Zobrazeno 1 - 10
of 23
pro vyhledávání: '"N. P. Arnold"'
Autor:
N. P. Arnold
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 5041-5056 (2024)
Earth system models (ESMs) typically represent surface heterogeneity on scales smaller than the atmospheric grid, while land–atmosphere coupling is based on grid mean values. Here we present a general approach allowing subgrid surface heterogeneity
Externí odkaz:
https://doaj.org/article/fe5c0b35c0814821bfa3790b0bac12fb
Autor:
K. L. Findell, Z. Yin, E. Seo, P. A. Dirmeyer, N. P. Arnold, N. Chaney, M. D. Fowler, M. Huang, D. M. Lawrence, P.-L. Ma, J. A. Santanello Jr.
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 1869-1883 (2024)
Land–atmosphere (L–A) interactions are important for understanding convective processes, climate feedbacks, the development and perpetuation of droughts, heatwaves, pluvials, and other land-centered climate anomalies. Local L–A coupling (LoCo)
Externí odkaz:
https://doaj.org/article/c3a498ee21d84253b91b86b389cdb8a7
Autor:
J. D. Kirkham, K. A. Hogan, R. D. Larter, N. S. Arnold, F. O. Nitsche, N. R. Golledge, J. A. Dowdeswell
Publikováno v:
The Cryosphere, Vol 13, Pp 1959-1981 (2019)
Outburst floods from subglacial lakes beneath the Antarctic Ice Sheet modulate ice-flow velocities over periods of months to years. Although subglacial lake drainage events have been observed from satellite-altimetric data, little is known about thei
Externí odkaz:
https://doaj.org/article/c5ff8d7781374c8497b631773892440f
Publikováno v:
The Cryosphere, Vol 12, Pp 3045-3065 (2018)
Remote sensing is commonly used to monitor supraglacial lakes on the Greenland Ice Sheet (GrIS); however, most satellite records must trade off higher spatial resolution for higher temporal resolution (e.g. MODIS) or vice versa (e.g. Landsat). Her
Externí odkaz:
https://doaj.org/article/8bc132200a0a415a9df0ca8f284d89d2
Publikováno v:
The Cryosphere, Vol 8, Iss 4, Pp 1149-1160 (2014)
Seasonal meltwater lakes on the Greenland Ice Sheet form when surface runoff is temporarily trapped in surface topographic depressions. The development of such lakes affects both the surface energy balance and dynamics of the ice sheet. Although area
Externí odkaz:
https://doaj.org/article/a5fa3215e1f0437d8275cadc63bfebc7
Publikováno v:
Advances in Geosciences, Vol 13, Pp 37-43 (2008)
We present an order of magnitude estimate of the impact of sprites and other transient luminous events (TLEs) on the atmospheric temperature via ozone changes. To address the effects of expected TLE-ozone changes of at most a few percent, we first st
Externí odkaz:
https://doaj.org/article/834819856a834ad1918848f5f851e0c6
Publikováno v:
Annales Geophysicae, Vol 22, Pp 4049-4059 (2004)
Polar mesosphere summer echoes (PMSEs) have been well studied using vertical incidence VHF radars at northern high-latitudes. In this paper, two PMSE events detected with the oblique incidence SuperDARN HF radars at Hankasalmi, Finland (62.3° N)
Externí odkaz:
https://doaj.org/article/c495430ceb9447deb974290b60e07bae
Publikováno v:
Annales Geophysicae, Vol 21, Pp 2073-2082 (2003)
The SuperDARN chain of oblique HF radars has provided an opportunity to generate a unique climatology of horizontal winds near the mesopause at a number of high latitude locations, via the Doppler shifted echoes from sources of ionisation in th
Externí odkaz:
https://doaj.org/article/de4a83e42fb04b0680960dcd25ad7e36
Publikováno v:
Annales Geophysicae, Vol 21, Pp 1047-1055 (2003)
Peculiar near range echoes observed in summer with the SuperDARN HF radar in Finland are presented. The echoes were detected at four frequencies of 9, 11, 13 and 15 MHz at slant ranges of 105–250 km for about 100 min. Interferometer measureme
Externí odkaz:
https://doaj.org/article/e0909fad3a5c49b591da7cb14b92ae7a
Publikováno v:
Annales Geophysicae, Vol 20, Pp 225-235 (2002)
A new coupled middle atmosphere and thermosphere general circulation model has been developed, and some first results are presented. An investigation into the effects of the diurnal tide upon the mean composition, dynamics and energetics was ca
Externí odkaz:
https://doaj.org/article/c19dd76403b8419d903b08228e1f80e8