Observations and Numerical Simulation of the Effects of the 21 August 2017 North American Total Solar Eclipse on Surface Conditions and Atmospheric Boundary-Layer Evolution

Buban, Michael S.; Lee, Temple R.; Dumas, Edward J.; Baker, C. Bruce; Heuer, Mark

doi:10.1007/s10546-018-00421-4

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Observations and Numerical Simulation of the Effects of the 21 August 2017 North American Total Solar Eclipse on Surface Conditions and Atmospheric Boundary-Layer Evolution

2019
By Buban, Michael S. ; Lee, Temple R. ; Dumas, Edward J. ; ...
Source: Boundary-Layer Meteorology, 171(2), 257-270.

[PDF-3.93 MB]

Details You May Also Like

Details:

Journal Title:

Boundary-Layer Meteorology
Personal Author:

Buban, Michael S. ; Lee, Temple R. ; Dumas, Edward J. ; Baker, C. Bruce ; Heuer, Mark

Buban, Michael S. ; Lee, Temple R. ; Dumas, Edward J. ; Baker, C. Bruce ; Heuer, Mark Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; ARL (Air Resources Laboratory) ; CIMMS (Cooperative Institute for Mesoscale Meteorological Studies)

OAR (Oceanic and Atmospheric Research) ; ARL (Air Resources Laboratory) ; CIMMS (Cooperative Institute for Mesoscale Meteorological Studies) Less -
Description:

We present unique observations of a total solar eclipse from a small unmanned aircraft system (sUAS) platform that was operated during the 21 August 2017 North American solar eclipse. The observations were collected near Ten Mile, Tennessee, where eclipse totality lasted 2 min 38 s. A 2-m micrometeorological tripod was erected on-site to measure surface and air temperature, near-surface water vapour, incoming and outgoing shortwave and longwave radiative fluxes, and turbulent fluxes. The sUAS platform and micrometeorological tripod observations indicate significant cooling below a height of 50 m above ground level (a.g.l.) during and shortly after totality. Near-surface temperatures do not return to pre-eclipse values until about 60 min following totality. Above about 50 m a.g.l., smaller temperature changes are observed during the eclipse, as the duration of the eclipse has less influence on deeper boundary-layer turbulence. Additionally, the sensible heat flux becomes slightly negative around totality, and the turbulence kinetic energy and vertical velocity variance concurrently decrease. The evolution of the near-surface meteorological fields are investigated in more detail using a large-eddy simulation (LES) model. The simulations generally reproduce the observations well, in terms of the timing and magnitude of changes in temperature, moisture and sensible and latent heat fluxes. However, the LES model slightly underestimates the diurnal range and decrease in temperature during the eclipse while overestimating the sensible heat fluxes.
Source:

Boundary-Layer Meteorology, 171(2), 257-270.
DOI:

https://doi.org/10.1007/s10546-018-00421-4
Document Type:

Journal Article
Rights Information:

Accepted Manuscript
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:45ffdc2f7ecf4f47cb05053f3fcc29b87fffe1b05843b615d8afac7b46e7814f
Download URL:

https://repository.library.noaa.gov/view/noaa/25541/noaa_25541_DS1.pdf
File Type:

No Additional Files

More +

Observations and Numerical Simulation of the Effects of the 21 August 2017 North American Total Solar Eclipse on Surface Conditions and Atmospheric Boundary-Layer Evolution

Details:

Supporting Files

You May Also Like