surface pressure drift in bsh floats
DESCRIPTION
Surface Pressure drift in BSH Floats. Surface Pressure drift in BSH Floats. 0-1.1 dbar. Surface Pressure drift in BSH Nemo Floats. Surface pressure is measured after ascent and before descending Only positive pressure readings are recorded Negative pressure readings are truncated - PowerPoint PPT PresentationTRANSCRIPT
Surface Pressure drift in BSH Floats
Surface Pressure drift in BSH Floats
0 20 40 60 80 100 120 140 160 180 200-30
-20
-10
0
10
20
30
40
50
147
148149 150
151 152153
169172173
289
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298299
300301
302
2151
550
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553 554555
556
10601061 10621547
1548155015511552155315541555158616371757175817691770177121442145
2146
2147214821492150215221532316231823192320325032513252325332543255327932803281328232833284603060316032 60296033 60356034603660476062
6063
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6078
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6075
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6167
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6169617061866188618961906191
6192
6193621162636319632063216322 161721345748596768 697071727374757677
Cycle
Su
rfa
ce P
ress
ure
[db
ar]
All BSH floats
Paine and Amtec sensors
Druck sensor 2003-2007
Druck sensor 2008
0-1.1 dbar
Surface Pressure drift in BSH Nemo Floats
0 20 40 60 80 100 1200
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
16
1721
34
57
48
59
67
68
69 70
71
72
73
74
7576
77
Surface Pressure measurements from Nemo floats
Cycle
Su
rfa
ce P
ress
ure
[db
ar]
Surface pressure is measured after ascent and before descending
Only positive pressure readings are recorded
Negative pressure readings are truncated
CTD is in self correction mode (reset-offset)
Surface Pressure drift in BSH Nemo Floats: Effects of cumulative correction
0 20 40 60 80 100 120-2
-1
0
1
2
3
4
5
6
7
16
17
21
34
57
4859
6768
69
70
71
727374
757677
Cycle
Cu
mu
lativ
e s
urf
ace
pre
ssu
re [d
ba
r]Surface pressure measurements from Nemo floats, truncated negattive pressures fitted by noise