NIMBUS-? SMMR 
MAR 1,3,5 197 
  
TH} 
» AW RE 
LIGHT-GREY: NELTING, 
E dud : uM : i 
  
  
  
Figure 7 : Map of the snow cover over North America of March 1, 3, 5, Ill 
1979. White : dry snow, light grey : areas of melting snow, IN 
dark grey : snow free land surface. 
  
  
  
isphere 
E. Schanda, R. Hofer, Microwave Multispectral Investigations of Snow, Proc. li 
11th Internat. Symp. Rem. Sens. Environment, Ann Arbor, Mich., 25-29 April d 
1977, pp. 601-607 | 
E. Schanda, C. Maetzler, Optimum Characteristics for Snow Pack Evaluation by I 
Wave Microwave Radiometry, Adv. Space Res., 1, 151-162, (1981) I 
W.H. Stiles, F.T. Ulaby, The active and passive microwave response to snow 
y in the parameters, J. Geophys. Res. 85 C, 1037-1044 (1980) 
M.E. Tiuri, Theoretical and Experimental Studies of Microwave Emission Signatures | 
Science of Snow, IEEE Trans. Geosc. Rem. Sens., GE 20, 51-57, (1982) | 
Cover of 
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Nimbus-7 
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