- Impact of Light on Environment and Health
- Remote Sensing in Agriculture
- Atmospheric and Environmental Gas Dynamics
- Land Use and Ecosystem Services
- Oil, Gas, and Environmental Issues
- Infrared Target Detection Methodologies
- Remote-Sensing Image Classification
- Urban Transport and Accessibility
- Urban Heat Island Mitigation
- Remote Sensing and Land Use
- Fire effects on ecosystems
- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Remote Sensing and LiDAR Applications
- Coral and Marine Ecosystems Studies
- Marine animal studies overview
- Circadian rhythm and melatonin
- Geochemistry and Geologic Mapping
- Calibration and Measurement Techniques
- Optical Wireless Communication Technologies
- Marine and fisheries research
- Spacecraft and Cryogenic Technologies
- Human Mobility and Location-Based Analysis
- Soil Geostatistics and Mapping
- Atmospheric aerosols and clouds
Colorado School of Mines
2019-2024
NOAA Earth System Research Laboratory
2018-2023
East China Normal University
2020
NOAA National Centers for Environmental Information
2015-2019
National Oceanic and Atmospheric Administration
2009-2018
Stanford University
1982-2018
Government of the United States of America
2017
NOAA National Environmental Satellite Data and Information Service
2002-2016
Cooperative Institute for Research in Environmental Sciences
2013
Geophysical Center
2011
Artificial lights raise night sky luminance, creating the most visible effect of light pollution-artificial skyglow. Despite increasing interest among scientists in fields such as ecology, astronomy, health care, and land-use planning, pollution lacks a current quantification its magnitude on global scale. To overcome this, we present world atlas artificial computed with our propagation software using new high-resolution satellite data precision brightness measurements. This shows that more...
We have produced annual estimates of national and global gas flaring efficiency from 1994 through 2008 using low light imaging data acquired by the Defense Meteorological Satellite Program (DMSP). Gas is a widely used practice for disposal associated in oil production processing facilities where there insufficient infrastructure utilization (primarily methane). Improved key to reducing carbon emissions atmosphere. The DMSP flared volume are based on calibration developed with pooled set...
The area lit by anthropogenic visible-near infrared emissions (i.e., lights) has been estimated for 21 countries using night-time data from the Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS). is highly correlated to gross domestic product and electric power consumption. Significant outliers exist in relation between population. results indicate that local level of economic development must be factored into apportionment population across land surface based...
The Visible Infrared Imaging Radiometer Suite (VIIRS) Day/Night Band (DNB) collects global low-light imaging data that have significant improvements over comparable collected for 40 years by the DMSP Operational Linescan System. One of prominent features DNB is detection electric lighting present on Earth's surface. Most these lights are from human settlements. VIIRS source could be used to generate monthly and annual science grade radiance maps settlements with lighting. There a substantial...
Earth’s artificially lit area is expanding at 2.2% per year, with existing areas brightening by year.
For more than forty years the U.S. Air Force Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) has been only satellite system collecting global low-light imaging data. A series of twenty-four DMSP satellites have collected The design OLS not changed significantly since F-4 flew in late 1970’s and data relatively coarse spatial resolution, limited dynamic range, lack in-flight calibration. In 2011 NASA NOAA launched Suomi National Polar Partnership (SNPP)...
Abstract Laboratory reflectance spectra of dry plant materials are distinctly different from green materials. The have diagnostic ligno-cellulose absorption features at 2·09 and in the 2·3μm region. visible portion spectrum is dominated by an wing produced intense blue UV absorption. This breaks down as decay progresses.
We present the first World Atlas of zenith artificial night sky brightness at sea level. Based on radiance-calibrated high-resolution DMSP satellite data and accurate modelling light propagation in atmosphere, it provides a nearly global picture how mankind is proceeding to envelop itself luminous fog. Comparing with United States Department Energy (DOE) population density base, we determined fraction who are living under given brightness. About two-thirds 99 per cent (excluding Alaska...
Night-time satellite imagery provided by the Defense Meteorological Satellite Program's Operational Linescan System (DMSP OLS) is evaluated as a means of estimating population all cities world based on their areal extent in image. A global night-time image product was registered to dataset 2000 known city locations with populations. relationship between and discovered Tobler Nordbeck identified nation basis estimate 22 920 urban clusters that exist The derived from 1597 point landed 'lit'...
We present the first global inventory of spatial distribution and density ofconstructed impervious surface area (ISA). Examples ISA include roads, parking lots,buildings, driveways, sidewalks other manmade surfaces. While high spatialresolution is required to observe these features, new product reports estimateddensity on a one-km² grid based two coarse resolution indicators - thebrightness satellite observed nighttime lights population count. The model wascalibrated using 30-meter USA from...
A consistently processed annual global nighttime lights time series (2012–2019) was produced using monthly cloud-free radiance averages made from low light imaging day/night band (DNB) data collected by the NASA/NOAA Visible Infrared Imaging Radiometer Suite (VIIRS). The processing steps are modified original methods developed to produce products nightly data. Only two years of VIIRS (VNL) were with V.1 methods: 2015 and 2016. Here we report on used a V.2 VNL filtering remove extraneous...
A set of methods are presented for the global survey natural gas flaring using data collected by National Aeronautics and Space Administration/National Oceanic Atmospheric Administration NASA/NOAA Visible Infrared Imaging Radiometer Suite (VIIRS). The accuracy flared volume estimates is rated at ±9.5%. VIIRS particularly well suited detecting measuring radiant emissions from flares through collection shortwave near-infrared night, recording peak flares. In 2012, a total 7467 individual flare...