David M. Johnson

ORCID: 0000-0002-1505-6723
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About
Contact & Profiles
Research Areas
  • Remote Sensing in Agriculture
  • Classical Philosophy and Thought
  • Land Use and Ecosystem Services
  • Remote Sensing and LiDAR Applications
  • Classical Antiquity Studies
  • Remote Sensing and Land Use
  • Plant Water Relations and Carbon Dynamics
  • Cerebrovascular and Carotid Artery Diseases
  • Intracranial Aneurysms: Treatment and Complications
  • Caribbean history, culture, and politics
  • Geotechnical Engineering and Underground Structures
  • Railway Engineering and Dynamics
  • Spinal Fractures and Fixation Techniques
  • Soil and Water Nutrient Dynamics
  • High-Temperature Coating Behaviors
  • Virtual Reality Applications and Impacts
  • Migration, Ethnicity, and Economy
  • Hearing Loss and Rehabilitation
  • Philosophy and History of Science
  • Aerospace and Aviation Technology
  • Spine and Intervertebral Disc Pathology
  • Structural Health Monitoring Techniques
  • Infrastructure Maintenance and Monitoring
  • Urban Heat Island Mitigation
  • Acute Ischemic Stroke Management

National Agricultural Statistics Service
2014-2024

United States Department of Agriculture
2012-2024

University of Oxford
2024

Southern Illinois University Carbondale
2008-2021

Seascape Consultants (United Kingdom)
2016-2020

Mayo Clinic
1990-2017

University of Pittsburgh Medical Center
2017

WinnMed
2017

Mayo Clinic in Arizona
2005-2016

Ferrum College
1990-2013

Landsat 8, a NASA and USGS collaboration, acquires global moderate-resolution measurements of the Earth's terrestrial polar regions in visible, near-infrared, short wave, thermal infrared. 8 extends remarkable 40 year record has enhanced capabilities including new spectral bands blue cirrus cloud-detection portion spectrum, two bands, improved sensor signal-to-noise performance associated improvements radiometric resolution, an duty cycle that allows collection significantly greater number...

10.1016/j.rse.2014.02.001 article EN cc-by-nc-sa Remote Sensing of Environment 2014-03-04

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 four decades since 1972 launch Landsat-1, program is increasingly complex vibrant. Critical programmatic elements are ensuring continuity high quality measurements scientific operational investigations, including ground systems, acquisition planning, archiving management, provision analysis ready products. Free open access to...

10.1016/j.rse.2019.02.015 article EN cc-by Remote Sensing of Environment 2019-03-11

Since 1972, the Landsat program has been continually monitoring Earth, to now provide 50 years of digital, multispectral, medium spatial resolution observations. Over this time, data were crucial for many scientific and technical advances. Prior program, detailed, synoptic depictions Earth's surface rare, ability acquire work with large datasets was limited. The early delivered a series technological breakthroughs, pioneering new methods, demonstrating capacity digital satellite imagery,...

10.1016/j.rse.2022.113195 article EN cc-by Remote Sensing of Environment 2022-07-28

We recently found that vibratory detection threshold is greatly influenced by the algorithm of testing. Here, we study influence stimulus characteristics and testing estimating on cool (CDT), warm (WDT), heat-pain (HPDT) thresholds. show continuously decreasing (for CDT) or increasing WDT) thermode temperature to point at which cooling warming perceived signaled depressing a response key (“appearance” threshold) overestimates with rapid rates thermal change. The mean appearance disappearance...

10.1212/wnl.43.8.1500 article EN Neurology 1993-08-01

Monitoring agricultural land is important for understanding and managing food production, environmental conservation efforts, climate change. The United States Department of Agriculture's Cropland Data Layer (CDL), an annual satellite imagery-derived cover map, has been increasingly used this application since complete coverage the conterminous became available in 2008. However, CDL designed produced with intent mapping rather than tracking changes over time, as a result certain precautions...

10.1016/j.jag.2017.06.007 article EN cc-by International Journal of Applied Earth Observation and Geoinformation 2017-07-14

10.1016/j.jag.2016.05.010 article EN publisher-specific-oa International Journal of Applied Earth Observation and Geoinformation 2016-06-09

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. use medium (10–100 for estimation field scales limited due to low temporal sampling frequency characteristics these sensors. Temporal a can be significantly improved, however, when multiple sources are used combination. Furthermore, fusion approaches have developed blend from different spatial and resolutions. This paper investigates...

10.3390/rs10091489 article EN cc-by Remote Sensing 2018-09-18

10.1016/j.rse.2021.112576 article EN publisher-specific-oa Remote Sensing of Environment 2021-07-03

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 Imaging Spectroradiometer (MODIS), and Visible Infrared Suite (VIIRS) have shown to be useful for efficiently generating timely synoptic information on the status of crops across regional levels. However, coarse spatial resolution data inherent these sensors provides little...

10.3390/rs13050872 article EN cc-by Remote Sensing 2021-02-26

Subjects worked on a problem, engaged in an intervening activity, and then resumed work the problem. Different activities represented various mechanisms that might produce incubation (e.g., set breaking, facilitation by analogy, review of problem's elements). These treatment groups were compared to control group problem continuously. None them showed evidence incubation, despite previously reported with same Since these systematically negative findings are consistent those several recent...

10.2307/1421461 article EN The American Journal of Psychology 1976-12-01

This paper presents an intercomparative study of 12 operationally produced large-scale datasets describing soil moisture, evapotranspiration (ET), and/or vegetation characteristics within agricultural regions the contiguous United States (CONUS). These have been developed using a variety techniques, including, hydrologic modeling, satellite-based retrievals, data assimilation, and survey/in-field collection. The objectives are to assess relative utility each dataset for monitoring crop yield...

10.1109/jstars.2016.2639338 article EN IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2017-01-09

10.1016/j.rse.2019.111286 article EN publisher-specific-oa Remote Sensing of Environment 2019-07-03
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