Part II - Continuous Observations

Table 1 below summaries the in situ and remote sensing deployed during BLLAST over the 3 sites, for continuous observation from 14 June to 8 July.
We describe here the deployment of those instruments for the observation of (1) the surface layer processes, (2) boundary layer profiling, (3) sky monitoring, and (4) Aerosol content.

 Super site 1Super site 2Site 3
Instrumented Towers
60 m tower
5 levels
HR, LR wind
HR, LR temperature
HR, LR humidity
Soil moisture
IR Camera
Radiation Divergence
10 m tower
5 levels - radiation
Skin flow
4 levels
HR wind
HR temperature
2 m towers (*#*)
1 level
Soil moisture
30 m tower
HR, LR wind
HR, LR temperature
HR, LR humidity
Surface temperature
probes network
X X  
Wind profilers
VHF wind profiler X    
UHF wind profiler X X  
sodar X   X
Aerosol Lidar X X  
Doppler Lidar X    
Humidity Profilers
Radiometer X    
Scintillometry X    
Ceilometery X X  
Full Sky Imagery X    
Microbarometry X    
Aerosols X    
Table 1 : distribution of the continuous observation over the three sites.

The map below shows the position of the two surface super sites 1&2. Super-site 1 was especially dedicated to a thorough monitoring of the vertical structure, and super-site 2 to the surface heterogeneity study.

Figure 4: Super sites 1 and 2

Super site 1: Thorough vertical monitoring of the first 3 km of the atmosphere

Figure 5: Location of "Edge effect", "divergence", "60-m tower" and Micro-scale surface heterogeneity sites on super site 1.

Super site 2: Impact of the surface heterogeneity.

Figure 6: Surface cover types on super site 2, positioning of EC station, remote sensing and extra ground temperature probes.
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