Level and Attitude Adjustor for In-Situ Calibration of Ocean Bottom Pressure Gauge

2017 ◽  
Vol 2017 (0) ◽  
pp. 2P1-G10
Author(s):  
Shuhei NISHIDA ◽  
Yuya MACHIDA ◽  
Eiichiro ARAKI ◽  
Katsuyoshi KAWAGUCHI
Keyword(s):  
Pressure Gauge ◽  
Ocean Bottom ◽  
Bottom Pressure ◽  
Ocean Bottom Pressure ◽  
In Situ Calibration ◽  
Bottom Pressure Gauge

scholarly journals Interplate Slip Following the 2003 Tokachi‐oki Earthquake From Ocean Bottom Pressure Gauge and Land GNSS Data

2019 ◽  
Vol 124 (4) ◽  
pp. 4205-4230 ◽  
Author(s):  
Yuji Itoh ◽  
Takuya Nishimura ◽  
Keisuke Ariyoshi ◽  
Hiroyuki Matsumoto
Keyword(s):  
Pressure Gauge ◽  
Ocean Bottom ◽  
Bottom Pressure ◽  
Ocean Bottom Pressure ◽  
Gnss Data ◽  
Bottom Pressure Gauge

Extracting near-field seismograms from ocean-bottom pressure gauge inside the focal area: application to the 2011 Mw 9.0 Tohoku-Oki earthquake

2020 ◽  
Author(s):  
Tatsuya Kubota ◽  
Tatsuhiko Saito ◽  
Hiroaki Tsushima ◽  
Ryota Hino ◽  
Yusaku Ohta ◽  
...  
Keyword(s):  
Near Field ◽  
Pressure Gauge ◽  
Ocean Bottom ◽  
Bottom Pressure ◽  
Ocean Bottom Pressure ◽  
Focal Area ◽  
Bottom Pressure Gauge

scholarly journals Ocean bottom pressure signals around Southern Africa from in situ measurements, satellite data, and modeling

2013 ◽  
Vol 118 (10) ◽  
pp. 4889-4898 ◽  
Author(s):  
Julian Kuhlmann ◽  
Henryk Dobslaw ◽  
Christof Petrick ◽  
Maik Thomas
Keyword(s):  
Satellite Data ◽  
Southern Africa ◽  
In Situ Measurements ◽  
Ocean Bottom ◽  
Bottom Pressure ◽  
Ocean Bottom Pressure

Evaluation of GRACE RL06 analysis in the Southern Ocean

2021 ◽  
Author(s):  
Jens Schröter ◽  
Alexey Androsov ◽  
Christina Lück ◽  
Bernd Übbing ◽  
Roelof Rietbroek ◽  
...  
Keyword(s):  
Spatial Scales ◽  
Ocean Bottom ◽  
Bottom Pressure ◽  
Mean Values ◽  
Annual Cycles ◽  
Ocean Bottom Pressure ◽  
Temporal Features ◽  
Depth Analysis ◽  
Circumpolar Current

<p>Space geodetic estimates of ocean bottom pressure (OBP) derived by several analysis centres are evaluated. To this end, an array of 14 in situ bottom pressure recorders has been deployed between South Africa and Antarctica. The continuous measurement period of four years (2011 to 2014) and a recorder spacing of roughly 2.8 degrees latitude allows an in-depth analysis of bottom pressure variability.</p><p>Our goal is to relate OBP from GRACE to in situ observations and detect which spatial and temporal features are reproduced. The recorders in the southern part of the transect generally tend to be in better agreement with GRACE and better reflect longer spatial scales of ocean bottom pressure. Over the vast expanse of the Antarctic Circumpolar Current annual and semi-annual cycles are weak (about 1cm equivalent water height (EWH)) and not reproduced well by GRACE. Variability in general amounts to a standard deviation of 2cm. This level is well captured and correlations on the order of 0.5 are found.</p><p>Mean values and trends of OBP cannot be identified due to the instrumental setup. Close to the Agulhas Retroflection, signals of up to 30cm EWH are found, which cannot be resolved by GRACE. Our  analysis reveals: GRACE OBP possesses longer space and time scales than in situ OBP and it misses eddy-scale signals. Filtering with DDK4 appears to be preferable to DDK6.</p><p> </p>

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