80
February 2019
PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING
PHOTOGRAMMETRIC ENGINEERING
& REMOTE SENSING
J
ournal
S
taff
Publisher ASPRS
Editor-In-Chief Alper Yilmaz
Assistant Editor Jie Shan
Managing Editor Melissa J. Porterfield
Assistant Director — Publications Rae Kelley
Electronic Publications Manager/Graphic Artist Matthew Austin
Photogrammetric Engineering & Remote Sensing
is the official journal
of the American Society for Photogrammetry and Remote Sensing. It is
devoted to the exchange of ideas and information about the applications of
photogrammetry, remote sensing, and geographic information systems. The
technical activities of the Society are conducted through the following Technical
Divisions: Geographic Information Systems, Photogrammetric Applications,
Lidar, Primary Data Acquisition, Professional Practice, and Remote Sensing
Applications. Additional information on the functioning of the Technical
Divisions and the Society can be found in the Yearbook issue of
PE&RS.
Correspondence relating to all business and editorial matters pertaining to this
and other Society publications should be directed to the American Society for
Photogrammetry and Remote Sensing, 425 Barlow Place, Suite 210, Bethesda,
Maryland 20814-2144, including inquiries, memberships, subscriptions,
changes in address, manuscripts for publication, advertising, back issues,
and publications. The telephone number of the Society Headquarters is 301-
493-0290; the fax number is 225-408-4422; web address is
.
PE&RS.
PE&RS
(ISSN0099-1112) is published monthly by the American
Society for Photogrammetry and Remote Sensing, 425 Barlow Place, Suite
210, Bethesda, Maryland 20814-2144. Periodicals postage paid at Bethesda,
Maryland and at additional mailing offices.
SUBSCRIPTION.
For the 2019 subscription year, ASPRS is offering two options
to our
PE&RS
subscribers — an e-Subscription and the print edition.
E-subscribers can plus-up their subscriptions with printed copies for a small
additional charge. Print and Electronic subscriptions are on a calendar-year
basis that runs from January through December. We recommend that custom-
ers who choose both e-Subscription and print (e-Subscription + Print) renew
on a calendar-year basis. The new electronic subscription includes access to
ten years of digital back issues of
PE&RS
for online subscribers through the
same portal at no additional charge. Please see the Frequently Asked Questions
about our journal subscriptions.
The rate of the e-Subscription (digital) Site License Only for USA and Foreign:
1000.00 USD; e-Subscription (digital) Site License Only for Canada*: 1049.00
USD; Special Offers: e-Subscription (digital) Plus Print for the USA: 1365.00
USD; e-Subscription (digital) Plus Print Canada*: 1424.00 USD; e-Subscription
(digital) Plus Print Outside of the USA: 1395.00 USD; Printed-Subscription
Only for USA: 1065.00 USD; Printed-Subscription Only for Canada*: 1124.00
USD; Printed-Subscription Only for Other Foreign: 1195.00 USD. *Note:
e-Subscription/Printed-Subscription Only/e-Subscription Plus Print for
Canada include 5% of the total amount for Canada’s Goods and Services Tax
(GST #135123065).
PLEASE NOTE: All Subscription Agencies receive
a 20.00 USD discount.
POSTMASTER.
Send address changes to
PE&RS
, ASPRS Headquarters,
425 Barlow Place, Suite 210, Bethesda, Maryland 20814-2144. CDN CPM
#(40020812)
MEMBERSHIP.
Membership is open to any person actively engaged in the practice
of photogrammetry, photointerpretation, remote sensing and geographic
information systems; or who by means of education or profession is interested
in the application or development of these arts and sciences. Membership is
for one year, with renewal based on the anniversary date of the month joined.
Membership Dues include a 12-month electronic subscription to
PE&RS
. Or
you can receive the print copy of
PE&RS
Journal which is available to all
member types for an additional fee of 60.00 USD for shipping USA and or
75.00 USD for international shipping. Dues for ASPRS Members outside of
the U.S. will now be the same as for members residing in the U.S. Annual dues
for Regular members (Active Member) is 150 USD; for Student members 50
USD for USA and Canada 58 USD; 60 USD for Other Foreign members. A tax
of 5% for Canada’s Goods and Service Tax (GST #135123065) is applied to all
members residing in Canada.
COPYRIGHT 2019.
Copyright by the American Society for Photogrammetry and
Remote Sensing. Reproduction of this issue or any part thereof (except short
quotations for use in preparing technical and scientific papers) may be made
only after obtaining the specific approval of the Managing Editor. The Society
is not responsible for any statements made or opinions expressed in technical
papers, advertisements, or other portions of this publication. Printed in the
United States of America.
PERMISSION TO PHOTOCOPY.
The appearance of the code at the bottom of the
first page of an article in this journal indicates the copyright owner’s consent
that copies of the article may be made for personal or internal use or for the
personal or internal use of specific clients. This consent is given on the condition,
however, that the copier pay the stated per copy fee of 3.00 USD through the
Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, Massachusetts
01923, for copying beyond that permitted by Sections 107 or 108 of the U.S.
Copyright Law. This consent does not extend to other kinds of copying, such
as copying for general distribution, for advertising or promotional purposes,
for creating new collective works, or for resale.
The eastern United States is well known for its widespread show of vibrant foliage
each autumn. But western states grow more than just evergreen pines and palms;
they also display some spectacular fall color. These images show deciduous trees in
northern Utah painting the mountains in shades of red, orange, yellow, and purple.
The Operational Land Imager (OLI) on Landsat-8 acquired the images on 27 Septem-
ber 2018, as daylight hours shortened and temperatures cooled. The cover image,
draped over elevation data from the Shuttle Radar Topography Mission (SRTM),
shows Ogden Valley in the foreground. The valley is nestled amid part of the
Wasatch Range and is accessible by three scenic roads. The Ogden River Scenic
Byway, for example, meanders for about 16 kilometers (10 miles) through the Ogden
Canyon, connecting the city of North Ogden with Ogden Valley.
The image above is a nadir (straight-down) view showing Ogden city at the base of
the colorful mountain slopes. Hikers can reach the 2448-meter (8031-foot) summit
of Lewis Peak via a network of trails in the Uinta-Wasatch-Cache National Forest.
It is not the tallest mountain in the vicinity, but it offers views of the nearby Willard
and Ben Lomond peaks. Along the route, you can find fir trees mingling with wild-
flowers in July and August and with colorful deciduous trees by September. The
U.S. Forest Service noted about the Lewis Peak trail: “There may be no better place
to view the autumn colors than along this route.”
Colorful leaves adorn a variety of tree species in Utah’s forests, including canyon
maples, quaking aspens, scrub oaks, and Douglas hawthorn. The timing of the color
change in Utah this year was roughly on schedule, according to news reports. Other
parts of the country, from Maine to the mid-Atlantic, saw color appear a few weeks
late due daily low temperatures that have been warmer than usual.
The cooler temperatures and longer nights that arrive with fall tell trees to stop
producing chlorophyll. In the absence of this green pigment, the yellow, orange,
and red pigments left behind become visible. Weather factors—such as too much
or too little water, and the timing of that water—also affect the intensity and tim-
ing of color. To see the full images, visit
php?id=92880.
NASA Earth Observatory image by Joshua Stevens, using Landsat data from the
U.S. Geological Survey and topographic data from the Shuttle Radar Topography
Mission (SRTM). Story by Kathryn Hansen.
