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Full catalog/SASSIE_ECCO_L4_SEA_ICE_VOL_AREA_TEND_LLC1080GRID_DAILY_V1R1
SASSIE_ECCO_L4_SEA_ICE_VOL_AREA_TEND_LLC1080GRID_DAILY_V1R1·vV1R1·dataset

How fast sea ice and snow amounts change (daily)

SASSIE ECCO Sea-Ice and Snow Horizontal Volume and Area Tendencies - Daily Mean llc1080 Grid (Version 1 Release 1)
ocean NASA POCLOUD Level 4 NETCDF4
In plain English

What it measures. Daily estimates of how quickly the amount of Arctic sea ice and its snow cover is changing over time, given as tendencies in ice volume and area.

How it's made. Produced by the SASSIE ECCO model, which combines observations with an ocean and sea-ice circulation model run at fine resolution over the Arctic, rather than measured directly by a satellite.

How & where you'd use it. Helps researchers understand what's driving changes in Arctic sea ice from day to day, particularly around melting ice and upper-ocean saltiness; one of 22 related datasets from the project.

What's measured

OCEANS › SEA ICECRYOSPHERE › SEA ICEEARTH SCIENCE SERVICES › MODELS › OCEAN GENERAL CIRCULATION MODELS (OGCM)/REGIONAL OCEAN MODELS

Coverage & cadence

  • Time span2014-01-15 → 2021-02-08
  • Measured byMITgcm
  • Processing levelLevel 4
  • FormatsNETCDF4
  • StatusCOMPLETE

What you can do with it

  • Watch sea-surface temperature and marine heatwaves
  • Spot algal blooms and ocean-colour shifts
  • Support fisheries and coastal monitoring
Official description

This dataset provides daily-averaged model-simulated sea-ice and snow horizontal volume tendencies from the SASSIE ECCO Version 1 Release 1 (V1R1) ocean and sea-ice state estimate. ECCO (Estimating the Circulation and Climate of the Ocean) is a 4D ocean circulation model combining observations with a general circulation model (GCM) to estimate the complete time-evolving state of the global ocean. In this project, it was run over the Arctic polar region in support of the Salinity and Stratification at the Sea Ice Edge (SASSIE) field experiment - a NASA experiment focused on salinity anomalies in the upper ocean generated by melting sea ice. The SASSIE ECCO simulation was produced by downscaling the global ECCO state estimate from 1/3 to 1/12 degree grid cells, where the global solution provided initial and boundary conditions and atmospheric forcing. The output fields for this dataset cover the period 2014-01-15T12:00:00 to 2021-02-07T12:00:00 and are consolidated onto a single curvilinear grid face focusing on the Arctic domain, using the 5 faces of the lat-lon-cap 1080 (llc1080) native grid from the original simulation. Ocean density and pressure are provided at 90 depth levels from 0.5 meters to 6760 meters. Daily files are available in netCDF-4. This dataset is one of 22 produced by SASSIE ECCO - the full list can be found in the user guide. To cite all 22 datasets with a single DOI, please cite the user guide (citation details and DOI can be found within the user guide).

Get the data

sassie_ecco_l4_sea_ice_vol_area_tend_llc1080grid_daily_v1r1_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="SASSIE_ECCO_L4_SEA_ICE_VOL_AREA_TEND_LLC1080GRID_DAILY_V1R1",
    version="V1R1",
    bounding_box=(-122.5, 37.2, -121.8, 37.9),  # your area (W,S,E,N)
    temporal=("2024-01-01", "2024-12-31"),       # your dates
)
files = earthaccess.open(results)   # stream straight from POCLOUD
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.