Data Table

Note new data formats !

An archive version of the data is at the National Snow and Ice Data Center. The PSC version (this web site) will be updated as new data becomes available while the NSIDC version will updated about once a year. The NSIDC web site for this data set is http://dx.doi.org/10.7265/N5D50JXV.

Source ID	Years	Location	Samples	Summaries	Distributions	Parameter	Summary Variables	Version Source/CDR update
NPEO	2001-2010	North Pole	65	X	X	Draft	water temperature Instrument depth Ice draft
BGEP	2003-2017	Beaufort Sea	511	X	X	Draft	Water temperature Instrument depth Ice draft
IOS-EBS	1990-2003	Eastern Beaufort	382	X	X	Draft	water temperature Instrument depth Ice draft
IOS-CHK	2003-2005	Chukchi Sea	26	X	X	Draft	Water temperature Instrument depth Ice draft
US-Subs-An	1960-2005	Arctic Ocean	844	X	X	Draft	Water temperature Instrument depth Ice draft	2016-03-09
US-Subs-Dg	1986-2014	Arctic Ocean	1124	X	X	Draft	Water temperature Instrument depth Ice draft	2018-11-21
US-Subs-Hi	1960, 1962	Arctic Ocean	309	X	Not Available (tabulated at 50km)	Draft	Ice Concentration Instrument depth Ice draft	Transcribed from LeShack 1980
UK-Subs-An	1987,1991	Arctic Ocean	149	X	X	Draft	Water temperature Instrument depth Ice draft
UK-Subs-Dg	1976	Arctic Ocean	27	X	X	Draft	Water temperature Instrument depth Ice draft
AWI-GS	1991-2002	Greenland Sea	134	X	X	Draft	Water temperature Instrument depth Ice draft
Air-EM	2001-2015	Arctic Ocean	455	X	X	Snow+Ice	none Instrument height Ice plus snow thickness	2016-05-16
ICESat1-G	2003-2008	Arctic Ocean	29452	X	X	Thickness	none Freeboard Ice thickness
BIO-LS	2003-2007	Lancaster Sound	36	X	X	Draft	water temperature Instrument depth Ice draft
CanCoast	1947-2013	Canadian Archipelego, coastal stations	6242	X	Not Available	Thickness	none Snow depth Ice thickness
Davis_St	2006-2008	Davis Strait	67	X	X	Draft	water temperature Instrument depth Ice draft
IceBridge-V2	2009-2013	Arctic Ocean	933	X	X	Thickness	Snow depth Thickness uncertainty Ice thickness	Version 2 IDCSI4.001/ 20160310
IceBridge-QL Quicklook	2012-2019	Arctic Ocean	1518	X	X	Thickness	Snow depth Thickness uncertainty Ice thickness	Quicklook Product Version 1 IDCSI2.001 and IDCS4 (for 2016-19) Retrieved 20190920
ICESat1-SH	2003-2008	Antarctica	12432	X	Not Available	Thickness	none Thickness uncertainty Ice thickness
AWI-WS	2002-2012	Antarctica	757	X	X	Draft	water temperature instrument depth Ice draft
Cryosat-AWI	2010(Nov) 2018(Oct)	Arctic	170522	X	Not Available	Thickness	Random Thickness Uncertainty Snow Depth Ice Thickness	AWI vers. 2.1 20181118 (download)
ALL Data tar file	1947-2019	ALL		X	X	Draft/Thickness	see individual files	20181130
All Data NetCDF	1947-2019	ALL		X	Not Available	Variables from input text files mapped to correctly named variable	netcdf variables have dimension [4,time] where the first dimension corresponds to Mean,Min,Max,Sigma	20181130

 

Click on an X to get the file from each source.

Each summary file has data on up to three different variables which are listed in the last column.

 

Metadata:
Platform_metadata, This file has a line for each mooring, campaign, or station with the time and position ranges for that platform and the number of point measurements and aggregate samples.

Draft, Thickness, or Freeboard Summaries
Each file begins with one header line identifying the variables. The variables are listed in the table below. The header and data formats are
hdr_fmt = '( 2a12, a10, 5a7, 6a8, a7, a10, 4(4a10) ) '
data_fmt = '( 2a12, i10, i7,3f7.1,i7, 6f8.2, i7, i10, 4(4f10.2) )'

Variables in Summary Files

Variable	Description
source	Source code name
platform	Platform code name
index	unique index for the observation
year	Year
mean_yday	Mean year day (the year begins with yday=1.000)
min_yday	minimum day of year
max_yday	maximum day of year
month	Month (1-12)
lat	Mean latitude (deg N)
lon	Mean longitude (deg E)
min_lat	minimum latitude
max_lat	maximum latitude
min_lon	minimum longitude
max_lon	maximum longitude
n_days / length	number of days with observations (moorings) / or Length of the track (km), excluding gaps
nsamps	Number of pointsamples
mean_x	Mean x (depends on the data set, see the data table above)
min_x	Minimum x
max_x	Maximum x
sd_x	Standard Deviation of x
mean_y	Mean y (depends on the data set, see the data table above)
min_y	Minimum y
max_y	Maximum y
sd_y	Standard Deviation of y
mean_z	Mean ice draft or thickness (m), depends on the data set
min_z	Minimum
max_z	Maximum
sd_z	Standard deviation

 

Ice Thickness Distribution Files
Each file begins with one header line identifying the variables. The variables are listed in the table below with typical values of the number of bins, bin width, and first bin in brackets. The header and data formats are
hdr_fmt = '( 2a12, a10, 5a7, 6a8, a7, a10, a6, 8a7)'
data_fmt = '( 2a12, i10, i7,3f7.1,i7, 6f8.2, i7, i10, i6,2f7.2, 300f7.4 )'

 

Variables in Distribution Files

Variable	Description
Source	Source code name
platform	Platfrom code name
index	Unique index for the observation (same as in the summary files)
mean_yday	Mean year day (the year begins with yday=1.000)
min_yday	minimum day of year
max_yday	maximum day of year
month	Month (1-12)
lat	Mean latitude (deg N)
lon	Mean longitude (deg E)
min_lat	minimum latitude
max_lat	maximum latitude
min_lon	minimum longitude
max_lon	maximum longitude
n_days / length	number of days with observations (moorings) or Length of the track (km), excluding gaps
nsamps	Number of point samples
nbins	Number of bins in the distribution [300]
width	Width of bins (m) (0.10]
first	Center of first bin (m) [0.00]
distribution	PDF as fraction (nbins values)

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