John Barnes
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View article: Transport of Hunga aerosol to the NH and the 2023 aerosol induced bump in stratospheric water vapor
Transport of Hunga aerosol to the NH and the 2023 aerosol induced bump in stratospheric water vapor Open
A global network of soundings tracked stratospheric water vapor (H2O) and aerosol enhancements for two years after the explosive eruption of the submarine Hunga volcano in January 2022. Balloon-borne measurements highlight the importance o…
View article: The Recovery and Re-Calibration of a 13-Month Aerosol Extinction Profiles Dataset from Searchlight Observations from New Mexico, after the 1963 Agung Eruption
The Recovery and Re-Calibration of a 13-Month Aerosol Extinction Profiles Dataset from Searchlight Observations from New Mexico, after the 1963 Agung Eruption Open
The recovery and re-calibration of a dataset of vertical aerosol extinction profiles of the 1963/64 stratospheric aerosol layer measured by a searchlight at 32° N in New Mexico, US, is reported. The recovered dataset consists of 105 aeroso…
Study of Atmospheric Aerosols in The Bahamas Using Camera Lidar and Star Photometry Techniques Open
Aerosols, the tiny suspended particles in the atmosphere, are a widely studied topic around the world due to their effects on the Earth’s radiation budget, climate change, and human health. Knowledge of the spatial and temporal distributio…
View article: Global Climate
Global Climate Open
Air temperature measurements have been made onboard ships for centuries and continue to be collected today thanks to the Voluntary Observing Ship initiative (https://www.ocean-ops.org/reportcard2022/). Gridded datasets of marine air temper…
View article: Introduction
Introduction Open
—J. BLUNDEN, T. BOYER, AND E. BARTOW-GILLIES Earth’s global climate system is vast, complex, and intricately interrelated. Many areas are influenced by global-scale phenomena, including the “triple dip” La Niña conditions that prevailed in…
Global perturbation of stratospheric water and aerosol burden by Hunga eruption Open
The eruption of the submarine Hunga volcano in January 2022 was associated with a powerful blast that injected volcanic material to altitudes up to 58 km. From a combination of various types of satellite and ground-based observations suppo…
Comment on essd-2022-272 Open
Abstract. We report the recovery and re-calibration of an extensive dataset of vertical profile measurements of the 1963/64 stratospheric aerosol layer measured from a two-site searchlight measurement facility at White Sands missile base a…
View article: The recovery and re-calibration of a 13-month aerosol extinction profiles dataset from searchlight observations from New Mexico, after the 1963 Agung eruption
The recovery and re-calibration of a 13-month aerosol extinction profiles dataset from searchlight observations from New Mexico, after the 1963 Agung eruption Open
We report the recovery and re-calibration of an extensive dataset of vertical profile measurements of the 1963/64 stratospheric aerosol layer measured from a two-site searchlight measurement facility at White Sands missile base and Sacrame…
View article: Global perturbation of stratospheric water and aerosol burden by Hunga eruption
Global perturbation of stratospheric water and aerosol burden by Hunga eruption Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at Other. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints prep…
View article: Recovery of the first ever multi-year lidar dataset of the stratospheric aerosol layer, from Lexington, MA, and Fairbanks, AK, January 1964 to July 1965
Recovery of the first ever multi-year lidar dataset of the stratospheric aerosol layer, from Lexington, MA, and Fairbanks, AK, January 1964 to July 1965 Open
We report the recovery and processing methodology of the first ever multi-year lidar dataset of the stratospheric aerosol layer. A Q-switched ruby lidar measured 66 vertical profiles of 694 nm attenuated backscatter at Lexington, Massachus…
Evaluation of Novel NASA Moderate Resolution Imaging Spectroradiometer and Visible Infrared Imaging Radiometer Suite Aerosol Products and Assessment of Smoke Height Boundary Layer Ratio During Extreme Smoke Events in the Western USA Open
We analyze new aerosol products from NASA satellite retrievals over the western USA during August 2013, with special attention to locally generated wildfire smoke and downwind plume structures. Aerosol optical depth (AOD) at 550 nm from MO…
Persistent Stratospheric Warming Due to 2019–2020 Australian Wildfire Smoke Open
Australian wildfires burning from December 2019 to January 2020 injected approximately 0.9 Tg of smoke into the stratosphere; this is the largest amount observed in the satellite era. A comparison of numerical simulations to satellite obse…
View article: Data rescue of stratospheric aerosol observations from lidar at Lexington, MA, and Fairbanks, AK, January 1964 to July 1965.
Data rescue of stratospheric aerosol observations from lidar at Lexington, MA, and Fairbanks, AK, January 1964 to July 1965. Open
We report the recovery and processing methodology of the first ever multi-year lidar dataset of the stratospheric aerosol layer. A Q-switched Ruby lidar measured 66 vertical profiles of 694nm attenuated backscatter at Lexington, Massachuse…
Monitoring Atmospheric Pollution with Laser Imaging Open
Lidar (Light Detection and Ranging) is a laser-based remote sensing tool that can measure the concentration of small particles, called aerosols, in the atmosphere. Monitoring aerosols is crucial for climate modelling, air quality measureme…
Recovery of the first ever multi-year lidar dataset of thestratospheric aerosol layer, from Lexington, MA, and Fairbanks,AK, January 1964 to July 1965 Open
We report the recovery and processing methodology of the first ever multi-year lidar dataset of the stratospheric aerosol layer. A Q-switched Ruby lidar measured 66 vertical profiles of 694 nm attenuated backscatter at Lexington, Massachus…
Long-term (1999–2019) variability of stratospheric aerosol over Mauna Loa, Hawaii, as seen by two co-located lidars and satellite measurements Open
As part of the Network for the Detection of Atmospheric Composition Change (NDACC), ground-based measurements obtained from the Jet Propulsion Laboratory (JPL) stratospheric ozone lidar and the NOAA stratospheric aerosol lidar at Mauna Loa…
Long-term (1999–2019) variability of stratospheric aerosol over Mauna Loa, Hawaii, as seen by two co-located lidars and satellite measurements Open
As part of the Network for the Detection of Atmospheric Composition Change (NDACC), ground-based measurements obtained from the Jet Propulsion Laboratory (JPL) stratospheric ozone lidar and the NOAA stratospheric aerosol lidar at Mauna Loa…
Lidar validation measurements at the NOAA Mauna Loa Observatory NDACC Station Open
NASA’s Goddard Space Flight Center (GSFC) transported two lidar instruments to the NOAA facility at the Mauna Loa Observatory (MLO) on the Big Island of Hawaii, to participate in an official, extended validation campaign. This site is situ…
Using a CCD camera lidar system for detection of Asian dust Open
During intense spring and early summer storms, substantial volumes of dust from east Asian desert regions are lofted over the continent and transported by prevailing winds across the Pacific Ocean. The phenomenon has wide reaching effects …
Monsoon circulations and tropical heterogeneous chlorine chemistry in the stratosphere Open
Model simulations presented in this paper suggest that transport processes associated with the summer monsoons bring increased abundances of hydrochloric acid into contact with liquid sulfate aerosols in the cold tropical lowermost stratos…
Stratospheric aerosol-Observations, processes, and impact on climate Open
Interest in stratospheric aerosol and its role in climate have increased over the last decade due to \nthe observed increase in stratospheric aerosol since 2000 and the potential for changes in the sulfur cycle \ninduced by climate change.…
Results of a Longer Term NDACC Measurements Comparison Campaign at Mauna Loa Observatory Open
Between November, 2015 and January, 2015, the Goddard Space Flight Center (GSFC) operated a pair of lidar instruments at the NOAA (National Oceanic and Atmospheric Administration) facility at Mauna Loa on the Big Island of Hawaii (Latitude…
Measuring Aerosol Optical Depth (AOD) and Aerosol Profiles Simultaneously with a Camera Lidar Open
\nCLidar or camera lidar is a simple, inexpensive technique to measure nighttime tropospheric aerosol profiles. Stars in the raw data images used in the CLidar analysis can also be used to calculate aerosol optical depth simultaneously. A …
Clidar Mountain Boundary Layer Case Studies Open
\nA CCD Camera Lidar system called the CLidar system images a vertically pointing laser from the side with a spatially separated CCD camera and wide angle optics. The system has been used to investigate case studies of aerosols in mountain…