PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING
August 2017
539
DX=–325.89m, DY=+324.13m, DZ=+664.51m,
scale = –7.60 x 10
6
, R
z
= +01.75˝, R
y
= –9.20˝,
R
x
= –7.39˝. The actual rms fit of my 7-parame-
ter solution to test points is: Latitude = ±1.69m,
Longitude = ±0.84m, and Height = ±0.65m. For
example, test point “N’pyong 21. On Tokyo
1918 Datum: X = 498,278.75, Y = 269,683.64,
f
= 37° 58´ 54.538 N, λ = 127° 47´ 35.747 E,
H = 784.65m. On WGS 84 Datum:
f
= 37° 59´ 04.483 N, λ = 127° 47´ 38.404 E,
h = 812.007m.
Thanks for the geodetic his-tory of Korea and
data go to Mr. Heungmuk Cho of the Geodesy
Division, National Geography Institute in Su-
won-shi, Republic of Korea.
U
pdate
“Korean Geodetic Datum 2002 (KGD2002), has
been adopted since 1st January 2003, replacing
the Tokyo datum which has been used in the
country since early 20
th
century.
“The new datum is based on the International
Terrestrial Reference System (ITRS) and uses
the Geodetic Reference System 1980 (GRS80)
ellipsoid. The KGD2002 uses International Ter-
restrial Reference Frame 2000 (ITRF2000) at
epoch 1
st
January 2002, which has a geocentric
origin. The datum origin of KGD 2002 is locat-
ed at NGII and the coordinates are:
j
o
= 37° 16′
33.3659″ N, λ
o
= 127° 03′ 14.8913″ E, h
o
= 91.253
m. Subsequently, the 1st order geodetic control
stations consisting of 14 GPS CORS stations
were readjusted for determining the KGD2002
coordinates. All of the works had been complet-
ed by the end of 2002.
“The National Geographical Information In-
stitute (NGII) of Korea together with a number
of surveying contractors has held GPS observa-
tion campaigns over the geodetic network since
1996. During these campaigns, about 11,000
points were observed until the end of 2007.”(
Im-
plementation of the New Korean Geocentric Da-
tum and GPS CORS Management, Young-Jin
Lee, Hung-Kyu Lee, Chan-Oh Kwon and Jun-
Ho Song, Integrating Generations, FIG Work-
ing Week 2008, Stockholm, Sweden 14-19 June
2008.
)
The contents of this column reflect the views of the
author, who is responsible for the facts and accuracy
of the data presented herein. The contents do not
necessarily reflect the official views or policies of the
American Society for Photogrammetry and Remote
Sensing and/or the Louisiana State University Center
for GeoInformatics (C
4
G).
This column was previously published in
PE&RS
.
In Memoriam
James Boyce Case
1928 - 2017
Jim Case, 88, of Cedar City, UT, passed away May 8, 2017, in St. George,
Utah. He was born October 26, 1928, in Lincoln, Illinois, to Richard Warren
and Blanche Irene Boyce Case. He married Claire Criger, together they
had a son James C. Case.
Jim grew up in Hanford, California where he graduated from Hanford High
School, then graduated from Stanford University, and earned a doctorate
degree from Ohio State University. He spent his career as a photogramme-
trist for the federal government. He has lived in Cedar City, UT, since 1989.
Jim joined ASPRS IN 1952 and was an Emeritus and Honorary Member
and the editor of
PE&RS
for many years.
Family and friends are invited to share condolences online at
.
serenitystg.com/obituaries/James-Case-4/.
Comments from ASPRS members and friends of Jim Case:
I’m deeply saddened by the news of Jim’s passing. I worked closely
with him as he engineered my passage through the ASPRS journal
editorship many years ago. He was a good shepherd and I was in fre-
quent contact with him during that apprenticeship. Please accept me
among the list of mourners. Back in the day, he was my beacon as I
endeavored to do my job for the Journal. His passage brings me to my
knees and I will not never forget his impact on me!
Stan Morain
I fully agree with those who appreciated Jim’s contribution to ASPRS
and especially he was outstanding as the editor of PE&RS. We worked
together at the TOPO Center after he left Autometric. Jim had visited
Duane Brown and took notes on Duane’s idea for Orbital Constraints
on Block Adjustment Mathematics. Jim gave me a copy of his notes
which I really appreciated. Later the DMA funded DBA to write the
Fortran Program and we used the program on the Apollo Lunar im-
agery. Jim Case published an epic paper on using constraints in Pho-
togrammetry. I had great respect for Jim and we have lost a great
contributor and friend.
Don Light
I was first introduced to Jim Case by Frank Moffitt shortly after grad-
uating. I learned then to use “micrometers” instead of “microns.” Who
would know that years later that I would become the technical editor
for the Manual of Photogrammetry.
George Lee
Jim was an amazing person. I have fond memories of listening to how,
as journal editor, he saw our profession changing and, later, how he
was adapting to living in Utah. Good man.
Peggy Harwood
Part of this column was originally published in The Spectrum & Daily
News on May 14, 2017.
