http://lod.bco-dmo.org/id/dataset/674819
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2017-01-13
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Dates of sea ice movement and sea ice distance in McMurdo Sound, Antarctica from MODIS and SSMI imagery between 1978-2015
2020-02-20
publication
2020-02-20
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2017-07-07
publication
https://doi.org/10.1575/1912/bco-dmo.708227
Stacy Kim
Moss Landing Marine Laboratories
principalInvestigator
David G. Ainley
H.T. Harvey & Associates
principalInvestigator
Grant Ballard
Point Blue Conservation Science
principalInvestigator
Kendra L. Daly
University of South Florida
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Kim, S., Ainley, D., Ballard, G., Daly, K. (2020) Dates of sea ice movement and sea ice distance in McMurdo Sound, Antarctica from MODIS and SSMI imagery between 1978-2015. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2) Version Date 2020-02-20 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.674819.2 [access date]
Dates of sea ice movement in McMurdo Sound, Antarctica from MODIS and SSMI imagery Dataset Description: <p>This dataset contains dates relevant to sea ice movement including dates of initial ice retreat, final ice retreat, ice minimum, general ice minimum, ice minimum for the west of McMurdo Sound, ice minimum for the east of McMurdo Sound, and refreeze start.&nbsp; It also includes the minimum distance to the ice edge from McMurdo Station. &nbsp;</p>
<p>Dates were derived from Moderate-resolution Imaging Spectroradiometers (MODIS) collected between 2003 and 2015 and Scanning Multichannel Microwave Radiometer and Special Sensor Microwave Imager-family passive microwave sensors (SSM/I) imagery collected between 1978 and 2015.</p> Methods and Sampling: <p><strong>MODIS:</strong></p>
<p>Dates of fast ice movement were determined from visible-wavelength scenes from the MODIS&nbsp;aboard the Aqua and Terra satellites.&nbsp; MODIS images are available only for the months when there is sunlight, generally October to April, and image resolution was 250 m.&nbsp; Figure A (see Supplemental Documents) shows the division of McMurdo Sound into six zones; fast ice areas were generated manually from clear-sky images by drawing polygons in GIS software, and pack ice was excluded from analysis. The fast ice in MODIS scenes was sometimes obscured by clouds, so for days with missing imagery we interpolated linearly between valid data.&nbsp; Areas of persistent multiyear ice or glaciers that were not considered in the analysis (white in the figure).&nbsp; Linear distance between McMurdo Station and the nearest open water on the day the ice reached the minimum extent for the season was also measured.</p>
<p><strong>SSMI:</strong></p>
<p>In the SSM/I record, images were available for all months of the year, and image resolution was 25 km.&nbsp; Figure B &nbsp;(see Supplemental Documents)&nbsp; shows the total of seven pixels in the 25 km polar stereographic projection that encompassed McMurdo Sound; for each pixel, daily or bi-daily fractional sea ice cover was extracted.&nbsp; SSM/I passive microwave sea ice observations do not distinguish between fast ice and pack ice. There are small amounts of land and ice shelf contamination in pixels 1, 2, 5 and 7.</p>
Funding provided by NSF Division of Polar Programs (NSF PLR) Award Number: PLR-0944747 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0944747
Funding provided by NSF Division of Polar Programs (NSF PLR) Award Number: PLR-0944511 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0944511
Funding provided by NSF Division of Polar Programs (NSF PLR) Award Number: PLR-0944694 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0944694
completed
Stacy Kim
Moss Landing Marine Laboratories
831-345-0361
8272 Moss Landing Rd.
Moss Landing
CA
95039
USA
skim@mlml.calstate.edu
pointOfContact
David G. Ainley
H.T. Harvey & Associates
USA
dainley@harveyecology.com
pointOfContact
Grant Ballard
Point Blue Conservation Science
707-781-2555 ext. 340
3820 Cypress Drive #11
Petaluma
CA
94954
USA
gballard@pointblue.org
pointOfContact
Kendra L. Daly
University of South Florida
727 553 1041
140 Seventh Ave., South
St. Petersburg
FL
33701
USA
kdaly@marine.usf.edu
pointOfContact
asNeeded
Dataset Version: 2
Unknown
lat_approx
lon_approx
image_source
austral_year
retreat_initial_year
retreat_initial_month
retreat_initial_day
retreat_final_year
retreat_final_month
retreat_final_day
ice_min_year
ice_min_month
ice_min_day
edge_dist_min
ice_min_west_year
ice_min_west_month
ice_min_west_day
ice_min_east_year
ice_min_east_month
ice_min_east_day
refreeze_begin_year
refreeze_begin_month
refreeze_begin_day
Scanning Multichannel Microwave Radiometer
MODIS
SSM/I
theme
None, User defined
latitude
longitude
sample description
year
month of year
day of month
measure of ice extent
featureType
BCO-DMO Standard Parameters
Radiometer
Radiometer
Special Sensor Microwave Imager
instrument
BCO-DMO Standard Instruments
TERRA_McMurdo_observations
AQUA_McMurdo_observations
service
Deployment Activity
McMurdo Sound, Antarctica
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Food web dynamics in an intact ecosystem: the role of top predators in McMurdo Sound
https://scini-penguin.mlml.calstate.edu/pauls-wordpress-test-site/
Food web dynamics in an intact ecosystem: the role of top predators in McMurdo Sound
<p><em>Extracted from the NSF award abstract:</em></p>
<p>The research project investigates the importance of top down forcing on pelagic food webs. The relatively pristine Ross Sea includes large populations of upper-level predators such as minke and killer whales, Adélie and Emperor penguins, and Antarctic toothfish. This project focuses on food web interactions of Adélie penguins, minke whales, and the fish-eating Ross Sea killer whales, all of which exert foraging pressure on their main prey, crystal krill (<em>Euphausia cyrstallorophias</em>) and silver fish (<em>Pleuragramma antarcticum</em>) in McMurdo Sound.</p>
<p>The investigators used a video- and acoustic-capable ROV, and standard biological and environmental sensors to quantify the abundance and distribution of phytoplankton, sea ice biota, prey, and relevant habitat data. The sampling area included 37 stations across an 30 x 15 km section of McMurdo Sound, stratified by distance from the ice edge as a proxy for air-breathing predator access. This study will be among the first to assess top-down forcing in the Ross Sea ecosystem and will form the basis for multidisciplinary studies in the future.</p>
<p><strong>Map sampling stations</strong></p>
<p><img alt="MODISS Map" src="https://datadocs.bco-dmo.org/d2/McMurdo_Predator_Prey/MODISSSMI.jpg" style="height:415px; width:600px" /></p>
McMurdo Predator Prey
largerWorkCitation
project
eng; USA
oceans
McMurdo Sound, Antarctica
163
166
-78.5
-76
1978-01-01
2015-01-01
McMurdo Sound, Antarctica
0
BCO-DMO catalogue of parameters from Dates of sea ice movement and sea ice distance in McMurdo Sound, Antarctica from MODIS and SSMI imagery between 1978-2015
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/679651.rdf
Name: lat_approx
Units: decimal degrees
Description: <p>Approximate latitude of sampling near McMurdo Station; Antarctica; south is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/679652.rdf
Name: lon_approx
Units: decimal degrees
Description: <p>Approximate longitude of sampling near McMurdo Station; Antarctica; west is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/679653.rdf
Name: image_source
Units: unitless
Description: <p>Image source (MODIS or SSM/I)</p>
http://lod.bco-dmo.org/id/dataset-parameter/679654.rdf
Name: austral_year
Units: unitless
Description: <p>Austral Year (start year/end year) in format yyyy/yy</p>
http://lod.bco-dmo.org/id/dataset-parameter/679655.rdf
Name: retreat_initial_year
Units: unitless
Description: <p>Year of initial ice retreat</p>
http://lod.bco-dmo.org/id/dataset-parameter/679656.rdf
Name: retreat_initial_month
Units: unitless
Description: <p>Month of initial ice retreat</p>
http://lod.bco-dmo.org/id/dataset-parameter/679657.rdf
Name: retreat_initial_day
Units: unitless
Description: <p>Day of initial ice retreat</p>
http://lod.bco-dmo.org/id/dataset-parameter/679658.rdf
Name: retreat_final_year
Units: unitless
Description: <p>Year of final ice retreat</p>
http://lod.bco-dmo.org/id/dataset-parameter/679659.rdf
Name: retreat_final_month
Units: unitless
Description: <p>Month of final ice retreat</p>
http://lod.bco-dmo.org/id/dataset-parameter/679660.rdf
Name: retreat_final_day
Units: unitless
Description: <p>Day of final ice retreat</p>
http://lod.bco-dmo.org/id/dataset-parameter/679661.rdf
Name: ice_min_year
Units: unitless
Description: <p>Year ice reached minimum in McMurdo Sound</p>
http://lod.bco-dmo.org/id/dataset-parameter/679662.rdf
Name: ice_min_month
Units: unitless
Description: <p>Month ice reached minimum in McMurdo Sound</p>
http://lod.bco-dmo.org/id/dataset-parameter/679663.rdf
Name: ice_min_day
Units: unitless
Description: <p>Day ice reached minimum in McMurdo Sound</p>
http://lod.bco-dmo.org/id/dataset-parameter/679664.rdf
Name: edge_dist_min
Units: kilometers
Description: <p>Linear distance between McMurdo Station and the nearest open water on the day the ice reached the minimum extent for the season.</p>
http://lod.bco-dmo.org/id/dataset-parameter/679665.rdf
Name: ice_min_west_year
Units: unitless
Description: <p>Year ice reached minimum on west side of McMurdo Sound</p>
http://lod.bco-dmo.org/id/dataset-parameter/679666.rdf
Name: ice_min_west_month
Units: unitless
Description: <p>Month ice reached minimum on west side of McMurdo Sound</p>
http://lod.bco-dmo.org/id/dataset-parameter/679667.rdf
Name: ice_min_west_day
Units: unitless
Description: <p>Day ice reached minimum on west side of McMurdo Sound</p>
http://lod.bco-dmo.org/id/dataset-parameter/679668.rdf
Name: ice_min_east_year
Units: unitless
Description: <p>Year ice reached minimum on east side of McMurdo Sound</p>
http://lod.bco-dmo.org/id/dataset-parameter/679669.rdf
Name: ice_min_east_month
Units: unitless
Description: <p>Month ice reached minimum on east side of McMurdo Sound</p>
http://lod.bco-dmo.org/id/dataset-parameter/679670.rdf
Name: ice_min_east_day
Units: unitless
Description: <p>Day ice reached minimum on east side of McMurdo Sound</p>
http://lod.bco-dmo.org/id/dataset-parameter/679671.rdf
Name: refreeze_begin_year
Units: unitless
Description: <p>Year ice began to refreeze</p>
http://lod.bco-dmo.org/id/dataset-parameter/679672.rdf
Name: refreeze_begin_month
Units: unitless
Description: <p>Month ice began to refreeze</p>
http://lod.bco-dmo.org/id/dataset-parameter/679673.rdf
Name: refreeze_begin_day
Units: unitless
Description: <p>Day ice began to refreeze</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
5393
https://darchive.mblwhoilibrary.org/bitstream/1912/25406/1/dataset-674819_mcmurdo-sound-sea-ice-movement-dates__v2.tsv
download
5516
https://darchive.mblwhoilibrary.org/bitstream/1912/9081/1/data_mcmurdo-sound-sea-ice-movement-dates.tsv
download
https://doi.org/10.1575/1912/bco-dmo.708227
download
onLine
dataset
<p><strong>MODIS:</strong></p>
<p>Dates of fast ice movement were determined from visible-wavelength scenes from the MODIS&nbsp;aboard the Aqua and Terra satellites.&nbsp; MODIS images are available only for the months when there is sunlight, generally October to April, and image resolution was 250 m.&nbsp; Figure A (see Supplemental Documents) shows the division of McMurdo Sound into six zones; fast ice areas were generated manually from clear-sky images by drawing polygons in GIS software, and pack ice was excluded from analysis. The fast ice in MODIS scenes was sometimes obscured by clouds, so for days with missing imagery we interpolated linearly between valid data.&nbsp; Areas of persistent multiyear ice or glaciers that were not considered in the analysis (white in the figure).&nbsp; Linear distance between McMurdo Station and the nearest open water on the day the ice reached the minimum extent for the season was also measured.</p>
<p><strong>SSMI:</strong></p>
<p>In the SSM/I record, images were available for all months of the year, and image resolution was 25 km.&nbsp; Figure B &nbsp;(see Supplemental Documents)&nbsp; shows the total of seven pixels in the 25 km polar stereographic projection that encompassed McMurdo Sound; for each pixel, daily or bi-daily fractional sea ice cover was extracted.&nbsp; SSM/I passive microwave sea ice observations do not distinguish between fast ice and pack ice. There are small amounts of land and ice shelf contamination in pixels 1, 2, 5 and 7.</p>
Specified by the Principal Investigator(s)
<p>The value "notobs" indicates the phenomena was not observed for two possible reasons; either the phenomena did not occur that&nbsp;season or imagery was not available (e.g. MODIS visual imagery was only collected during daylit months).&nbsp; The value 'nd' indicates no data (e.g. SSM/I imagery was too&nbsp;coarse to distinguish east&nbsp;and west side minimums).</p>
<p><strong>SSM/I:</strong></p>
<p>Data were processed using the bootstrap algorithm (National Snow and Ice Data Center, Comiso, 2000, Cavalieri et al. 2015) for the 1978/79-2014/15 seasons.</p>
<p>Comiso, J (2000, updated 2015) Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS. Version 2, 1979-2015. Boulder, Colorado USA: NASA DAAC at the National Snow and Ice Data Center.</p>
<p>Cavalieri DJ, Parkinson CL, Gloersen P, and Zwally HJ (2015) Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 1.1 Southern Hemisphere, 1978-2015. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. (doi:10.5067/8GQ8LZQVL0VL) Accessed 11 Dec 2015.</p>
<p><strong>BCO-DMO Data Manager Processing Notes:</strong><br />
* added a conventional header with dataset name, PI name, version date<br />
* modified parameter names to conform with BCO-DMO naming conventions<br />
* blank values indicating no observed phenomena replaced with no data value 'nd'<br />
* added approximate latitude and longitude of McMurdo Station<br />
<br />
Data version 2 (2020-02-20)<br />
*&nbsp;&nbsp;Data from data version 1 (<span style="font-size:13px">2017-01-31)&nbsp;</span>updated.&nbsp;<span style="font-size:13px">Column values for “edge_dist_min,&nbsp; ice_min_west_year,&nbsp; ice_min_west_month” switched with “refreeze_begin_year,&nbsp; refreeze_begin_month,&nbsp; refreeze_begin_day” values where image_source was SSMI.</span></p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Scanning Multichannel Microwave Radiometer
Scanning Multichannel Microwave Radiometer
PI Supplied Instrument Name: Scanning Multichannel Microwave Radiometer PI Supplied Instrument Description:Scanning Multichannel Microwave Radiometer Instrument Name: Radiometer Instrument Short Name:Radiometer Instrument Description: Radiometer is a generic term for a range of instruments used to measure electromagnetic radiation (radiance and irradiance) in the atmosphere or the water column. For example, this instrument category includes free-fall spectral radiometer (SPMR/SMSR System, Satlantic, Inc), profiling or deck cosine PAR units (PUV-500 and 510, Biospherical Instruments, Inc). This is a generic term used when specific type, make and model were not specified. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/122/
MODIS
MODIS
PI Supplied Instrument Name: MODIS PI Supplied Instrument Description:Moderate-resolution Imaging Spectroradiometers (MODIS) Instrument Name: Radiometer Instrument Short Name:Radiometer Instrument Description: Radiometer is a generic term for a range of instruments used to measure electromagnetic radiation (radiance and irradiance) in the atmosphere or the water column. For example, this instrument category includes free-fall spectral radiometer (SPMR/SMSR System, Satlantic, Inc), profiling or deck cosine PAR units (PUV-500 and 510, Biospherical Instruments, Inc). This is a generic term used when specific type, make and model were not specified. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/122/
SSM/I
SSM/I
PI Supplied Instrument Name: SSM/I PI Supplied Instrument Description:Special Sensor Microwave Imager-family passive microwave sensors (SSM/I) Instrument Name: Special Sensor Microwave Imager Instrument Short Name:SSM/I Instrument Description: The Special Sensor Microwave Imager (SSM/I) is a passive microwave radiometer that measures atmospheric, oceanic and terrestrial microwave brightness temperatures at 19.35, 22.2, 37.0, and 85.5 GHz, from which ocean surface wind speed, atmospheric water vapour, cloud liquid water and rain rate can be derived. The SSM/I consists of an offset parabolic reflector of dimensions 24 x 26 inches, fed by a corrugated, broad-band, seven-port horn antenna. The reflector and feed are mounted on a drum that contains the radiometers, digital data subsystem, mechanical scanning subsystem, and power subsystem. The reflector-feed-drum assembly is rotated about the axis of the drum by a coaxially mounted bearing and power transfer assembly (BAPTA). All data, commands, timing and telemetry signals, and power pass through the BAPTA on slip ring connectors to the rotating assembly. The absolute brightness temperature of the scene incident upon the antenna is received and spatially filtered by the antenna to produce an effective input signal or antenna temperature at the input of the feed horn antenna. The SSM/I has seven channels, four frequencies, and is orthogonally polarised. It rotates continuously about an axis parallel to the local spacecraft at 31.6 rpm and measures the upwelling scene brightness temperature over an angular range of 102.4 degrees at nadir. The active scene measurements lie +51.2 to -51.2 degrees about the forward (F10, F11) or aft (F8) direction. This results in a swath width of approximately 1400 kilometres. During each 1.9 second scan, 128 discrete uniformly spaced radiometric samples are taken at the two 85 GHz channels and, on alternate scans, 64 discrete samples are taken at the remaining lower frequency channels. The antenna beam intersects the Earth's surface at an incidence angle of 53.1 degrees. Flown on F08, F10, F11, F13, F14, F15, F16, F17, F18 F19. https://nsidc.org/data/docs/daac/ssmi_instrument.gd.html
Deployment: TERRA_McMurdo_observations
TERRA_McMurdo_observations
TERRA
Community Standard Description
TERRA
satellite
TERRA_McMurdo_observations
Stacy Kim
Moss Landing Marine Laboratories
Deployment: AQUA_McMurdo_observations
AQUA_McMurdo_observations
AQUA
Community Standard Description
AQUA
satellite
AQUA_McMurdo_observations
Stacy Kim
Moss Landing Marine Laboratories
TERRA
Community Standard Description
TERRA
satellite
AQUA
Community Standard Description
AQUA
satellite