uid=MCM,o=EDI,dc=edirepository,dc=org
all
public
read
Lake Bonney Autonomous Lake Profiler and Samplers (ALPS): Conductivity, Temperature, and Pressure
Peter
Doran
pdoran@lsu.edu
https://www.lsu.edu/science/geology/people/faculty/doran.php
https://orcid.org/0000-0002-3774-2847
John
Priscu
jpriscu@montana.edu
https://orcid.org/0000-0001-5807-6364
Cristina
Takacs-Vesbach
cvesbach@unm.edu
http://www.vesbachlab.org
https://orcid.org/0000-0002-5535-2201
McMurdo Dry Valleys LTER
http://mcmlter.org/
Luke
Winslow
608-821-3914
lwinslow@usgs.gov
http://cida.usgs.gov/people/lwinslow.html
field crew
Heather
Buelow
University of New Mexico
Albuquerque
NM
87131
US
hnbuelow@gmail.com
https://scholar.google.com/citations?user=Ut_MuNcAAAAJ&hl=en
field crew
Jeff
Patriarche
334 Leon Johnson Hall
Bozeman
MT
59717
US
j.patriarche@gmail.com
field crew
Maciej
Obryk
Cascades Volcano Observatory
Vancouver
WA
98683
US
maciej.obryk@gmail.com
https://orcid.org/0000-0002-8182-8656
field crew
Inigo
San Gil
Department of Biology, MSC03 2020 University of New Mexico
Albuquerque
NM
87131
US
(505) 277-2625
(505) 277-2541
isangil@lternet.edu
data manager
2017-02-14
English
Knowledge of the McMurdo Dry Valley (MDV) lakes is limited by winter access, a period which is most relevant in understanding the habitability of other icy worlds and critical to understanding the overall function of these lakes. Owing to the lack of winter access, data that normally require human presence are incomplete. Our goal was to conduct the first year-round investigation of the biogeophysics of these unique lakes. An important part of the McMurdo Long Term Ecological Research (LTER) is evaluating carbon and nitrogen budgets in perennial ice-covered lakes. This data set addresses this core area of research and quantifies the vertical profile of conductivity, temperature, and pressure in Lake Bonney.
lake
limnology
temperature
Station Keywords
lakes
limnology
salinity
temperature
LTER Controlled Vocabulary
Data Policies
This data package is released under the Creative Commons Attribution 4.0 International License (CC BY 4.0; http://creativecommons.org/licenses/by/4.0/), which allows consumers (hereinafter referred to as “Data Users”) to freely reuse, redistribute, transform, or build on this work (even commercially) so long as appropriate credit is provided. Accordingly, Data Users are required to properly cite this data package in any publications or in the metadata of any derived products that result from its use (in whole or in part). A recommended citation is provided on the summary metadata page associated with this data package in the McMurdo Dry Valleys LTER Data Catalog (https://mcmlter.org/data), and a generic citation may be found on the summary metadata page in the repository where this data package was obtained. When these data contribute significantly to the contents of a publication, Data Users must also acknowledge that data were provided by the NSF-supported McMurdo Dry Valleys Long Term Ecological Research program (OPP-1637708). This data package has been released in the spirit of open scientific collaboration. Hence, Data Users are strongly encouraged to consider consultation, collaboration, and/or co-authorship (as appropriate) with the data package creator(s). Data Users should be aware these data may be actively used by others for ongoing research; thus, coordination may be necessary to prevent duplicate publication. Data Users should also recognize that misinterpretation of data may occur if they are used outside the context of the original study. Hence, Data Users are urged to contact the data package creator(s) if they have any questions regarding methodology or results. While substantial efforts are made to ensure the accuracy of this data package (with all its components), complete accuracy cannot be guaranteed. Periodic updates to this data package may occur, and it is the responsibility of Data Users to check for new versions. This data package is made available “as is” and comes with no warranty of accuracy or fitness for use. The creator(s) of this data package and the repository where these data were obtained shall not be liable for any damages resulting from misinterpretation, use, or misuse of these data. Finally, as a professional courtesy, we kindly request Data Users notify the primary contact referenced in the metadata when these data are used in the production of any derivative work or publication. Notification should include an explanation of how the data were used, along with a digital copy of the derived product(s). Thank you.
https://mcm.lternet.edu/content/lake-bonney-autonomous-lake-profiler-and-samplers-alps-conductivity-temperature-and-pressure
Lake Bonney is a saline lake with permanent ice cover at the western end of Taylor Valley in the McMurdo Dry Valleys of Victoria Land, Antarctica. It is 7 kilometres or 4.3 mi long and up to 900 metres or 3,000 ft wide. A narrow channel only 50 metres or 160 ft wide. Lake Bonney at Narrows separates the lake into East Lake Bonney 3.32 square kilometres or 1.28 sq mi and West Lake Bonney, 0.99 square kilometres or 0.38 sq mi. Valley: Taylor Distance to Sea : 28 Maximum Length (km): 2.6 Maximum Width (km): 0.9 Maximum Depth (m): 40 Surface Area (km^2): 0.99 Ice Thickness Average Surface (m): 2.8-4.5 Volume (m^3 * 10^6): 10.1
162.269104003906
162.354934692383
-77.714805603027
-77.727287292480
57
57
meter
Lake Bonney is a saline lake with permanent ice cover at the western end of Taylor Valley in the McMurdo Dry Valleys of Victoria Land, Antarctica. It is 7 kilometres or 4.3 mi long and up to 900 metres or 3,000 ft wide. A narrow channel only 50 metres or 160 ft wide. Lake Bonney at Narrows separates the lake into East Lake Bonney 3.32 square kilometres or 1.28 sq mi and West Lake Bonney, 0.99 square kilometres or 0.38 sq mi. The west lobe is flanked by Taylor glacier. Valley: Taylor Distance to Sea : 25 Maximum Length (km): 4.8 Maximum Width (km): 0.9 Maximum Depth (m): 37 Surface Area (km^2): 3.32 Ice Thickness Average Surface (m): 3 - 4.5 Volume (m^3 * 10^6): 54.7
162.353210449219
162.536209106445
-77.697700500488
-77.724441528320
57
57
meter
2013-12-01
2015-12-14
McMurdo Dry Valleys LTER
http://mcmlter.org/
McMurdo Dry Valleys LTER
http://mcmlter.org/
McMurdo Dry Valleys LTER
Through the ice, wire-walking profilers (McLane Labs Ice Tethered Profilers [ITPs]) were deployed in both lobs of Lake Bonney. Attached to the ITPs were sensors for conductivity, temperature, dissolved oxygen, and pressure (Seabird model 41CP CTD endcaps). The ITPs were programmed to profile once daily around regional solar noon. A profile consisted of one downward and one upward movement to the furthest reach of the profilers possible movement, or the bottom of the lake or bottom of the ice, whichever limit came first. During the profiles, conductivity, temperature, salinity and dissolved oxygen readings were recorded every 2 seconds. To convert the raw dissolved oxygen readings (recorded in sensor output units, hertz), manufacturer calibration coefficients and fit equations were used.
LIMNO_ALPS_ENDCAP
Details about the spreadsheet containing the Limnology ALPS endcap data, such as parameters definitions, units used, missing values and the likes.
ALPS_WLB_endcap.csv
14221568
1
\r\n
column
,
https://mcm.lternet.edu/sites/default/files/data/ALPS_WLB_endcap.csv
DATASET_CODE
DATASET_CODE
DATASET_CODE
string
DATASET_CODE
LOCATION_NAME
LOCATION_NAME
LOCATION_NAME
string
LOCATION_NAME
LOCATION CODE
LOCATION CODE
LOCATION CODE, in this case, it is Bonw20
string
LOCATION CODE, in this case, it is Bonw20
DATE_TIME
DATE_TIME
Date and time when this data point was collected
date
MM/DD/YYYY HH24:Mi:ss
CONDUCTIVITY
CONDUCTIVITY
Conductivity of water at specific depth
mmho/cm
1
real
4
900
TEMPERATURE
TEMPERATURE
Water Temperature at specific depth
celsius
0.0001
real
PRESSURE
PRESSURE
Pressure readings for current location of sensors
decibar
0.01
real
0
45
DISSOLVED OXYGEN
DISSOLVED OXYGEN
Dissolved Oxygen Concentration at specific depth
milligramsPerLiter
.01
real
0
17
NA
Out of range
LIMNO_ALPS_ENDCAP_ELB
Details about the spreadsheet containing the Limnology ALPS endcap data at East Bonney, such as parameters definitions, units used, missing values and the likes.
ALPS_ELB_endcap.csv
18674746
1
\r\n
column
,
https://mcm.lternet.edu/sites/default/files/data/ALPS_ELB_endcap.csv
DATASET_CODE
DATASET_CODE
DATASET_CODE
string
DATASET_CODE
LOCATION_NAME
LOCATION_NAME
LOCATION_NAME
string
LOCATION_NAME
LOCATION CODE
LOCATION CODE
LOCATION CODE, in this case, it is Bonw20
string
LOCATION CODE, in this case, it is Bonw20
DATE_TIME
DATE_TIME
Date and time when this data point was collected
date
MM/DD/YYYY HH24:Mi:ss
CONDUCTIVITY
CONDUCTIVITY
Conductivity of water at specific depth
mmho/cm
1
real
4
900
TEMPERATURE
TEMPERATURE
Water Temperature at specific depth
celsius
0.0001
real
PRESSURE
PRESSURE
Pressure readings for current location of sensors
decibar
0.01
real
0
45
DISSOLVED OXYGEN
DISSOLVED OXYGEN
Dissolved Oxygen Concentration at specific depth
milligramsPerLiter
.01
real
0
17
NA
Out of range
pressure