D. K. Hall
Publikováno v:
Volume 2A: Turbomachinery.
Applications such as boundary-layer-ingesting fans, and compressors in turboprop engines require continuous operation with distorted inflow. A low-speed axial fan with incompressible flow is studied in this paper. Previous work in the literature has
Publikováno v:
Polar Geography. 25:41-53