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Full catalog/SASSIE_ECCO_L4_ATM_STATE_LLC1080GRID_DAILY_V1R1
SASSIE_ECCO_L4_ATM_STATE_LLC1080GRID_DAILY_V1R1·vV1R1·dataset

Modeled Arctic air temperature, humidity and wind, daily

SASSIE ECCO Atmosphere Surface Temperature, Humidity, and Wind - Daily Mean llc1080 Grid (Version 1 Release 1)
atmosphere NASA POCLOUD Level 4 NETCDF4
In plain English

What it measures. Daily modeled conditions of the air just above the Arctic ocean: surface temperature, humidity, and wind.

How it's made. Not measured directly but produced by the SASSIE ECCO ocean model run over the Arctic, which blends observations into a physically consistent simulation on a fine grid.

How & where you'd use it. Used to study the Arctic, especially how melting sea ice affects the ocean's surface, in support of the SASSIE field experiment. Aimed at researchers working with model output.

What's measured

ATMOSPHERE › ATMOSPHERIC TEMPERATURE › SURFACE TEMPERATURE › AIR TEMPERATUREATMOSPHERE › ATMOSPHERIC WATER VAPOR › WATER VAPOR INDICATORS › HUMIDITY › SPECIFIC HUMIDITYATMOSPHERE › ATMOSPHERIC WINDS › SURFACE WINDS › U/V WIND COMPONENTSEARTH 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

  • Map air pollutants — NO₂, aerosols, ozone
  • Track greenhouse gases and Earth's energy budget
  • Feed weather and air-quality analysis
Official description

This dataset provides model-simulated, daily-averaged atmosphere surface temperature, humidity, and winds 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. 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_atm_state_llc1080grid_daily_v1r1_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="SASSIE_ECCO_L4_ATM_STATE_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.