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Stephen Ungar
Stephen Ungar
Scientist Emeritus NASA Goddard Space Flight Center
Verified email at nasa.gov
Title
Cited by
Cited by
Year
Overview of the earth observing one (EO-1) mission
SG Ungar, JS Pearlman, JA Mendenhall, D Reuter
IEEE Transactions on Geoscience and Remote Sensing 41 (6), 1149-1159, 2003
4082003
The earth observing one (EO-1) satellite mission: Over a decade in space
EM Middleton, SG Ungar, DJ Mandl, L Ong, SW Frye, PE Campbell, ...
IEEE Journal of Selected Topics in Applied Earth Observations and Remote …, 2013
1532013
The EO-1 autonomous science agent
S Chien, R Sherwood, D Tran, B Cichy, G Rabideau, R Castano, A Davies, ...
Proceedings of the Third International Joint Conference on Autonomous Agents …, 2004
1162004
Space‐based remote imaging spectroscopy of the Aliso Canyon CH4 superemitter
DR Thompson, AK Thorpe, C Frankenberg, RO Green, R Duren, ...
Geophysical Research Letters 43 (12), 6571-6578, 2016
1062016
Development and operations of the EO-1 Hyperion imaging spectrometer
J Pearlman, C Segal, LB Liao, SL Carman, MA Folkman, W Browne, ...
Earth Observing Systems V 4135, 243-253, 2000
1012000
Classification of corn and soybeans using multitemporal thematic mapper data
GD Badhwar
Remote Sensing of Environment 16 (2), 175-181, 1984
881984
Sensing the Earth's atmosphere with occultation satellites
B Lusignan, G Modrell, A Morrison, J Pomalaza, SG Ungar
Proceedings of the IEEE 57 (4), 458-467, 1969
771969
Achieving satellite instrument calibration for climate change
G Ohring, J Tansock, W Emery, J Butler, L Flynn, F Weng, KS Germain, ...
Eos, Transactions American Geophysical Union 88 (11), 136-136, 2007
762007
Autonomous science on the EO-1 mission
S Chien, R Sherwood, D Tran, R Castano, B Cichy, A Davies, G Rabideau, ...
Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space …, 2003
732003
Use of the earth observing one (EO-1) satellite for the namibia sensorweb flood early warning pilot
D Mandl, S Frye, P Cappelaere, M Handy, F Policelli, MC Katjizeu, ...
IEEE Journal of Selected Topics in Applied Earth Observations and Remote …, 2013
652013
Establishing the Antarctic Dome C community reference standard site towards consistent measurements from Earth observation satellites
C Cao, S Uprety, J Xiong, A Wu, P Jing, D Smith, G Chander, N Fox, ...
Canadian Journal of Remote Sensing 36 (5), 498-513, 2010
542010
Atmospheric effects on radiometric imaging from satellites under low optical thickness conditions
J Otterman, S Ungar, Y Kaufman, M Podolak
Remote Sensing of Environment 9 (2), 115-129, 1980
431980
The future of imaging spectroscopy prospective technologies and applications
M Schaepman, R Green, S Ungar, B Curtiss, J Boardman, A Plaza, ...
2006 IEEE International Symposium on Geoscience and Remote Sensing, 2005-2009, 2006
372006
Overview of EO-1, the first 120 days
SG Ungar
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings …, 2001
342001
Sensor web 2.0: Connecting earth’s sensors via the internet
D Mandl, P Cappelaere, S Frye, R Sohlberg, L Ong, S Chien, D Tran, ...
Proceedings of NASA earth science technology conference 2008, 2008
332008
Determination of soil moisture distribution from impedance and gravimetric measurements
SG Ungar, R Layman, JE Campbell, J Walsh, HJ McKim
Journal of Geophysical Research: Atmospheres 97 (D17), 18969-18977, 1992
271992
NASA mission to measure global plant physiology and functional types
RO Green, G Asner, S Ungar, R Knox
2008 IEEE Aerospace Conference, 1-7, 2008
252008
EO-1 data quality and sensor stability with changing orbital precession at the end of a 16 year mission
S Franks, CSR Neigh, PK Campbell, G Sun, T Yao, Q Zhang, ...
Remote sensing 9 (5), 412, 2017
222017
Technologies for future Landsat missions
SG Ungar
Photogrammetric engineering and remote sensing 63 (7), 901-905, 1997
211997
A space-based sensor web for disaster management
D Mandl, R Sohlberg, C Justice, S Ungar, T Ames, S Frye, S Chien, ...
IGARSS 2008-2008 IEEE International Geoscience and Remote Sensing Symposium …, 2008
202008
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