
CNR4 Net Radiometer
A-2
Figure A-1. Different measurement conditions and signals.
Upper
pyrgeometer
Day
with
alternating
cloud
fields
‐
180
‐
170
‐
160
‐
150
‐
140
‐
130
‐
120
‐
110
‐
100
‐
90
‐
80
‐
70
‐
60
‐
50
‐
40
‐
30
‐
20
‐
10
0
10
20
30
0:00
:00
1:00
:00
2:00
:00
3:00
:00
4:00
:00
5:00
:00
6:00
:00
7:00
:00
8:00
:00
9:00
:00
10:0
0
:0
0
11:0
0
:0
0
12:0
0
:0
0
13:0
0
:0
0
14:0
0
:0
0
15:0
0
:0
0
16:0
0
:0
0
17:0
0
:0
0
18:0
0
:0
0
19:0
0
:0
0
20:0
0
:0
0
21:0
0
:0
0
22:0
0
:0
0
23:0
0
:0
0
0:00
:00
pyrgeometer:
U_emf
/
Sensitivity
[W/m²]
Temp
YSI
44031
[°C]
Figure A-2. Partly cloudy day for the upward facing pyrgeometer.