This is a partial list and subject to additions and clarifications. Originally compiled by Jim Moore and Scot Loehrer, The National Center for Atmospheric Research (NCAR) Earth Observing Laboratory (EOL)

Weather and Climate Data

Alaska Satellite Facility - http://www.asf.alaska.edu/
Alaska Climate Research Center - http://climate.gi.alaska.edu/
Alaska Snow, Water and Climate Services (NRCS) - http://ambcs.org/
NWS Fairbanks - http://pafg.arh.noaa.gov/
NWS Alaska Region HQ - http://www.arh.noaa.gov/
NWS Anchorage - http://pafc.arh.noaa.gov/
NWS Anchorage Mesonet - http://pafc.arh.noaa.gov/mesonet.php
Alaska DOT Road Weather - http://www.roadweather.alaska.gov/iways/roadweather/forms/AreaSelectFor…
Neighborhood Environmental Watch Network - http://environweb.lanl.gov/newnet/
UAF Water and Environmental Research Center Data
FAA Alaska Aviation Cameras - http://akweathercams.faa.gov/
Fairbanks Mesonet - http://www.tanana-watershed.org/mesonet/
SNOTEL Network - http://www.wcc.nrcs.usda.gov/snow/
ARM data archive - http://www.archive.arm.gov/
Alaska RAWS Network - http://www.raws.dri.edu/wraws/akF.html
NOAA International Arctic Systems for Observing the Atmosphere (IASOA) - http://iasoa.org/iasoa/
NASA/LaRC Atmospheric Science Data Center - http://eosweb.larc.nasa.gov/
NOAA Climate Services - http://www.climate.gov/#dataServices
NOAA Climate Research - http://www.noaa.gov/climate
NOAA/ESRL Global Monitoring Division (Barrow, AK Observatory) - http://www.esrl.noaa.gov/gmd/obop/brw/

GIS Data

Geographic Information Network of Alaska - http://www.gina.alaska.edu/
Alaska State Geo-Spatial Data Clearinghouse - http://www.asgdc.state.ak.us/
Glacier Bay Ecosystem GIS - http://www.inforain.org/glacierbay/
USGS Alaska Geospatial Data Clearinghouse - http://agdc.usgs.gov/data/
Alaska Mapped - http://www.alaskamapped.org/
State of Alaska Forestry GIS - http://www.forestrymaps.alaska.gov/
Alaska Dept of Fish and Game GIS - http://www.adfg.alaska.gov/index.cfm?adfg=maps.main
Alaska Interagency Coordination Center Fire GIS - http://fire.ak.blm.gov/predsvcs/maps.php
Alaska BLM GIS Data - http://sdms.ak.blm.gov/sdms/
Barrow Area Information Database - http://baid.utep.edu/
Canadian GeoConnections – Discovery Portal - http://geodiscover.cgdi.ca/web/guest/home
The Atlas of Canada - http://atlas.nrcan.gc.ca/site/english/index.html
Circumpolar Arctic Vegetation Mapping Project - http://www.geobotany.uaf.edu/cavm/
International Bathymetric Chart of the Arctic Ocean - http://www.ngdc.noaa.gov/mgg/bathymetry/arctic/arctic.html

Other Multidisciplinary Data

International Arctic Research Center - http://www.iarc.uaf.edu/index.php
National Data Buoy Center- Alaska Marine Data - http://www.ndbc.noaa.gov/maps/Alaska.shtml
Alaska Ocean Observing System (AOOS) - http://www.aoos.org/
Seasonal Ice Zone Observing Network (SIZONET) - http://www.sizonet.org/
Arctic Research Assets Map - http://data.aoos.org/maps/arctic_assets/
USGS Alaska Science Center - http://alaska.usgs.gov/
USGS Water Resources of Alaska - http://alaska.usgs.gov/science/water/index.php
USGS Biological Resources of Alaska - http://alaska.usgs.gov/science/biology/index.php
USDA/NRCS Alaska Soil Survey - http://www.ak.nrcs.usda.gov/soils/index.html
Alaska Volcano Observatory - http://www.avo.alaska.edu/
Alaska DN Division of Geological and Geophysical Surveys - http://www.dggs.dnr.state.ak.us/
Arctic Data Portal - http://www.arcticdata.is/
IAC sponsored Arctic Portal - http://arcticportal.org/
Alaska Energy data Inventory - http://www.akenergyinventory.org/data/data-archive
Alaska Native Language Archive - http://www.uaf.edu/anla/
Alaska Native Knowledge Center - http://www.ankn.uaf.edu/
Arctic Borderlands Ecological Knowledge Co-op - http://www.taiga.net/coop/index.html
Exchange for Local Observations and Knowledge of the Arctic (ELOKA) - http://eloka-arctic.org/
Arctic LTER - http://ecosystems.mbl.edu/arc/
National Snow and Ice data Center (NSIDC) - http://nsidc.org/
Alaska Fisheries Science Center - http://www.afsc.noaa.gov/
NOAA Coastal Data Development Center - http://www.ncddc.noaa.gov/
NOAA Near Shore Fish Atlas of Alaska - http://www.fakr.noaa.gov/habitat/fishatlas/
Russian-American Long-term Census of the Arctic - https://www.pmel.noaa.gov/rusalca/
Nansen and Amundsen Basins and Canadian Basin Observational Systems - http://nabos.iarc.uaf.edu/index.php
Fisheries and Oceans Canada - http://www.dfo-mpo.gc.ca/index-eng.htm
Arctic Data at NCAR/EOL - http://arctic.eol.ucar.edu/
Advanced Cooperative Arctic Data and information System (ACADIS) - http://www.aoncadis.org/
Arctic Research Mapping application (ARMAP) - http://armap.org/
National Ice Center - http://www.natice.noaa.gov/
Distributed Biological Observatory - https://www.pmel.noaa.gov/dbo/
Canadian Ice Service - http://www.ec.gc.ca/glaces-ice/default.asp?lang=En&n=D32C361E-1
Toolik-Arctic Geobotanical Atlas - http://www.arcticatlas.org/index
Toolik Field Station/Institute of Arctic Biology - http://toolik.alaska.edu/
Circum Arctic Environmental Observatories Network (CEON) - http://www.ceon.utep.edu/
International Arctic Buoy Program (IABP) - http://iabp.apl.washington.edu/
Arctic Regional Ocean Observing System (Arctic ROOS) - http://arctic-roos.org/observations
NASA/JPL Pacific Ocean Data (Prince William Sound) - http://ourocean.jpl.nasa.gov/PWS/
Scenarios Network for Alaska and Arctic Planning - http://www.snap.uaf.edu/index.php
Sustained Arctic Observing Networks (SAON) - http://www.arcticobserving.org/
Lamont-Doherty Earth Observatory - http://www.ldeo.columbia.edu/
The Geophysical Institute Permafrost Laboratory (GIPL) Data and Maps - http://permafrost.gi.alaska.edu/sites_map