Table 1. Specification of MSR of MOS-1 BBM 
  
  
  
  
  
  
  
Frequency 23.8 GHz 31.4 GHz 
RF Bandwidth 400 MHz 500 MHz 
Beam width 1.99 deg. 1.45 deg. 
Integration 
Time 10 & 47 msec 10 & 47 msec 
Radiometric 
Resolution 1.0 Kat 300 K| 1.0 Kat 300 K 
Dynamic Range 30 - 330 K 30 - 330 K 
Polarization Horizontal * Vertical * 
  
  
  
  
  
* In the field experiment, BBM was modified 
to dual polarization 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Table 2. Parameters of experiments 
Incident| Polari- Sampling 
Parameter Angle zatiön Time Remarks 
Incident Ang.| 0? - 60?| H/V (23/31)| 5/2 min 
Dependence 15? step 
Polarization à H-V (23/31) ; 
Dependence 15 15° step 5 min 
Diurnal > Ho ("23") : 
Variation 10 V (31 5 min g Ae 
Snow Depth $ Hsv («2373 ; " 
Dependence 10 V (31) 5 min 0-130 cm 
Table 3. Ground truth data 
parameter Instrument Parameter Instrument 
Solar : 
Snow Depth Snow Pole Radiation Pyrheliometer 
: Radiation : 
Water Equiv.| Snow Sampler Budget Net Radiometer 
Density Density Gauge | Wind Anemometer 
Snow nes Thermometer Air Temp. Thermometer 
  
  
  
  
  
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Fig. : 
ANT : 
WG 
OMT : 
SW 
NS 
CNS : 
FC) > CI +