David M. Johnson
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View article: Hydro-Topographic Contribution to In-Field Crop Yield Variation Using High-Resolution Surface and GPR-Derived Subsurface DEMs
Hydro-Topographic Contribution to In-Field Crop Yield Variation Using High-Resolution Surface and GPR-Derived Subsurface DEMs Open
Understanding spatial variability in crop yields across fields is critical for developing precision agricultural strategies that optimize productivity while reducing negative environmental impacts. This variability often arises from a comp…
View article: On the Use of SMAP Soil Moisture for Forecasting NDVI Over CONUS Cropland Regions
On the Use of SMAP Soil Moisture for Forecasting NDVI Over CONUS Cropland Regions Open
Vegetation health forecasting (NDVI as a proxy) informs decision‐makers about the end of season crop yield productivity but is not well‐documented. This study tests improvements in vegetation health forecasting by developing a data‐driven …
View article: Real-time water quality forecasting in rivers using satellite data and dynamic models: an online system for operational management, control and citizen science
Real-time water quality forecasting in rivers using satellite data and dynamic models: an online system for operational management, control and citizen science Open
Increasingly scarce water resources and growing global populations have exacerbated the problems of water quality in river systems and freshwaters in general. New monitoring methodologies and tools to democratize access to water quality in…
View article: Precision Rehabilitation After Neurostimulation Implantation for Multifidus Dysfunction in Nociceptive Mechanical Chronic Low Back Pain
Precision Rehabilitation After Neurostimulation Implantation for Multifidus Dysfunction in Nociceptive Mechanical Chronic Low Back Pain Open
Chronic low back pain (CLBP) is a debilitating, painful, and costly condition. Implantable neuromuscular electrical stimulation targeting the multifidus musculature is growing as a non-pharmacologic option for patients with recalcitrant no…
View article: Need and vision for global medium-resolution Landsat and Sentinel-2 data products
Need and vision for global medium-resolution Landsat and Sentinel-2 data products Open
Global changes in climate and land use are threatening natural ecosystems, biodiversity, and the ecosystem services people rely on. This is why it is necessary to track and monitor spatiotemporal change at a level of detail that can inform…
View article: Fifty years of Landsat science and impacts
Fifty years of Landsat science and impacts Open
Since 1972, the Landsat program has been continually monitoring the Earth, to now provide 50 years of digital, multispectral, medium spatial resolution observations. Over this time, Landsat data were crucial for many scientific and technic…
View article: Towards Routine Mapping of Crop Emergence within the Season Using the Harmonized Landsat and Sentinel-2 Dataset
Towards Routine Mapping of Crop Emergence within the Season Using the Harmonized Landsat and Sentinel-2 Dataset Open
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…
View article: USA Crop Yield Estimation with MODIS NDVI: Are Remotely Sensed Models Better than Simple Trend Analyses?
USA Crop Yield Estimation with MODIS NDVI: Are Remotely Sensed Models Better than Simple Trend Analyses? Open
Crop yield forecasting is performed monthly during the growing season by the United States Department of Agriculture’s National Agricultural Statistics Service. The underpinnings are long-established probability surveys reliant on farmers’…
View article: Assessing within-Field Corn and Soybean Yield Variability from WorldView-3, Planet, Sentinel-2, and Landsat 8 Satellite Imagery
Assessing within-Field Corn and Soybean Yield Variability from WorldView-3, Planet, Sentinel-2, and Landsat 8 Satellite Imagery Open
Crop yield monitoring is an important component in agricultural assessment. Multi-spectral remote sensing instruments onboard space-borne platforms such as Advanced Very High Resolution Radiometer (AVHRR), Moderate Resolution Imaging Spect…
View article: Marine spatial planning in areas beyond national jurisdiction
Marine spatial planning in areas beyond national jurisdiction Open
Pressure on marine areas beyond national jurisdiction (ABNJ) has increased significantly in recent decades, yet the current international legal framework does not provide for holistic and cross-sectoral area-based management. Negotiations …
View article: Remote Sensing of Environment: Current status of Landsat program, science, and applications
Remote Sensing of Environment: Current status of Landsat program, science, and applications Open
Formal planning and development of what became the first Landsat satellite commenced over 50 years ago in 1967. Now, having collected earth observation data for well over four decades since the 1972 launch of Landsat- 1, the Landsat progra…
View article: Assessing the Variability of Corn and Soybean Yields in Central Iowa Using High Spatiotemporal Resolution Multi-Satellite Imagery
Assessing the Variability of Corn and Soybean Yields in Central Iowa Using High Spatiotemporal Resolution Multi-Satellite Imagery Open
The utility of remote sensing data in crop yield modeling has typically been evaluated at the regional or state level using coarse resolution (>250 m) data. The use of medium resolution data (10–100 m) for yield estimation at field scales …
View article: Fusion of Moderate Resolution Earth Observations for Operational Crop Type Mapping
Fusion of Moderate Resolution Earth Observations for Operational Crop Type Mapping Open
Crop type inventory and within season estimates at moderate (85%) accuracies and the ability to provide insight on crop location and extent within the crop season. HLS fused with S1 had, at times, a higher accuracy (5–10% relative overall …
View article: Measuring land-use and land-cover change using the U.S. department of agriculture’s cropland data layer: Cautions and recommendations
Measuring land-use and land-cover change using the U.S. department of agriculture’s cropland data layer: Cautions and recommendations Open
Monitoring agricultural land is important for understanding and managing food production, environmental conservation efforts, and climate change. The United States Department of Agriculture's Cropland Data Layer (CDL), an annual satellite …
View article: Relationships between the evaporative stress index and winter wheat and spring barley yield anomalies in the Czech Republic
Relationships between the evaporative stress index and winter wheat and spring barley yield anomalies in the Czech Republic Open
CR Climate Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials CR 70:215-230 (2016) - DOI: https://doi.org/10.3354/cr01411 Relationshi…