How to Calculate Sea Ice Changes

Dataset Identification:

Resource Abstract:
This set of three videos illustrates how math is used in satellite data analysis. NASA climate scientist Claire Parkinson explains how the Arctic and Antarctic sea ice covers are measured from satellite data and how math is used to determine trends in the data. In the first video, she leads viewers from satellite data collection through obtaining a time series of monthly Arctic and Antarctic average sea ice extents for November 1978-December 2016. In the second video, she begins with the time series from the first video, removes the seasonal cycle by calculating yearly averages, and proceeds to calculate the slopes of the lines to get trends in the data, revealing decreasing sea ice coverage in the Arctic and increasing sea ice coverage in the Antarctic. In the third video, she uses a more advanced technique to remove the seasonal cycle and shows that the trends are close to the same, whichever method is used. She emphasizes the power of math and that the techniques shown for satellite sea ice data can also be applied to a wide range of data sets. <b>Note: See Related & Supplemental Resources for the maps and data files (1978-2016) that will allow you to do the calculations shown in the video. These also include data for different regions of the Arctic and Antarctic, enabling learners to do additional calculations beyond those shown in the videos.</b>
Citation
Title How to Calculate Sea Ice Changes
publication  Date   2014-09-04
presentationForm  documentDigital
Topic Category:  climatologyMeteorologyAtmosphere
Keywords:
Theme keywords:
Earth and space science:Earth processes:Climate
Earth and space science:Earth structure:Cryosphere
Engineering and technology:Remote sensing
Mathematics:Data collection, analysis and probability
Mathematics:Measurement
Mathematics:Problem solving
The nature of science:The scientific process
Arctic
Antarctic
Applied mathematics
Sea ice
Climate change
Trends
Slopes
Least squares fitting
Earth Science
Aqua
Theme keywords (theme):
Cover
thesaurus name >
Title Realm > Geosphere
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
Measurement
thesaurus name >
Title Activity > Observation
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
NASA
thesaurus name >
Title Organization > GOVERNMENT AGENCIES-U.S. FEDERAL AGENCIES
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
Sea Ice
thesaurus name >
Title Feature > Glacial Feature
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
Satellite
thesaurus name >
Title Realm > Planetary Structure
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
Analysis
Averaging
Calculation
thesaurus name >
Title Method > Information Processing
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
Climate Change
thesaurus name >
Title Process > Atmospheric Process
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
Measurement
thesaurus name >
Title Property > Measure
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
Earth Science
thesaurus name >
Title Science Domain > Earth Science
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
Aqua
thesaurus name >
Title Material > Chemical
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
Time Series
Data Set
thesaurus name >
Title Resource Type > Data Set
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Theme keywords (theme):
Slope
thesaurus name >
Title Feature > Physiographic Feature
publication  Date   2018-08-15
other Citation Details  Cinergi keyword enhanced.File generated at Wed Aug 15 21:50:35 UTC 2018
Resource language: 
Constraints on resource usage:
Legal Constraints
Access Constraints  otherRestrictions
use constraint:  otherRestrictions
Resource extent
Extent description
Applicable Everywhere
Geographic Extent
Geographic Bounding Box
westBoundLongitude  180
eastBoundLongitude  180
northBoundLatitude  90
southBoundLatitude  90
point of contact - pointOfContact
individual Name NASA GSFC Support
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Resource distribution information

Distributor
distributor contact - resourceProvider
organisation Name  NASA GSFC
Digital Transfer Options
Linkage for online resource
URL: http://www.nasa.gov/content/goddard/how-to-calculate-sea-ice-changes/
protocol WWW:LINK-1.0-http--link
link function search
Format
Format name HTML
Format version 

Metadata data stamp:  2014-09-04T00:00:00
Metadata contact - resourceProvider
organisation Name  NASA GSFC
Metadata scope code  dataset
Metadata language 
Metadata character set encoding:   utf8
Metadata standard for this record:  WMO Core Metadata Profile of ISO 19115 (WMO Core), 2003/Cor.1:2006 (ISO 19115), 2007 (ISO/TS 19139)
standard version:  1.3
Metadata record identifier:  11510/20141011103444579M

Metadata record format is ISO19139-2 XML (MI_Metadata)