Variability in Salinity, Temperature and Dissolved Oxygen in Southwest Mobile Bay, Alabama (2007)

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
Dauphin Island Sea Lab: Park Lab
Publication_Date:
Unpublished material
Title:
Variability in Salinity, Temperature and Dissolved Oxygen in Southwest Mobile Bay, Alabama (2007)
Description:
Abstract:
From June-October, 2007, time series data were collected from three stationary moorings in Mobile Bay, Alabama. The three stations were at Denton Reef, a point 10.6 km north of Denton Reef, and a point 10.6 km south of Denton Reef. The data collected include conductivity, temperature, pressure, and dissolved oxygen (DO) at the bottom for each station, and mid-depth and surface for Denton Reef. Vertical profiles of conductivity, temperature, and DO were also obtained from 24 sampling sites in six east-west transects across the study area. From these measurements, other parameters were derived, including total depth, salinity, and saturation DO concentration.
Purpose:
The purpose of this project was to examine the temporal and spatial variability of salinity, temperature and DO in southwest Mobile Bay, Alabama, in order to better understand the processes affecting the presence of low DO conditions.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date:
20070622
Ending_Date:
20071003
Currentness_Reference:
ground condition
Status:
Progress:
Complete
Maintenance_and_Update_Frequency:
None Planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:
-88.126733
East_Bounding_Coordinate:
-88.015967
North_Bounding_Coordinate:
30.515433
South_Bounding_Coordinate:
30.323683
Keywords:
Theme:
Theme_Keyword_Thesaurus:
None
Theme_Keyword:
time-series data
Theme_Keyword:
continuous monitoring
Theme_Keyword:
physical
Theme_Keyword:
pressure
Theme_Keyword:
depth
Theme_Keyword:
conductivity
Theme_Keyword:
temperature
Theme_Keyword:
dissolved oxygen
Theme_Keyword:
DO
Theme_Keyword:
vertical profile
Theme_Keyword:
salinity
Theme_Keyword:
density
Theme_Keyword:
saturation DO concentration
Theme_Keyword:
surface
Theme_Keyword:
mid-depth
Theme_Keyword:
bottom
Theme_Keyword:
mooring
Theme_Keyword:
water quality
Theme:
Theme_Keyword_Thesaurus:
ISO 19115 Topic Category
Theme_Keyword:
inlandWaters
Theme_Keyword:
oceans
Place:
Place_Keyword_Thesaurus:
None
Place_Keyword:
Alabama
Place_Keyword:
Mobile Bay
Place_Keyword:
Dauphin Island Sea Lab
Place_Keyword:
DISL
Place_Keyword:
Denton Reef
Place_Keyword:
Whitehouse Reef
Access_Constraints:
Permission to access these data must be given by Dr. Kyeong Park.
Use_Constraints:
Acknowledgment of the DISL: Park Lab, the Alabama Oyster Reef Restoration Program, the National Marine Fisheries Service (NMFS), and the National Oceanic and Atmospheric Administration (NOAA) would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of these data. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection, and computer processes over time. The distributor shall not be liable for improper or incorrect use of these data, based on the description of appropriate/inappropriate uses described in the metadata document. These data are not legal documents and are not to be used as such.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person:
Kyeong Park
Contact_Organization:
DISL: Park Lab
Contact_Position:
Principal Investigator
Contact_Address:
Address_Type:
mailing and physical
Address:
Dauphin Island Sea Lab
Address:
101 Bienville Blvd.
City:
Dauphin Island
State_or_Province:
AL
Postal_Code:
36528
Country:
USA
Contact_Voice_Telephone:
251-861-2141 x7563
Contact_Electronic_Mail_Address:
kpark@disl.org
Hours_of_Service:
8-5:00 CST
Contact_Instructions:
Please email Dr. Kyeong Park for further information.
Browse_Graphic:
Browse_Graphic_File_Name:
http://www.ncddc.noaa.gov/approved_recs/org/disl/KPark/Graduate_work/JSenne/Denton_Reef_data_browse_2009SenneThesisFig1.pdf
Browse_Graphic_File_Description:
A map of Mobile Bay showing the North, South, and Denton Reef mooring stations, CTD casting stations, and auxiliary data stations (tidal forcing, air temperature, and wind data from outside sources used in the study).
Browse_Graphic_File_Type:
PDF
Data_Set_Credit:
Joseph Michael Senne
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Data_Quality_Information:
Logical_Consistency_Report:
not applicable
Completeness_Report:
Moored instruments to collect time-series data were cleaned, recalibrated, and given new batteries on a weekly basis. Servicing was handled so that the bottom instrument at Denton Reef had no data gaps. All other moored instruments have at least 13 days of data gaps.
Lineage:
Process_Step:
Process_Description:
Time-series conductivity, temperature, pressure, and optical DO were taken at 0.3 m above the bottom at three stations, and also 1.6 m (mid-depth, near the pycnocline) and 2.8 m (surface) at the Denton Reef station, from 20070622 to 20071003. Data are in 20 minute increments, with each value representing an average of continuous measurements over 5 minutes at a sampling frequency of 2 Hz.
Process_Date:
Unknown
Process_Step:
Process_Description:
Vertical profiles of conductivity, temperature, and DO were collected from 24 sampling sites in six east-west transects on 20070629, 20070705, 20070719, 20070814, 20070827, and 20070924, using an SBE25. Conductivity and temperature were collected on the downcast, and discrete DO data were collected at approximately 0.5 m intervals on the upcast. Vertical profiles were timed to collect all data during slack before ebb at each station.
Process_Date:
Unknown
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label:
2007 Mobile Bay Moored Data
Entity_Type_Definition:
Table of bottom, mid-depth, and surface data for dissolved oxygen, salinity, and temperature for three stations in southwest Mobile Bay. Data are in a tab-delimited text file named allysi.txt.
Entity_Type_Definition_Source:
Dauphin Island Sea Lab: Park Lab
Attribute:
Attribute_Label:
Date
Attribute_Definition:
Sampling date. Format is first three letters of the month name followed by day of month as two digits.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
Jun20
Range_Domain_Maximum:
Oct03
Attribute:
Attribute_Label:
Time Stamp
Attribute_Definition:
A decimal number representing the day of year, with a fraction of 86,400 seconds representing time of day. 0.0 is 00:00 on January 1.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
170.38133796296
Range_Domain_Maximum:
275.29824537037
Attribute:
Attribute_Label:
North DO
Attribute_Definition:
Dissolved oxygen concentration in mg/L at the bottom of the north station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
12
Attribute_Units_of_Measure:
milligram per liter
Attribute:
Attribute_Label:
North Sal
Attribute_Definition:
Salinity in PSU at the bottom of the north station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
14
Range_Domain_Maximum:
35
Attribute:
Attribute_Label:
North Temp
Attribute_Definition:
Temperature in Celsius at the bottom of the north station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
27
Range_Domain_Maximum:
35
Attribute_Units_of_Measure:
Celsius
Attribute:
Attribute_Label:
North Depth
Attribute_Definition:
Water depth in meters at the north station. Missing values are represented as -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
5
Attribute_Units_of_Measure:
meter
Attribute:
Attribute_Label:
Middle Surface DO
Attribute_Definition:
Dissolved oxygen concentration in mg/L at the surface of the Denton Reef station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
3
Range_Domain_Maximum:
12
Attribute_Units_of_Measure:
milligram per liter
Attribute:
Attribute_Label:
Middle Surface Sal
Attribute_Definition:
Salinity in PSU at the surface of the Denton Reef station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
14
Range_Domain_Maximum:
30
Attribute:
Attribute_Label:
Middle Surface Temp
Attribute_Definition:
Temperature in Celsius at the surface of the Denton Reef station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
25
Range_Domain_Maximum:
35
Attribute_Units_of_Measure:
Celsius
Attribute:
Attribute_Label:
Middle Surface Depth
Attribute_Definition:
Water depth in meters at the Denton Reef station. Missing values are represented as -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
5
Attribute_Units_of_Measure:
meter
Attribute:
Attribute_Label:
Middle Int DO
Attribute_Definition:
Dissolved oxygen concentration in mg/L at mid-depth of the Denton Reef station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
12
Attribute_Units_of_Measure:
milligram per liter
Attribute:
Attribute_Label:
Middle Int Sal
Attribute_Definition:
Salinity in PSU at mid-depth of the Denton Reef station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
15
Range_Domain_Maximum:
30
Attribute:
Attribute_Label:
Middle Int Temp
Attribute_Definition:
Temperature in Celsius at mid-depth of the Denton Reef station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
25
Range_Domain_Maximum:
35
Attribute_Units_of_Measure:
Celsius
Attribute:
Attribute_Label:
Middle Int Depth
Attribute_Definition:
A column of interim processing numbers that should be disregarded as filler.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
3
Attribute_Units_of_Measure:
meter
Attribute:
Attribute_Label:
Middle Bottom DO
Attribute_Definition:
Dissolved oxygen concentration in mg/L at the bottom of the Denton Reef station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
10
Attribute_Units_of_Measure:
milligram per liter
Attribute:
Attribute_Label:
Middle Bottom Sal
Attribute_Definition:
Salinity in PSU at the bottom of the Denton Reef station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
15
Range_Domain_Maximum:
30
Attribute:
Attribute_Label:
Middle Bottom Temp
Attribute_Definition:
Temperature in Celsius at the bottom of the Denton Reef station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
25
Range_Domain_Maximum:
35
Attribute_Units_of_Measure:
Celsius
Attribute:
Attribute_Label:
Middle Bottom Depth
Attribute_Definition:
A column of interim processing numbers that should be disregarded as filler.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
4
Attribute_Units_of_Measure:
meter
Attribute:
Attribute_Label:
South DO
Attribute_Definition:
Dissolved oxygen concentration in mg/L at the bottom of the south station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
12
Attribute_Units_of_Measure:
milligram per liter
Attribute:
Attribute_Label:
South Sal
Attribute_Definition:
Salinity in PSU at the bottom of the south station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
15
Range_Domain_Maximum:
35
Attribute:
Attribute_Label:
South Temp
Attribute_Definition:
Temperature in Celsius at the bottom of the south station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
25
Range_Domain_Maximum:
35
Attribute_Units_of_Measure:
Celsius
Attribute:
Attribute_Label:
South Depth
Attribute_Definition:
Water depth in meters at the south station. Missing values are represented as -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
4
Attribute_Units_of_Measure:
meter
Attribute:
Attribute_Label:
Middle Surface DO%
Attribute_Definition:
Percent saturation dissolved oxygen concentration at the surface of the Denton Reef station. Missing values are represented with -999.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
45
Range_Domain_Maximum:
160
Attribute_Units_of_Measure:
percent
Attribute:
Attribute_Label:
Date
Attribute_Definition:
Sampling date. Format is first three letters of the month name followed by day of month as two digits.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
Jun20
Range_Domain_Maximum:
Oct03
Detailed_Description:
Entity_Type:
Entity_Type_Label:
2007 Mobile Bay CTD Casting Survey Data
Entity_Type_Definition:
Series of 12 tables of salinity and dissolved oxygen data for six casting surveys done in southwest Mobile Bay in 2007 on June 29, July 5, July 19, August 14, August 27, and September 24. Each table is a separate tab-delimited text file. Files are named: August14oxygen.txt, August14salinity.txt, August27oxygen.txt, August27salinity.txt, July05oxygen.txt, July05salinity.txt, July19oxygen.txt, July19salinity.txt, June29oxygen.txt, June29salinity.txt, September24oxygen.txt, September24salinity.txt.
Entity_Type_Definition_Source:
Dauphin Island Sea Lab: Park Lab
Attribute:
Attribute_Label:
Lat
Attribute_Definition:
Latitude in minutes after 30 degrees.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
19
Range_Domain_Maximum:
31
Attribute_Units_of_Measure:
degree minutes
Attribute:
Attribute_Label:
Long
Attribute_Definition:
Longitude in minutes after 88 degrees.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0.9
Range_Domain_Maximum:
7.7
Attribute_Units_of_Measure:
degree minutes
Attribute:
Attribute_Label:
Time
Attribute_Definition:
Time of CTD cast in U.S. Central Standard Time.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0000
Range_Domain_Maximum:
2359
Attribute_Units_of_Measure:
HHMM
Attribute:
Attribute_Label:
Depth
Attribute_Definition:
Measure of depth in meters above the bottom.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-5
Range_Domain_Maximum:
0
Attribute_Units_of_Measure:
meter
Attribute:
Attribute_Label:
DO
Attribute_Definition:
Measure of dissolved oxygen concentration in mg/L.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
12
Attribute_Units_of_Measure:
milligram per liter
Attribute:
Attribute_Label:
Salinity
Attribute_Definition:
Measure of salinity in parts per thousand (ppt).
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
14
Range_Domain_Maximum:
35
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Metadata_Reference_Information:
Metadata_Date:
20140501
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Dauphin Island Sea Lab
Contact_Position:
Data Management Specialist
Contact_Address:
Address_Type:
mailing and physical
Address:
101 Bienville Blvd.
City:
Dauphin Island
State_or_Province:
Al
Postal_Code:
36528
Country:
USA
Contact_Voice_Telephone:
251-861-2141
Contact_Electronic_Mail_Address:
metadata@disl.org
Hours_of_Service:
8-5:00 CST
Contact_Instructions:
Please email the metadata specialist for further information.
Metadata_Standard_Name:
FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version:
FGDC-STD-001.1-1999
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