Temporal variability in summertime bottom hypoxia in shallow areas of Mobile Bay, Alabama (2004)

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
DISL: Park Lab
Publication_Date:
2007
Title:
Temporal variability in summertime bottom hypoxia in shallow areas of Mobile Bay, Alabama (2004)
Other_Citation_Details:
Park, K., C.-K. Kim, and W.W. Schroeder. 2007. "Temporal variability in summertime bottom hypoxia in shallow areas of Mobile Bay, Alabama." Estuaries and Coasts, 30(1), 54-65.
Description:
Abstract:
From July-September, 2004, time series data were collected from a stationary mooring located off the coast of Fairhope, Alabama. The data collected include pressure, conductivity, temperature, and current velocity at surface and bottom, and dissolved oxygen (DO) at bottom. Vertical profiles of pressure, conductivity, and temperature were also obtained weekly, along with surface and bottom water samples for chlorophyll and species of carbon, nitrogen, and phosphorus. From these measurements, other parameters were derived. They include water depth, salinity, density, and saturation DO concentration.
Purpose:
The purpose of this project was to collect time-series data measuring the physical parameters and DO in shallow areas of Mobile Bay, Alabama.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date:
20040701
Ending_Date:
20040924
Currentness_Reference:
ground condition
Status:
Progress:
Complete
Maintenance_and_Update_Frequency:
None Planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:
-87.9559
East_Bounding_Coordinate:
-87.9559
North_Bounding_Coordinate:
30.5471
South_Bounding_Coordinate:
30.5471
Keywords:
Theme:
Theme_Keyword_Thesaurus:
None
Theme_Keyword:
time-series data
Theme_Keyword:
physical
Theme_Keyword:
pressure
Theme_Keyword:
depth
Theme_Keyword:
conductivity
Theme_Keyword:
temp
Theme_Keyword:
temperature
Theme_Keyword:
dissolved oxygen
Theme_Keyword:
DO
Theme_Keyword:
current
Theme_Keyword:
current velocity
Theme_Keyword:
vertical profile
Theme_Keyword:
salinity
Theme_Keyword:
density
Theme_Keyword:
saturation DO concentration
Theme_Keyword:
surface
Theme_Keyword:
bottom
Theme_Keyword:
mooring
Theme:
Theme_Keyword_Thesaurus:
ISO Topic Category Code
Theme_Keyword:
environment
Theme_Keyword:
007
Theme_Keyword:
inlandWaters
Theme_Keyword:
012
Theme_Keyword:
oceans
Theme_Keyword:
014
Place:
Place_Keyword_Thesaurus:
None
Place_Keyword:
Fairhope
Place_Keyword:
Alabama
Place_Keyword:
Mobile Bay
Place_Keyword:
Dauphin Island Sea Lab
Place_Keyword:
DISL
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:
101 Bienville Blvd.
City:
Dauphin Island
State_or_Province:
Al
Postal_Code:
36528
Country:
USA
Contact_Voice_Telephone:
251-861-2141 ext. 7563
Contact_Electronic_Mail_Address:
kpark@disl.org
Hours_of_Service:
8-5:00 CST
Contact_Instructions:
Please email Dr. Kyeong Park for further information.
Native_Data_Set_Environment:
Data are in space-delimited ASCII text files.
Back To Index
Data_Quality_Information:
Logical_Consistency_Report:
not applicable
Completeness_Report:
Weekly sampling events occurred from 20040701 to 20040924. No substantial lapses in data collection exist.
Lineage:
Process_Step:
Process_Description:
Time-series pressure, conductivity, and temperature taken at surface and bottom depths were collected in 20 minute increments, with each value representing an average over 5 minutes with a sampling frequency of 2 Hz. Time-series dissolved oxygen measurements from the bottom were taken in 20 minute increments, with each value representing a reading after 150 seconds of warm-up. Time-series measurements of the vertical profile of current velocity were taken every 20 minutes, with each value representing an average over 5 minutes with a sampling frequency of 1 Hz and a bin size of 0.1 m. Between 20040701 and 20040924, 11 maintenance surveys were done using SBE25, which collected vertical profiles of pressure, conductivity, and temperature, and surface and bottom water samples.
Process_Date:
Unknown
Cloud_Cover:
Unknown
Back To Index
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label:
YSI
Entity_Type_Definition:
Data table containing time-series salinity, temperature, density, and DO data for surface and bottom from July to September, 2004 near Fairhope in Mobile Bay, AL.
Entity_Type_Definition_Source:
DISL: Park Lab
Attribute:
Attribute_Label:
d(CST)
Attribute_Definition:
Day in U.S. Central Standard Time. Day 0.0000000 is 00:00 July 1, 2004.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
85.5850694
Attribute_Units_of_Measure:
Each integer is one full day. Decimals represent fraction of a day. Examples: 0.00 is 00:00 on July 1, 2004; 0.50 is 12:00 on July 1, 2004; 1.00 is 00:00 on July 2, 2004.
Attribute:
Attribute_Label:
h_S(m)
Attribute_Definition:
Depth below water surface for measurements taken by the surface instrument. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
6
Attribute_Units_of_Measure:
meter
Attribute:
Attribute_Label:
S_S
Attribute_Definition:
Salinity at the surface, measured in PSU. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
30
Attribute_Units_of_Measure:
PSU
Attribute:
Attribute_Label:
T_S
Attribute_Definition:
Temperature at the surface, measured in Celsius. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
20
Range_Domain_Maximum:
35
Attribute_Units_of_Measure:
Celsius
Attribute:
Attribute_Label:
d_S
Attribute_Definition:
Water density at the surface, presented as sigma-t. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-5
Range_Domain_Maximum:
20
Attribute_Units_of_Measure:
sigma-t
Attribute:
Attribute_Label:
Osat_S
Attribute_Definition:
Saturation oxygen concentration at the surface. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
10
Attribute_Units_of_Measure:
mg/l
Attribute:
Attribute_Label:
h_B(m)
Attribute_Definition:
Total depth. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
6
Attribute_Units_of_Measure:
meter
Attribute:
Attribute_Label:
S_B
Attribute_Definition:
Salinity at the bottom, measured in PSU. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
30
Attribute_Units_of_Measure:
PSU
Attribute:
Attribute_Label:
T_B
Attribute_Definition:
Temperature at the bottom, measured in Celsius. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
20
Range_Domain_Maximum:
35
Attribute_Units_of_Measure:
Celsius
Attribute:
Attribute_Label:
d_B
Attribute_Definition:
Water density at the bottom, presented as sigma-t. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-5
Range_Domain_Maximum:
20
Attribute_Units_of_Measure:
sigma-t
Attribute:
Attribute_Label:
DO_B
Attribute_Definition:
Dissolved oxygen concentration at the bottom. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
10
Attribute_Units_of_Measure:
mg/l
Attribute:
Attribute_Label:
Osat_B
Attribute_Definition:
Saturation oxygen concentration at the bottom. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
10
Attribute_Units_of_Measure:
mg/l
Attribute:
Attribute_Label:
del_sal
Attribute_Definition:
Delta Salinity. Difference in salinity between the surface and bottom, obtained from subtracting surface salinity (S_S) from bottom salinity (S_B). Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-5
Range_Domain_Maximum:
20
Attribute_Units_of_Measure:
PSU
Attribute:
Attribute_Label:
del_den
Attribute_Definition:
Delta Density. Difference in density between the surface and bottom, obtained by subtracting surface density (d_S) from bottom density (d_B). Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-2
Range_Domain_Maximum:
20
Attribute_Units_of_Measure:
sigma-t
Attribute:
Attribute_Label:
m
Attribute_Definition:
Month
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
7
Range_Domain_Maximum:
9
Attribute_Units_of_Measure:
7 is July, 8 is August, 9 is September.
Attribute:
Attribute_Label:
d
Attribute_Definition:
Day of month.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
1
Range_Domain_Maximum:
31
Attribute_Units_of_Measure:
day
Attribute:
Attribute_Label:
h
Attribute_Definition:
Hour
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-1
Range_Domain_Maximum:
22
Attribute_Units_of_Measure:
Hour of the day. 0 is midnight, 22 is 10pm, -1 is 11pm. All times are in U.S. Central Standard Time.
Attribute:
Attribute_Label:
mn
Attribute_Definition:
Minute
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
2.5
Range_Domain_Maximum:
42.5
Attribute_Units_of_Measure:
Minutes past the hour. Measurements were taken at 20 minute intervals, so the possible values are 2.5, 22.5, and 42.5.
Attribute:
Attribute_Label:
dz_den
Attribute_Definition:
A column of interim processing numbers that should be disregarded as filler.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Unrepresentable_Domain:
These numbers should be disregarded.
Detailed_Description:
Entity_Type:
Entity_Type_Label:
ADCP
Entity_Type_Definition:
Data table containing current velocity data for surface and bottom from July to September, 2004 near Fairhope in Mobile Bay, AL.
Entity_Type_Definition_Source:
DISL: Park Lab
Attribute:
Attribute_Label:
d(CST)
Attribute_Definition:
Day in U.S. Central Standard Time. Day 0.0000000 is 00:00 July 1, 2004.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
85.5850694
Attribute_Units_of_Measure:
Each integer is one full day. Decimals represent fraction of a day. Examples: 0.00 is 00:00 on July 1, 2004; 0.50 is 12:00 on July 1, 2004; 1.00 is 00:00 on July 2, 2004.
Attribute:
Attribute_Label:
u_S
Attribute_Definition:
The u component of current velocity near the surface. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-70
Range_Domain_Maximum:
70
Attribute_Units_of_Measure:
cm/s
Attribute:
Attribute_Label:
v_S
Attribute_Definition:
The v component of current velocity near the surface. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-70
Range_Domain_Maximum:
70
Attribute_Units_of_Measure:
cm/s
Attribute:
Attribute_Label:
spd_S
Attribute_Definition:
Current speed near the surface. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
70
Attribute_Units_of_Measure:
cm/s
Attribute:
Attribute_Label:
dir_S
Attribute_Definition:
Current direction near the surface. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
360
Attribute_Units_of_Measure:
degrees
Attribute:
Attribute_Label:
dep_S
Attribute_Definition:
Height of measurement point above bottom for the surface measurements. Values of 999.9 represent missing data.
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:
u_B
Attribute_Definition:
The u component of current velocity near the bottom. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-70
Range_Domain_Maximum:
70
Attribute_Units_of_Measure:
cm/s
Attribute:
Attribute_Label:
v_B
Attribute_Definition:
The v component of current velocity near the bottom. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-70
Range_Domain_Maximum:
70
Attribute_Units_of_Measure:
cm/s
Attribute:
Attribute_Label:
spd_B
Attribute_Definition:
Current speed near the bottom. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
70
Attribute_Units_of_Measure:
cm/s
Attribute:
Attribute_Label:
dir_B
Attribute_Definition:
Current direction near the bottom. Values of 999.9 represent missing data.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
360
Attribute_Units_of_Measure:
degrees
Attribute:
Attribute_Label:
dep_B
Attribute_Definition:
Height of measurement point above bottom for the bottom measurements. Values of 999.9 represent missing data.
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:
m
Attribute_Definition:
Month
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
7
Range_Domain_Maximum:
9
Attribute_Units_of_Measure:
7 is July, 8 is August, 9 is September.
Attribute:
Attribute_Label:
d
Attribute_Definition:
Day of month.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
1
Range_Domain_Maximum:
31
Attribute_Units_of_Measure:
day
Attribute:
Attribute_Label:
h
Attribute_Definition:
Hour
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-1
Range_Domain_Maximum:
22
Attribute_Units_of_Measure:
Hour of the day. 0 is midnight, 22 is 10pm, -1 is 11pm. All times are in U.S. Central Standard Time.
Attribute:
Attribute_Label:
mn
Attribute_Definition:
Minute
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
2.5
Range_Domain_Maximum:
42.5
Attribute_Units_of_Measure:
Minutes past the hour. Measurements were taken at 20 minute intervals, so the possible values are 2.5, 22.5, and 42.5.
Detailed_Description:
Entity_Type:
Entity_Type_Label:
CTD Profiles
Entity_Type_Definition:
A set of 11 data tables of salinity, temperature, and density in vertical profiles done on 20040701, 20040706, 20040714, 20040721, 20040728, 20040805, 20040811, 20040818, 20040824, 20040831, and 20040908, near Fairhope in Mobile Bay, AL.
Entity_Type_Definition_Source:
DISL: Park Lab
Attribute:
Attribute_Label:
i
Attribute_Definition:
Line number.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
1
Range_Domain_Maximum:
40
Attribute:
Attribute_Label:
d(m)
Attribute_Definition:
Depth below water surface in meters. Data have been bin-averaged into 0.1 m intervals.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0.1
Range_Domain_Maximum:
5
Attribute_Units_of_Measure:
meter
Attribute:
Attribute_Label:
S(psu)
Attribute_Definition:
Salinity measured in PSU.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
0
Range_Domain_Maximum:
30
Attribute_Units_of_Measure:
PSU
Attribute:
Attribute_Label:
T(C)
Attribute_Definition:
Temperature measured in Celsius.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
20
Range_Domain_Maximum:
35
Attribute_Units_of_Measure:
Celsius
Attribute:
Attribute_Label:
sigma-t
Attribute_Definition:
Water density, presented as sigma-t.
Attribute_Definition_Source:
DISL: Park Lab
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum:
-2
Range_Domain_Maximum:
20
Attribute_Units_of_Measure:
sigma-t
Overview_Description:
Entity_and_Attribute_Overview:
Space-delimited ASCII text files containing time-series physical data collected from the shallow waters off the coast of Fairhope, Alabama from July-September, 2007.
Entity_and_Attribute_Detail_Citation:
Attributes that include collected data are: 1) the time-series of pressure at surface and bottom 2) the times-series of the salinity at surface and bottom 3) the time-series of temperature at surface and bottom 4) the time-series of the dissolved oxygen (DO) at bottom 5) the time-series of current velocity at surface and bottom 6) vertical profile of salinity 7) vertical profile of temperature and 8) vertical profile of density.
Back To Index
Distribution_Information:
Distributor:
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:
101 Bienville Blvd.
City:
Dauphin Island
State_or_Province:
Al
Postal_Code:
36528
Country:
USA
Contact_Voice_Telephone:
251-861-2141 ext. 7563
Contact_Electronic_Mail_Address:
kpark@disl.org
Hours_of_Service:
8-5:00 CST
Contact_Instructions:
Please email Dr. Kyeong Park for further information.
Resource_Description:
Fairhope, Alabama 2004
Distribution_Liability:
The Dauphin Island Sea Lab's Park Lab makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. The Park Lab cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
Back To Index
Metadata_Reference_Information:
Metadata_Date:
20090104
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Dauphin Island Sea Lab
Contact_Person:
Data Management Specialist
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-001-1998
Metadata_Access_Constraints:
none
Metadata_Use_Constraints:
none
Back To Index