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AirMOSS: L4 Daily Modeled Net Ecosystem Exchange (NEE), AirMOSS sites, 2012-2014

Data Set Overview

Data setAirMOSS: L4 Daily Modeled Net Ecosystem Exchange (NEE), AirMOSS sites, 2012-2014
Release date2016-11-22
ProjectAirborne Microwave Observatory of Subcanopy and Subsurface
Time Period2012-01-01 to 2014-10-30


This data set provides Level 4 daily estimates of Net Ecosystem Exchange (NEE) of CO2 at a spatial resolution of 30 arc-seconds (~1 km) for seven of the sites covered by the Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) flights, each site spanning ~2500 km2. The daily NEE estimates are generally available from October 2012 through October 2014, although the exact time ranges vary by site. The AirMOSS L4 daily NEE were produced by the Ecosystem Demography Biosphere Model (ED2) augmented by the AirMOSS-derived L2/3 root zone soil moisture data as an additional input. The AirMOSS soil moisture data were used to estimate the sensitivity of carbon fluxes to soil moisture and to diagnose and improve estimation and prediction of NEE by constraining the model's predictions of soil moisture and its impact on above- and below-ground fluxes.


Data set reference document


Zhang, K., A.A. Ali, A. Antonarakis, and P.R. Moorcroft. 2016. AirMOSS: L4 Daily Modeled Net Ecosystem Exchange (NEE), AirMOSS sites, 2012-2014. ORNL DAAC, Oak Ridge, Tennessee, USA.
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Airborne Microwave Observatory of Subcanopy and Subsurface: The goal of NASA’s Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) investigation is to provide high-resolution observations of root-zone soil moisture over regions representative of the major North American climatic habitats (biomes), quantify the impact of variations in soil moisture on the estimation of regional carbon fluxes, and extrapolate the reduced-uncertainty estimates of regional carbon fluxes to the continental scale of North America. The AirMOSS campaign used an airborne ultra-high frequency synthetic aperture radar flown on a Gulfstream-III aircraft to derive estimates of soil moisture down to approximately 1.2 meters. Extensive ground, tower, and aircraft in-situ measurements were collected to validate root-zone soil measurements and carbon flux model estimates. The AirMOSS soil measurements can be used to better understand carbon fluxes and their associated uncertainties on a continental scale. Additionally, AirMOSS data provide a direct means for validating root-zone soil measurement algorithms from the Soil Moisture Active & Passive (SMAP) mission and assessing the impact of fine-scale heterogeneities in its coarse-resolution products.

Project data set list for Airborne Microwave Observatory of Subcanopy and Subsurface.

Companion Files

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  • Fig1_AirMOSS_L4_Daily_NEE.png
  • AirMOSS_L4_Daily_NEE.pdf
  • AirMOSS_L4NEE_ATBD_V2.0_160928.pdf

Data Files

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Data File (Granule)File SizeDatesLatitudeLongitude
L4ANEE_AssmltdL23_Moisst_v1_daily.nc4 24.4 MB 2012-01-01 - 2014-10-30 36.88N To 35.78N96.82W To 99.00W
L4ANEE_AssmltdL23_Tonzi_v1_daily.nc4 5.5 MB 2013-10-01 - 2014-10-30 38.62N To 37.50N120.00W To 121.25W
L4ANEE_AssmltdL23_Walnut_v1_daily.nc4 12.6 MB 2012-09-01 - 2014-10-30 32.12N To 31.50N109.38W To 111.50W
L4ANEE_AssmltdL23_duke_v2.0_daily.nc4 16.1 MB 2012-10-15 - 2014-08-26 36.37N To 35.44N78.69W To 79.85W
L4ANEE_AssmltdL23_harvard_v2.0_daily.nc4 15.9 MB 2012-10-15 - 2014-08-26 43.38N To 42.29N71.84W To 72.39W
L4ANEE_AssmltdL23_howland_v2.0_daily.nc4 11.5 MB 2012-10-15 - 2014-08-26 45.78N To 44.67N68.34W To 69.09W
L4ANEE_AssmltdL23_metolius_v2.0_daily.nc4 11.0 MB 2013-06-22 - 2014-08-26 45.24N To 43.38N120.36W To 123.28W

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