scholarly journals Permeability versus depth in the upper oceanic crust: In situ measurements in DSDP hole 504B, eastern equatorial Pacific

1985 ◽  
Vol 90 (B5) ◽  
pp. 3659 ◽  
Author(s):  
Roger N. Anderson ◽  
Mark D. Zoback ◽  
Stephen H. Hickman ◽  
Robin L. Newmark
Keyword(s):  
Oceanic Crust ◽  
Equatorial Pacific ◽  
In Situ Measurements ◽  
Eastern Equatorial Pacific

From the lavas to the gabbros: 1.25km of geochemical characterization of upper oceanic crust at ODP/IODP Site 1256, eastern equatorial Pacific

Lithos ◽  
2014 ◽  
Vol 210-211 ◽  
pp. 289-312 ◽  
Author(s):  
Tobias W. Höfig ◽  
Jörg Geldmacher ◽  
Kaj Hoernle ◽  
Folkmar Hauff ◽  
Svend Duggen ◽  
...  
Keyword(s):  
Oceanic Crust ◽  
Equatorial Pacific ◽  
Geochemical Characterization ◽  
Eastern Equatorial Pacific

In-situ Fe isotope ratio determination in Fe–Ti oxides and sulfides from drilled gabbros and basalt from the IODP Hole 1256D in the eastern equatorial Pacific

2014 ◽  
Vol 363 ◽  
pp. 101-113 ◽  
Author(s):  
Wanja Dziony ◽  
Ingo Horn ◽  
Dominique Lattard ◽  
Jürgen Koepke ◽  
Grit Steinhoefel ◽  
...  
Keyword(s):  
Isotope Ratio ◽  
Equatorial Pacific ◽  
Ti Oxides ◽  
Eastern Equatorial Pacific ◽  
Ratio Determination

scholarly journals Tropical instability wave modulation of chlorophyll-a in the Equatorial Pacific

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Wei Shi ◽  
Menghua Wang
Keyword(s):  
Chlorophyll A ◽  
Equatorial Pacific ◽  
In Situ Measurements ◽  
Sea Surface ◽  
Instability Wave ◽  
Maximum Magnitude ◽  
Time Lags ◽  
Biological Variability ◽  
Chl A

AbstractThe global daily gap-free chlorophyll-a (Chl-a) data derived using the data interpolating empirical orthogonal functions (DINEOF) technique from observations of the Visible Infrared Imaging Radiometer Suite (VIIRS) in 2020 and the in situ measurements at the Tropical Ocean Atmosphere (TAO) moorings are used to characterize and quantify the biological variability modulated by the tropical instability wave (TIW). Our study aims to understand how ocean physical processes are linked to biological variability. In this study, we use the TAO in situ measurements and the coincident VIIRS Chl-a data to identify the mechanism that drives ocean biological variability corresponding to the TIW. Satellite observations show that the TIW-driven Chl-a variability stretched from 90°W to 160°E in the region. The enhanced Chl-a pattern propagated westward and moderately matched the cooler sea surface temperature (SST) patterns in the Equatorial Pacific Ocean. In fact, the Chl-a variation driven by the TIW is about ± 30% of mean Chl-a values. Furthermore, the time series of Chl-a at 140°W along the equator was found to be in phase with sea surface salinity (SSS) at 140°W along the equator at the TAO mooring since late May 2020. The cross-correlation coefficients with the maximum magnitude between Chl-a and SST, Chl-a and SSS, and Chl-a and dynamic height were –0.46, + 0.74, and –0.58, respectively, with the corresponding time lags of about 7 days, 1 day, and 8 days, respectively. The different spatial patterns of the cooler SST and enhanced Chl-a are attributed to the phase difference in Chl-a and SST. Indeed, a Chl-a peak normally coincided with a SSS peak and vice versa. This could be attributed to the consistency in the change in nutrient concentration with respect to the change of SSS. The vertical distributions of the temperature and salinity at 140°W along the equator reveal that the TIW leads to changes in both salinity and nutrient concentrations in the sea surface, and consequently drives the Chl-a variability from late May until the end of the year 2020.

Dissolution of foraminifera in the eastern equatorial Pacific; an in situ experiment

1982 ◽  
Vol 12 (4) ◽  
pp. 362-368 ◽  
Author(s):  
C. V. Metzler ◽  
C. R. Wenkam ◽  
W. H. Berger
Keyword(s):  
Equatorial Pacific ◽  
In Situ Experiment ◽  
Eastern Equatorial Pacific

scholarly journals Copper and zinc isotope systematics of altered oceanic crust at IODP Site 1256 in the eastern equatorial Pacific

2016 ◽  
Vol 121 (10) ◽  
pp. 7086-7100 ◽  
Author(s):  
Jian Huang ◽  
Sheng-Ao Liu ◽  
Yongjun Gao ◽  
Yilin Xiao ◽  
Sha Chen
Keyword(s):  
Oceanic Crust ◽  
Equatorial Pacific ◽  
Zinc Isotope ◽  
Copper And Zinc ◽  
Eastern Equatorial Pacific ◽  
Isotope Systematics

Atmospheric CO2 Record from In Situ Measurements at Amsterdam Island

1996 ◽  
Author(s):  
A. Guadry, ◽  
V. Kazan, ◽  
P. Monfray,
Keyword(s):  
In Situ Measurements ◽  
Atmospheric Co2
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