【题文】 麦克默多干谷(McMurdo Dry Valleys),位于南极洲麦克默多湾以西,这里几乎没有 降雪,只有一些陡峭的 U 型谷,谷底散布着一些含盐量达到 40%的小水塘(下图)。干谷面 积很大,约有 4000 平方千米,它是南极洲唯一没有冰层的区域。据此完成下面小题。【小题1】麦克默多干谷常年主导风向最可能是A.东北风B....
麦克默多干谷(McMurdo Dry Valleys),位于南极洲麦克默多湾以西,这里几乎没有降雪,只有一些陡峭的 U 型谷,谷底散布着一些含盐量达到40%的小水塘(如图)。干谷面积很大,约有4000平方千米,它是南极洲唯一没有冰层的区域。据此完成7～8题。麦克默多干谷常年主导风向最可能是( )A.东北风B.东南风C.西北风D.西南风 相...
The McMurdo Dry Valleys presently contain more than 20 permanent lakes and ponds, which vary markedly in character. All, with the exception of a hypersaline pond, have a perennial ice-cover. The dry valley lakes, and lakes in other ice-free regions of continental Antarctica, are unique on ...
water in the dry valleys is the melting of glaciers during the austral summer. Lewis, Fountain, and Langevin explain how t he t ermin us cliff melt from t he Can ada Glacier in Taylor Valley is the largest contributor to streamflow in Anderson Creek. They report that the melt on the ter...
The McMurdo Dry Valleys (MDVs), Antarctica, exist in a hyperarid polar desert, underlain by deep permafrost. With an annual mean air temperature of -18 A degrees C, the MDVs receive < 10 cm snow-water equivalent each year, collecting in leeward patches across the landscape. The landscape ...
麦克默多干谷(McMurdo Dry Valleys),位于南极洲麦克默多湾以西,这里几乎没有 降雪,只有一些陡峭的 U 型谷,谷底散布着一些含盐量达到 40%的小水塘(下图)。干谷面 积很大,约有 4000 平方千米,它是南极洲唯一没有冰层的区域。据此完成下面小题。 1.麦克默多干谷常年主导风向最可能是() ...
Strain DVS 5a1 was isolated from a moraine sample from the McMurdo Dry Valleys region of Antarctica. The strain is aerobic, Gram-positive, with white aerial mycelia and brown substrate mycelia, sporulating, has meso-diaminopimelic acid, arabinose and galactose in the cell wall, MK-8 (H4) as...
Pseudonocardia antarctica sp.nov.an actinomycetes from McMurdo Dry Valleys,Antarctica[J].{H}Systematic and Applied Microbiology,2004,(01):66-71.Vadivel Prabahar,Smita Dube,G.S.N. Reddy,S. Shivaji.Pseudonocardia antarctica sp. nov. an Actinomycetes from McMurdo Dry Valleys, Antarctica[J]....
This study measures the saturated hydraulic conductivity and grain-size distribution of 90 soil samples from the McMurdo Dry Valleys (MDV), Antarctica—primarily from Taylor Valley—to determine what processes affect the spatial distribution of saturated hydraulic conductivity in a simple, mineral-soil-...
We present detailed surface elevation measurements for the McMurdo Dry Valleys, Antarctica derived from aerial lidar surveys flown in the austral summer of 2014–2015 as part of an effort to understand geomorphic changes over the past decade. Lidar return density varied from 2 to >10returnsm2 wit...