Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where K. W. Dawson is active.

Publication


Featured researches published by K. W. Dawson.


Journal of Geophysical Research | 2017

Creating Aerosol Types from CHemistry (CATCH): A New Algorithm to Extend the Link Between Remote Sensing and Models

K. W. Dawson; Nicholas Meskhidze; Sharon Burton; Matthew S. Johnson; Meloe Kacenelenbogen; Chris A. Hostetler; Yongxiang Hu

Current remote sensing methods can identify aerosol types within an atmospheric column, presenting an opportunity to incrementally bridge the gap between remote sensing and models. Here a new algorithm was designed for Creating Aerosol Types from CHemistry (CATCH). CATCH-derived aerosol types—dusty mix, maritime, urban, smoke, and fresh smoke—are based on first-generation airborne High Spectral Resolution Lidar (HSRL-1) retrievals during the Ship-Aircraft Bio-Optical Research (SABOR) campaign, July/August 2014. CATCH is designed to derive aerosol types from model output of chemical composition. CATCH-derived aerosol types are determined by multivariate clustering of model-calculated variables that have been trained using retrievals of aerosol types from HSRL-1. CATCH-derived aerosol types (with the exception of smoke) compare well with HSRL-1 retrievals during SABOR with an average difference in aerosol optical depth (AOD) <0.03. Data analysis shows that episodic free tropospheric transport of smoke is underpredicted by the Goddard Earth Observing System- with Chemistry (GEOS-Chem) model. Spatial distributions of CATCH-derived aerosol types for the North American model domain during July/August 2014 show that aerosol type-specific AOD values occurred over representative locations: urban over areas with large population, maritime over oceans, smoke, and fresh smoke over typical biomass burning regions. This study demonstrates that model-generated information on aerosol chemical composition can be translated into aerosol types analogous to those retrieved from remote sensing methods. In the future, spaceborne HSRL-1 and CATCH can be used to gain insight into chemical composition of aerosol types, reducing uncertainties in estimates of aerosol radiative forcing.


Aeolian Research | 2016

Influence of measurement uncertainties on fractional solubility of iron in mineral aerosols over the oceans

Nicholas Meskhidze; Matthew S. Johnson; David Hurley; K. W. Dawson


Journal of Geophysical Research | 2017

Aerosol Properties Observed in the Subtropical North Pacific Boundary Layer

T. M. Royalty; B. N. Phillips; K. W. Dawson; Robert E. Reed; Nicholas Meskhidze; Markus D. Petters


Journal of Geophysical Research | 2018

Hygroscopicity- and Size-Resolved Measurements of Submicron Aerosol on the East Coast of the United States.

B. N. Phillips; T. M. Royalty; K. W. Dawson; Robert E. Reed; Markus D. Petters; Nicholas Meskhidze


Aerosol Science and Technology | 2018

Continuous flow hygroscopicity-resolved relaxed eddy accumulation (Hy-Res REA) method of measuring size-resolved sodium chloride particle fluxes

Nicholas Meskhidze; T. M. Royalty; B. N. Phillips; K. W. Dawson; Markus D. Petters; Robert E. Reed; Jason P. Weinstein; D. A. Hook; R. W. Wiener


Journal of Geophysical Research | 2017

Aerosol Properties Observed in the Subtropical North Pacific Boundary Layer: Aerosol Properties in the North Pacific MBL

T. M. Royalty; B. N. Phillips; K. W. Dawson; Robert E. Reed; Nicholas Meskhidze; Markus D. Petters


Journal of Geophysical Research | 2017

Creating Aerosol Types from CHemistry (CATCH): A New Algorithm to Extend the Link Between Remote Sensing and Models: Creating Aerosol Types From CHemistry

K. W. Dawson; Nicholas Meskhidze; Sharon Burton; Matthew S. Johnson; Meloe Kacenelenbogen; Chris A. Hostetler; Yongxiang Hu


Archive | 2016

Linking Remotely Sensed Aerosol Types to Their Chemical Composition

K. W. Dawson; Meloe Kacenelenbogen; Matthew S. Johnson; Sharon Burton; Chris A. Hostetler; Nicholas Meskhidze


Journal of Geophysical Research | 2016

Hygroscopic growth and cloud droplet activation of xanthan gum as a proxy for marine hydrogels: HYGROSCOPICITY OF XG AS MARINE HYDROGEL

K. W. Dawson; Markus D. Petters; Nicholas Meskhidze; S. Suda Petters; Sonia M. Kreidenweis


Biogeosciences Discussions | 2015

Influence of measurement uncertainties on soluble aerosol iron over the oceans

Nicholas Meskhidze; Matthew S. Johnson; David Hurley; K. W. Dawson

Collaboration


Dive into the K. W. Dawson's collaboration.

Top Co-Authors

Avatar

Nicholas Meskhidze

North Carolina State University

View shared research outputs
Top Co-Authors

Avatar

Markus D. Petters

North Carolina State University

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

B. N. Phillips

North Carolina State University

View shared research outputs
Top Co-Authors

Avatar

Robert E. Reed

North Carolina State University

View shared research outputs
Top Co-Authors

Avatar

T. M. Royalty

North Carolina State University

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

David Hurley

North Carolina State University

View shared research outputs
Researchain Logo
Decentralizing Knowledge