River ice is a known occurrence in cold climate hydrological systems. The annual cycle of formation, growth, decay and clearance of river ice can include low flows and ice jams, as well as mid-winter and spring break-up events. Reports and associated data on river ice occurrence are often limited to site and season specific studies. Within Canada, the National Hydrometric Program (NHP) operates a network of gauging stations with water level as the primary measured variable. It is well known by the hydrologic community that river ice related information can be extracted from water level records. Near two decades ago, the Water Science and Technology Directorate of Environment and Climate Change Canada initiated a long-term effort to compile, archive and extract river ice related information from hydrometric records. As a result, this work has delivered an original research data set: the Canadian River Ice Database (CRID). The CRID includes near 71,000 river ice variables from a network of 196 NHP sites throughout Canada in operation within the period 1894 to 2015. The task of compiling this database involved manual extraction, data entry and input of more than 460,000 information fields on water level, discharge, date, time and data quality rating. In excess of 100,000 paper and digital files were reviewed with the network representing over 10,000 station years of active operation. This database follows up on several earlier efforts to compile information on river ice and expands the scope and detail for use in Canadian river ice research and applications. At each location, time series of up to 15 river ice variables specific to occurrence of freeze-up and winter-low events, occurrence of mid-winter break-up, ice thickness, spring break-up and maximum open-water level is compiled. Following the Government of Canada Open Data initiative, this original river ice data set is available to the public.

The Daily Lake Ice Phenology Time Series Derived from AMSR-E and AMSR2 provides 5 km ice phenology retrievals describing daily lake ice conditions (ice-on/ice-off) over the Northern Hemisphere. This satellite-based data set allows for rapid assessment and regional monitoring of seasonal ice coverage over large lakes with resulting accuracy suitable for global change studies. Data are provided in the 5 km Northern Hemisphere Equal-Area Scalable Earth Grid 2.0 (EASE-Grid 2.0).

This dataset provides details about ICE’s Data Modernization Strategy, which provides ongoing guidelines to encourage data that is secure, connected, accessible and reliable.

The International Ice Patrol (IIP) has been collecting information on iceberg activity in the North Atlantic since 1913. This database contains the data from these sightings from 1960 through most current processing. The IIP data files include latitude and longitude of sighted icebergs, coded iceberg size and shape class, and date and time of the sighting. The IIP area of responsibility is 40° N to 65° N and 39° W to 57° W. Note, the IIP area of responsibility prior to 2006 was 40° N to 52° N and 39° W to 57° W. Data are in space-delimited ASCII text files and are available via FTP.

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Since 2009, the Watershed Hydrology and Ecosystems Research Division of Environment and Climate Change Canada (ECCC) has coordinated spring time multi point ice thickness and composition surveys at up to 15 lake sites in the Northern Hemisphere. Data collected includes on ice snow depth, total ice thickness, depth of white ice, depth of black ice and hydrostatic water level. A review of open data, literature and data request sources identify additional ice thickness, composition and phenology datasets for the locations. This report summarizes the work undertaken to compile these Lake Ice (LI)- Thickness, Composition(TC) and Phenology(P) datasets for upload to a government of Canada open data portal. Compiling these historical lake ice data is a necessary first step towards better understanding the effects of climate on lake ice and its implication on water quality.

Notice: Due to funding limitations, this data set was recently changed to a “Basic” Level of Service. Learn more about what this means for users and how you can share your story here: Level of Service Update for Data Products.

The Sea Ice Index provides a quick look at Arctic- and Antarctic-wide changes in sea ice. It is a source for consistent, up-to-date sea ice extent and concentration images, in PNG format, and data values, in GeoTIFF and ASCII text files, from November 1978 to the present. Sea Ice Index images also depict trends and anomalies in ice cover calculated using a 30-year reference period of 1981 through 2010.

The images and data are produced in a consistent way that makes the Index time-series appropriate for use when looking at long-term trends in sea ice cover. Both monthly and daily products are available. However, monthly products are better to use for long-term trend analysis because errors in the daily product tend to be averaged out in the monthly product and because day-to-day variations are often the result of short-term weather.

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A statewide map that highlight the relative condition of roadway segments including information based not only on the composite Infrastructure Condition Evaluation (ICE) rating, but also each of the seven criteria: PCI, SIA Sufficiency Rating, IRI, Combination Truck AADT, Single Unit Truck AADT, Passenger AADT, and Congestion (V/C). For more information visit: https://www.iowadot.gov/systems_planning/pr_guide/InterstateCorridorPlan.pdf.

Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support for this data set may be limited.This data set contains ice thickness measurements collected over sea ice in the Barrow, Alaska area and at the Navy Ice Camp in the main pack ice of the Arctic Ocean as part of the joint in situ and aircraft AMSRIce03 campaign conducted in March 2003.

This data set provides a Climate Data Record (CDR) of sea ice concentration from passive microwave data. The CDR algorithm output is a rule-based combination of ice concentration estimates from two well-established algorithms: the NASA Team (NT) algorithm (Cavalieri et al. 1984) and NASA Bootstrap (BT) algorithm (Comiso 1986). The CDR is a consistent, daily and monthly time series of sea ice concentrations from 25 October 1978 through the most recent processing for both the north and south polar regions. All data are on a 25 km x 25 km grid.Note: A near-real-time version of this data set also exists to fill the gap between the time that this data set is updated through to the present. The data set is called the Near-Real-Time NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration (https://nsidc.org/data/g10016).

United States Imports from Colombia of Ice Cream, Other Edible Ice was US$131.03 Thousand during 2024, according to the United Nations COMTRADE database on international trade. United States Imports from Colombia of Ice Cream, Other Edible Ice - data, historical chart and statistics - was last updated on December of 2025.

This data set contains depth sounder measurements of ice elevation, ice surface, ice bottom, and ice thickness for Greenland and Antarctica taken from the Multichannel Coherent Radar Depth Sounder (MCoRDS). The data were collected as part of Operation IceBridge funded aircraft survey campaigns.

United States Imports from Poland of Ice Cream, Other Edible Ice was US$955.4 Thousand during 2024, according to the United Nations COMTRADE database on international trade. United States Imports from Poland of Ice Cream, Other Edible Ice - data, historical chart and statistics - was last updated on November of 2025.

The Environmental Working Group Joint U.S.-Russian Arctic Sea Ice Atlas is part of the NOAA@NSIDC Environmental Working Group (EWG) Atlases data collection.The EWG Joint U.S.-Russian Arctic Sea Ice Atlas was developed by U.S. and Russian partners in the late 1990s. It is based on observations collected over the period 1950 through 1994 from satellite data, ice stations, icebreakers, and airborne ice surveys. Additionally, U.S. submarines operating in the Arctic over the period from 1977 through 1993 collected data used for a previously classified ice climatology. The Atlas contains four main sections: an introduction to Arctic sea ice, a section that describes primary sea ice data sets and analysis methods, a section with a graphical atlas containing two-dimensional color-coded ice charts and graphical products, and an Arctic sea ice data section. Note: The Russian chart component of this product has been replaced and updated by Sea Ice Charts of the Russian Arctic in Gridded Format, 1933-2006 and the U.S chart component by National Ice Center Arctic Sea Ice Charts and Climatologies in Gridded Format, 1972-2007 and U.S. National Ice Center Arctic and Antarctic Sea Ice Concentration and Climatologies in Gridded Format.

This data product is a set of polar ocean region masks. The masks have been developed primarily to support sea ice products, but they are potentially useful for other applications.

This data set contains ice thickness, surface and bed elevation, and echo strength measurements taken over Antarctica using the Hi-Capability Airborne Radar Sounder (HiCARS) instrument. The data were collected by scientists working on the Investigating the Cryospheric Evolution of the Central Antarctic Plate (ICECAP) project, which was funded by the National Science Foundation (NSF) and the Natural Environment Research Council (NERC) with additional support from NASA Operation IceBridge.

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Data from a measurement campaign examining the oceanic connection between an ice shelf cavity and sea ice. Here we present data from the ocean boundary-layer in an Ice Shelf Water outflow region from the Ross/McMurdo Ice Shelves. From a fast ice field camp during the Spring of 2015, we captured the kinematics of free-floating relatively large (in some cases 10s of mm in scale) ice crystals that were advecting and then settling upwards in a depositional layer on the sea ice underside (SIPL, sub-ice platelet layer). Simultaneously, we measured the background oceanic temperature, salinity, currents and turbulence structure. At the camp location the total water depth was 536 m, with the uppermost 50 m of the water column being in-situ super-cooled. Tidal flow speeds had an amplitude of around 0.1 m s-1 with dissipation rates in the under-ice boundary layer measured to be up to e=10-6 W kg-1. Acoustic sampling (200 kHz) identified backscatter from large, individually identifiable suspended crystals associated with crystal sizes larger than normally described as frazil. Crystal sizes in the SIPL were also measured.

RELATED PUBLICATION: https://doi.org/10.3389/fmars.2023.1103740

GET DATA: https://doi.org/10.17882/90432

Ecuador Imports from Chile of Ice Cream, Other Edible Ice was US$12.9 Thousand during 2024, according to the United Nations COMTRADE database on international trade. Ecuador Imports from Chile of Ice Cream, Other Edible Ice - data, historical chart and statistics - was last updated on November of 2025.