File:This instrument, called a nephelometer, measures light scattering in real-time. These data provide a precise measurement of how (9362f30b-7b8c-4c4a-8192-bfae689ce713).jpg

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English: Light Scattering
Photographer
English: Mary O'Neill
Title
English: Light Scattering
Description
English:

View of the nephelometer, a gray machine with wires and a white cylinder, from below.

This instrument, called a nephelometer, measures light scattering in real-time. These data provide a precise measurement of how air pollution affects what you can see every minute of the day! The National Park Service uses this information to help make decisions about how to preserve the beautiful views in parks. Similar instruments are used at airports to ensure that pilots can fly safely. The visibility distances (visual ranges) shown on the Shenandoah National Park webcam webpage and live data webpage are calculated using nephelometer data.
Depicted place
English: Shenandoah National Park, Virginia
Date Taken on 31 July 2018
Accession number
9362f30b-7b8c-4c4a-8192-bfae689ce713
Source
English: NPGallery
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
Collector
InfoField
English: Mary O'Neill
NPS Unit Code
InfoField
SHEN
Album(s)
InfoField
English: Air Quality Station Equipment

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current00:11, 17 September 2019Thumbnail for version as of 00:11, 17 September 20192,000 × 1,333 (490 KB)BMacZeroBot (talk | contribs)Batch upload (Commons:Batch uploading/NPGallery)

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