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USGS Coastal and Marine Geology Program

The Massachusetts Bay Internal Wave Experiment, August 1998: Data Report

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Hydrographic Data

The hydrographic data were averaged to 1 m intervals and cross-bay sections created for temperature, salinity, sigma-t and beam attenuation (see below). To create these sections, data were padded into the sea floor to the depth of the adjacent (deeper) station prior to contouring, and contours blanked out within 2 m of the sea floor. The hydrographic sections are referenced to low water at Site B determined from the pressure observations (tide times). The data in the temperature, salinity, beam attenuation, and sigma-t profiles are averaged over 2 m vertically; data in the Brunt-Vaisaila profiles are averaged over 4 m vertically.

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Location of hydrographic sections
Temperature sections
Salinity sections
Beam attenuation sections
Sigma theta sections
Brunt-Vaisala Frequency Sections

The
following
figure is
in PDF
format.

Figure 7, target location for CTD.
Figure 7.


Maps Showing Locations of Hydrographic Cruises

Table of target locations for 14 hydrographic stations (table 5)
Map of hydrographic station target locations (fig. 5)

Ship/Section Date Time After
Low Water
Casts in
Section
C. Andrew
(Cruise 1)
06-Aug-1998 15:28 7 hours, 4 minutes (ca01)
01-14
C. Andrew
(Cruise 2)
20-Aug-1998 15:34 6 hours, 57 minutes (ca02)
01-14
Argo Maine
(Section 1)
31-Aug-1998 06:08 1 hour, 48 minutes (amaine)
01-09
Argo Maine
(Section 2)
31-Aug-1998 15:06 10 hours, 46 minutes (amaine)
10-18
Argo Maine
(Section 3)
31-Aug-1998 18:49 2 hours, 15 minutes (amaine)
19-27
Argo Maine
(Section 4)
01-Sep-1998 04:20 11 hours, 46 minutes (amaine)
28-41
Argo Maine
(Section 5)
02-Sep-1998 03:41 10 hours, 17 minutes (amaine)
45-47; 49-52
Argo Maine
(Section 6)
02-Sep-1998 06:02 12 hours, 38 minutes (amaine)
53-54
Argo Maine
(Section 7)
02-Sep-1998 06:47 37 minutes (amaine)
55-61
Argo Maine
(Section 8)
02-Sep-1998 13:06 6 hours, 56 minutes (amaine)
63-67

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Plots of Temperature

Christopher Andrew (Cruise 1) Contours Colored Profiles
Christopher Andrew (Cruise 2) Contours Colored Profiles
Argo Maine (Section 1) Contours Colored Profiles
Argo Maine (Section 2) Contours Colored Profiles
Argo Maine (Section 3) Contours Colored Profiles
Argo Maine (Section 4) Contours Colored Profiles
Argo Maine (Section 5) Contours Colored Profiles
Argo Maine (Section 6) Contours Colored Profiles
Argo Maine (Section 7) Contours Colored Profiles
Argo Maine (Section 8) Contours Colored Profiles

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Plots of Salinity

Christopher Andrew (Cruise 1) Contours Colored Profiles
Christopher Andrew (Cruise 2) Contours Colored Profiles
Argo Maine (Section 1) Contours Colored Profiles
Argo Maine (Section 2) Contours Colored Profiles
Argo Maine (Section 3) Contours Colored Profiles
Argo Maine (Section 4) Contours Colored Profiles
Argo Maine (Section 5) Contours Colored Profiles
Argo Maine (Section 6) Contours Colored Profiles
Argo Maine (Section 7) Contours Colored Profiles
Argo Maine (Section 8) Contours Colored Profiles

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Plots of Beam Attenuation

Christopher Andrew (Cruise 1) (no data)  
Christopher Andrew (Cruise 2) (no data)  
Argo Maine (Section 1) Contours Colored Profiles
Argo Maine (Section 2) Contours Colored Profiles
Argo Maine (Section 3) Contours Colored Profiles
Argo Maine (Section 4) Contours Colored Profiles
Argo Maine (Section 5) Contours Colored Profiles
Argo Maine (Section 6) Contours Colored Profiles
Argo Maine (Section 7) Contours Colored Profiles
Argo Maine (Section 8) Contours Colored Profiles

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Plots of Sigma Theta

Christopher Andrew (Cruise 1) Contours Colored Profiles
Christopher Andrew (Cruise 2) Contours Colored Profiles
Argo Maine (Section 1) Contours Colored Profiles
Argo Maine (Section 2) Contours Colored Profiles
Argo Maine (Section 3) Contours Colored Profiles
Argo Maine (Section 4) Contours Colored Profiles
Argo Maine (Section 5) Contours Colored Profiles
Argo Maine (Section 6) Contours Colored Profiles
Argo Maine (Section 7) Contours Colored Profiles
Argo Maine (Section 8) Contours Colored Profiles

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Plots of Brunt-Vaisala Frequency

Christopher Andrew (Cruise 1)   Colored Profiles
Christopher Andrew (Cruise 2)   Colored Profiles
Argo Maine (Section 1)   Colored Profiles
Argo Maine (Section 2)   Colored Profiles
Argo Maine (Section 3)   Colored Profiles
Argo Maine (Section 4)   Colored Profiles
Argo Maine (Section 5)   Colored Profiles
Argo Maine (Section 6)   Colored Profiles
Argo Maine (Section 7)   Colored Profiles
Argo Maine (Section 8)   Colored Profiles

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