Explanipedia

Soil organic carbon trends in US Midwest continuous maize and maize–soybean systems over 20 years Open

Shree R. S. Dangal, Girma Birru, Makki Khorchani, Andualem Shiferaw, Marty R. Schmer , et al. · 2025

Efforts have focused on managing agricultural lands to optimize ecosystem health and provide key ecosystem services, including soil carbon (C) sequestration, yield stability, and climate resilience. These efforts often rely on adopting cli…

Machine learning algorithms improve MODIS GPP estimates in United States croplands Open

Dorothy Menefee, Trey O. Lee, K. Colton Flynn, Jiquan Chen, Michael Abraha , et al. · 2023

Introduction: Machine learning methods combined with satellite imagery have the potential to improve estimates of carbon uptake of terrestrial ecosystems, including croplands. Studying carbon uptake patterns across the U.S. using research …

Investigating Freeze/Thaw soil emissions of nitric oxide using in situ and Tropomi observations Open

Jonathan E. Hickman, Enrico Dammers, Sally E. Pusede, Madeline Miles, Andy Suyker , et al. · 2023

Environmental science Chemistry Geology

Agricultural emissions of nitric oxide (NO) from soils can cause formation of tropospheric ozone and particulate matter pollution, and in the presence of ozone NO is rapidly transformed nitrogen dioxide (NO2), itself an air pollutant. Emis…

317 Importance and Difficulty of Measuring Complete Greenhouse gas Flux from Diverse Beef Production Systems Open

Galen E. Erickson, Andrea K Watson, Andy Suyker, Yijie Xiong, Jane Okalebo · 2022

Environmental science Biology

Cattle naturally respire CO2 from energy and rumen metabolism, and produce enteric CH4 from rumen fermentation. In addition, N2O is produced from soils used for agricultural production following precipitation events. These three gases need…

211 Greenhouse Gas Emissions from Two Beef Systems from Birth to Slaughter in Eastern Nebraska Open

Levi J McPhillips, Zachary E Carlson, J. C. MacDonald, Andy Suyker, Tala Awada , et al. · 2022

Environmental science Biology

Greenhouse gas emissions from a conventional (CONV) pasture-based cattle production system with cows wintered on corn residue and summer grazing of brome pasture was compared with partial-confinement system (ALT) with cows and calves in a …

Maize Leaf Appearance Rates: A Synthesis From the United States Corn Belt Open

Caio L. dos Santos, Lori Abendroth, Jeffrey A. Coulter, Emerson D. Nafziger, Andy Suyker , et al. · 2022

Biology

The relationship between collared leaf number and growing degree days (GDD) is crucial for predicting maize phenology. Biophysical crop models convert GDD accumulation to leaf numbers by using a constant parameter termed phyllochron (°C-da…

AmeriFlux FLUXNET-1F US-Ne1 Mead - irrigated continuous maize site Open

Andy Suyker · 2022

Geography Biology

This is the AmeriFlux Management Project (AMP) created FLUXNET-1F version of the carbon flux data for the site US-Ne1 Mead - irrigated continuous maize site. This is the FLUXNET version of the carbon flux data for the site US-Ne1 Mead - ir…

Towards Routine Mapping of Crop Emergence within the Season Using the Harmonized Landsat and Sentinel-2 Dataset Open

Feng Gao, Martha C. Anderson, David M. Johnson, Robert Seffrin, Brian Wardlow , et al. · 2021

Environmental science Geography Biology

Crop emergence is a critical stage for crop development modeling, crop condition monitoring, and biomass accumulation estimation. Green-up dates (or the start of the season) detected from remote sensing time series are related to, but gene…

Gap Filling of Net Ecosystem CO<sub>2</sub> Exchange (NEE) above Rain-Fed Maize Using Artificial Neural Networks (ANNs) Open

Babak Safa, Timothy J. Arkebauer, Qiuming Zhu, Andy Suyker, Suat Irmak · 2021

Mathematics Computer science

The eddy covariance technique is an accurate and direct tool to measure the Net Ecosystem Exchange (NEE) of carbon dioxide. However, sometimes conditions are not amenable to measurements using this technique. Thus, different methods have b…

Supplementary Dataset for "Representativeness of Eddy-Covariance Flux Footprints for Areas Surrounding AmeriFlux Sites" Open

Housen Chu, Xiangzhong Luo, Zutao Ouyang, Stephen Chan, Sigrid Dengel , et al. · 2020

Environmental science Geography Mathematics

These datasets are supplementary to the paper "Representativeness of Eddy-Covariance Flux Footprints for Areas Surrounding AmeriFlux Sites" by Chu et al. Dataset S1. Summary of site-specific footprint metrics filename: All_site_fpt_summary…

Supplementary Dataset for "Representativeness of Eddy-Covariance Flux Footprints for Areas Surrounding AmeriFlux Sites" Open

Housen Chu, Xiangzhong Luo, Zutao Ouyang, Stephen Chan, Sigrid Dengel , et al. · 2020

Environmental science Geography Mathematics

These datasets are supplementary to the paper "Representativeness of Eddy-Covariance Flux Footprints for Areas Surrounding AmeriFlux Sites" by Chu et al. Dataset S1. Summary of site-specific footprint metrics filename: All_site_fpt_summary…

IRRIGATED AND RAINFED CROPS Zea mays L. (MAIZE) AND Glycine max (SOYBEAN) ACTING AS A SOURCE OR SINK FOR ATMOSPHERIC WARMING AT MEAD, NEBRASKA Open

Jane Okalebo, Kenneth G. Hubbard, Andy Suyker · 2016

Environmental science Biology

Land Use and Land Cover Change (LULCC) influence the climate at a global and local scale. Using long term microclimate data (2002-2009, 2011-2012) from the Carbon Sequestration Project (CSP), Mead, NE, this study examines how crop selectio…

FLUXNET2015 US-Ne2 Mead - irrigated maize-soybean rotation site Open

Andy Suyker · 2016

Geography Biology Mathematics

This is the FLUXNET2015 version of the carbon flux data for the site US-Ne2 Mead - irrigated maize-soybean rotation site.

AmeriFlux US-Ne3 Mead - rainfed maize-soybean rotation site Open

Andy Suyker · 2016

Geography Biology

This is the AmeriFlux version of the carbon flux data for the site US-Ne3 Mead - rainfed maize-soybean rotation site. Site Description - The study site is one of three fields (all located within 1.6 km of each other) at the University of N…

AmeriFlux US-Ne2 Mead - irrigated maize-soybean rotation site Open

Andy Suyker · 2016

Biology Mathematics

This is the AmeriFlux version of the carbon flux data for the site US-Ne2 Mead - irrigated maize-soybean rotation site. Site Description - The study site is one of three fields (all located within 1.6 km of each other) at the University of…

AmeriFlux US-Ne1 Mead - irrigated continuous maize site Open

Andy Suyker · 2016

Geography

This is the AmeriFlux version of the carbon flux data for the site US-Ne1 Mead - irrigated continuous maize site. Site Description - The study site is one of three fields (all located within 1.6 km of each other) at the University of Nebra…

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