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ACKNOWLEDGMENTS 2017
The AGU journals 'Space Weather', 'Journal of Geophysical Research/Space Physics',
'Geophysical Research Letters', and 'Radio Science' were searched for acknowledgments of
services developed and supported by NASA/Goddard's Space Physics Data Facility (SPDF).
Keywords searched and
the number of occurrences across all four journals:
OMNI and/or OMNIWeb were referenced in 250 papers
CDAWeb was referenced in 160 papers
Space Physics Data Facility and/or SPDF was referenced in 120
papers
SPDF-FTP was referenced in 2 papers
SSCWeb or TIPSOD was referenced in 4 papers
COHOWeb and/or ATMOweb/ftpbrowser was referenced in 3 papers
VITMO-models was referenced in 37 papers
Journal Total number Number of papers Percentage
of papers with acknowledgment
SW 128 41 32.0 %
JGR 833 271 32.5 %
GRL 1412(all areas) 35
RS 127 10 7.9 %
Science Enabled Research Papers in Space Weather journal for 2017
1. Title=SAMPEX observations of the
South Atlantic anomaly secular drift during solar cycles 22-24
Authors=Jones, A. D.; Kanekal, S. G.; Baker, D. N.; Klecker, B.; Looper, M. D.;
Mazur, J. E.; Schiller, Q.;
article=2016SW001525; doi=10.1002/2016SW001525; pubdate=9 January 2017
Keywords found: OMNIWeb, SPDF
Sample usage= was obtained from available SPDF OMNIweb
data files.
Sample usage= index was obtained from available SPDF OMNIweb
data files.
2. Title=Extreme geomagnetic storms: Probabilistic forecasts and their
uncertainties
Authors=Riley, Pete; Love, Jeffrey J.;
article=2016SW001470; doi=10.1002/2016SW001470; pubdate=10 January 2017
Keywords found: COHOWeb, OMNIWeb
Sample usage= obtained from NASA's COHOWEB .
Sample usage= [141]2016], and NASA's OMNIWeb [OMNIWeb, [142]2016]. There are some
3. Title=Global modeling of the low and middle
latitude ionospheric D and lower E regions and implications for HF radio wave
absorption
Authors=Siskind, David E.; Zawdie,
K. A.; Sassi, F.; Drob, D.;
Friedrich, M.;
article=2016SW001546; doi=10.1002/2016SW001546; pubdate=20 January 2017
Keywords found: International Reference Ionosphere
Sample usage= (Faraday International Reference Ionosphere ) model [Friedrich
and
4. Title=The substorm cycle as reproduced by global
MHD models
Authors=Gordeev, E.; Sergeev, V.; Tsyganenko,
N.; Kuznetsova, M.; Rastäetter, L.; Raeder,
J.; Tóth, G.; Lyon, J.; Merkin, V.; Wiltberger, M.;
article=2016SW001495; doi=10.1002/2016SW001495; pubdate=20 January 2017
Keywords found: CDAWeb, OMNIWeb,
OMNI, CCMC, Community Coordinated Modeling Center
Sample usage= were provided by the NASA CDAWeb and OMNIWeb sites.
Sample usage= by the NASA CDAWeb and OMNIWeb sites.
Sample usage= field measurements combined with the OMNI data
5. Title=Dependence of radiation belt simulations to assumed radial diffusion
rates tested for two empirical models of radial transport
Authors=Drozdov, A. Y.; Shprits,
Y. Y.; Aseev, N. A.; Kellerman, A. C.; Reeves, G. D.;
article=2016SW001426; doi=10.1002/2016SW001426; pubdate=20 January 2017
Keywords found: OMNIWeb
Sample usage= used geomagnetic indices provided by OMNIWeb
6. Title=Regression based forecast model of induced geoelectric
field
Authors=Lotz, S. I.; Heyns,
M. J.; Cilliers, P. J.;
article=2016SW001518; doi=10.1002/2016SW001518; pubdate=24 January 2017
Keywords found: CDAWeb, OMNIWeb,
OMNI, OMNI-2
Sample usage= Data Facility's OMNIWeb (or CDAWeb or ftp) service and OMNI
Sample usage= sets at [148]http:// omniweb .gsfc.nasa.gov. Measurements of solar wind
Sample usage= are retrieved from the high-resolution OMNI (HRO) data
Sample usage= shifting of data for the OMNI-2 data
7. Title=Exploring predictive performance: A reanalysis of the geospace model transition challenge
Authors=Welling, D. T.; Anderson, B. J.; Crowley, G.; Pulkkinen,
A. A.; Rastätter, L.;
article=2016SW001505; doi=10.1002/2016SW001505; pubdate=25 January 2017
Keywords found: OMNIWeb, OMNI
Sample usage= database ([189]http:// omniweb
.[190]gsfc.nasa.gov/ow_min.html). The
Sample usage= data were obtained from the OMNI
8. Title=Nowcasting and forecasting of the
magnetopause and bow shock—A
status update
Authors=Petrinec, S. M.; Redmon,
R. J.; Rastaetter, L.;
article=2016SW001565; doi=10.1002/2016SW001565; pubdate=31 January 2017
Keywords found: CDAWeb, OMNI
Sample usage= CDAWeb . This effort was supported
Sample usage= model (both driven by the OMNI solar
9. Title=Validation of the effect of cross calibrated GOES solar proton
effective energies on derived integral fluxes by comparison with STEREO
observations
Authors=Rodriguez, J. V.; Sandberg, I.; Mewaldt, R.
A.; Daglis, I. A.; Jiggens,
P.;
article=2016SW001533; doi=10.1002/2016SW001533; pubdate=2 February 2017
Keywords found: Space Physics Data Facility
Sample usage= available from NASA's Space Physics Data Facility
. We thank C. Clark
10. Title=Thermospheric nitric oxide response to
shock led storms
Authors=Knipp, D. J.; Pette,
D. V.; Kilcommons, L. M.; Isaacs, T. L.; Cruz, A. A.;
Mlynczak, M. G.; Hunt, L. A.; Lin, C. Y.;
article=2016SW001567; doi=10.1002/2016SW001567; pubdate=10 February 2017
Keywords found: CDAWeb
Sample usage= [431]http:// cdaweb
.sci.gsfc.nasa.gov/index.html/, then selecting DMSP.
11. Title=Comparison of predictive estimates of high latitude electrodynamics
with observations of global scale Birkeland currents
Authors=Anderson, Brian J.; Korth, Haje; Welling, Daniel T.; Merkin,
Viacheslav G.; Wiltberger,
Michael J.; Raeder, Joachim; Barnes, Robin J.; Waters, Colin L.; Pulkkinen, Antti A.; Rastaetter,
Lutz;
article=2016SW001529; doi=10.1002/2016SW001529; pubdate=13 February 2017
Keywords found: OMNI
Sample usage= run at the CCMC using OMNI solar wind and IMF data
12. Title=Energetic Particle Data From the Global Positioning System
Constellation
Authors=Morley, S. K.; Sullivan, J. P.; Carver, M. R.; Kippen,
R. M.; Friedel, R. H. W.; Reeves, G. D.; Henderson,
M. G.;
article=2017SW001604; doi=10.1002/2017SW001604; pubdate=15 February 2017
Keywords found: OMNIWeb
Sample usage= [195]http:// omniweb
.gsfc.nasa.gov.
13. Title=Using spectral shape and predictor fluence
to evaluate temporal dependence of exposures from solar particle events
Authors=Kim, Myung Hee Y.; Blattnig,
Steve R.; Clowdsley, Martha C.; Norman, Ryan B.;
article=2016SW001552; doi=10.1002/2016SW001552; pubdate=15 February 2017
Keywords found: SPDF
Sample usage= [316]http:// spdf
.sci.gsfc.nasa.gov/pub/data/imp/imp8/documents/archived
14. Title=A comparison of methods for estimating the geoelectric
field
Authors=Weigel, R. S.;
article=2016SW001504; doi=10.1002/2016SW001504; pubdate=27 February 2017
Keywords found: CDAWeb, OMNI, International Reference
Ionosphere
Sample usage= [218]http:// cdaweb
.sci.gsfc.nasa.gov/index.html/. We acknowledge Anna
Sample usage= were obtained from the OMNI data set at
Sample usage= Previous article in Early View: International Reference
Ionosphere
15. Title=International Reference Ionosphere 2016: From ionospheric climate to
real time weather predictions
Authors=Bilitza, D.; Altadill,
D.; Truhlik, V.; Shubin,
V.; Galkin, I.; Reinisch,
B.; Huang, X.;
article=2016SW001593; doi=10.1002/2016SW001593; pubdate=27 February 2017
Keywords found: SPDF, Space Physics Data Facility, International Reference
Ionosphere, IRI-2001, IRI-2007, IRI-2012, IRI2012
Sample usage= SPDF site are counted. Accesses to
Sample usage= improvements. We thank NASA's Space Physics Data Facility (SPDF)
and
Sample usage= International Reference Ionosphere 2016: From ionospheric climate
to
Sample usage= at Jicamarca and comparison with
IRI-2001
Sample usage= Topside ion composition with the IRI-2007 (dotted curves),
IRI-2012
Sample usage= were extended from 85-200 in IRI-2012 to 65-260 in
Sample usage= minimum and comparison with the IRI2012 model
16. Title=Predicting the magnetic vectors within coronal mass ejections
arriving at Earth: 2. Geomagnetic response
Authors=Savani, N. P.; Vourlidas,
A.; Richardson, I. G.; Szabo, A.; Thompson, B. J.; Pulkkinen,
A.; Mays, M. L.; Nieves Chinchilla, T.; Bothmer, V.;
article=2016SW001458; doi=10.1002/2016SW001458; pubdate=28 February 2017
Keywords found: OMNIWeb, OMNI, Space Physics Data
Facility
Sample usage= Flight Center for use of OMNIWeb service and OMNI
Sample usage= use of OMNIWeb service and OMNI
Sample usage= within SolarSoft. We thank the Space
Physics Data Facility of
17. Title=Calculating travel times and arrival speeds of CMEs to Earth: An
analytic tool for space weather forecasting
Authors=Corona Romero, P.; Gonzalez Esparza, J. A.; Perez Alanis, C. A.;
Aguilar Rodriguez, E.; de la Luz, V.; Mejia Ambriz,
J. C.;
article=2016SW001489; doi=10.1002/2016SW001489; pubdate=1 March 2017
Keywords found: OMNIWeb, SPDF, Space Physics Data
Facility
Sample usage= ([233]sxi.ngdc.noaa.gov/), in situ data by OMNIWeb
Sample usage= Space Physics Data Facility ( SPDF ) and
Sample usage= grant. We acknowledge the Space Physics Data Facility (SPDF) and
18. Title=Dependence of Pedersen conductance in the E and F regions and their
ratio on the solar and geomagnetic activities
Authors=Sheng, Cheng; Deng, Yue; Lu, Yang; Yue, Xinan;
article=2016SW001486; doi=10.1002/2016SW001486; pubdate=6 March 2017
Keywords found: OMNIWeb
Sample usage= acknowledge the use of NASA/GSFC's OMNIWeb
service, which provided the
19. Title=Two empirical models for short term forecast of Kp
Authors=Luo, B.; Liu, S.; Gong, J.;
article=2016SW001585; doi=10.1002/2016SW001585; pubdate=14 March 2017
Keywords found: OMNIWeb, OMNI, SPDF
Sample usage= website ([159]http:// omniweb .gsfc.nasa.gov/). The OMNI data had
Sample usage= They were obtained from the OMNI
Sample usage= were obtained from the GSFC/ SPDF
20. Title=A comparison between the geoeffectiveness
of north south and south north magnetic clouds and an associated prediction
Authors=Wu, Chin Chun; Lepping, Ronald P.; Berdichevsky, Daniel Benjamin; Liou,
Kan;
article=2016SW001520; doi=10.1002/2016SW001520; pubdate=27 March 2017
Keywords found: CDAWeb
Sample usage= teams ([157]http:// cdaweb .gsfc.nasa.gov/pub/data/wind). The second data
21. Title=Forecasting the properties of the solar wind using simple pattern
recognition
Authors=Riley, Pete; Ben Nun, Michal; Linker, Jon A.; Owens, M. J.; Horbury, T. S.;
article=2016SW001589; doi=10.1002/2016SW001589; pubdate=28 March 2017
Keywords found: COHOWeb, OMNIWeb,
Space Physics Data Facility
Sample usage= through the COHOWeb data server). We
chose 1
Sample usage= ([246]http://[247] omniweb
.sci.gsfc.nasa.gov/coho/) in retrieving the
Sample usage= NASA/GSFC's Space Physics Data Facility 's COHOWeb
service
22. Title=Cosmic ray modulation and radiation dose of aircrews during the solar
cycle 24/25
Authors=Miyake, Shoko; Kataoka, Ryuho;
Sato, Tatsuhiko;
article=2016SW001588; doi=10.1002/2016SW001588; pubdate=18 April 2017
Keywords found: OMNIWeb, OMNI, SPDF, Space Physics
Data Facility
Sample usage= Center/Space Physics Data Facility (GSFC/SPDF) OMNIWeb
Sample usage= OMNI or Wilcox Solar Observatory. Gray
Sample usage= Center/Space Physics Data Facility (GSFC/ SPDF
) OMNIWeb
Sample usage= Space Flight Center/ Space Physics Data Facility (GSFC/SPDF) OMNIWeb
23. Title=Variation and modeling of ultraviolet auroral
oval boundaries associated with interplanetary and geomagnetic parameters
Authors=Hu, Ze Jun; Yang, Qiu
Ju; Liang, Ji Min; Hu, Hong Qiao;
Zhang, Bei Chen; Yang, Hui Gen;
article=2016SW001530; doi=10.1002/2016SW001530; pubdate=19 April 2017
Keywords found: CDAWeb, OMNIWeb,
OMNI
Sample usage= Coordinated Data Analysis Web ( CDAWeb
)
Sample usage= ([290]http:// omniweb
.gsfc.nasa.gov/), and the Polar UVI
Sample usage= are derived from the NASA OMNI
24. Title=Testing nowcasts of the ionospheric
convection from the expanding and contracting polar cap model
Authors=Walach, M. T.; Milan, S. E.; Yeoman, T. K.;
Hubert, B. A.; Hairston, M. R.;
article=2017SW001615; doi=10.1002/2017SW001615; pubdate=20 April 2017
Keywords found: CDAWeb, OMNIWeb,
OMNI, SPDF
Sample usage= GSFC/SPDF OMNIWeb platform
([294]http:// cdaweb .gsfc.nasa.gov/), and we
Sample usage= GSFC/SPDF OMNIWeb platform
([294]http://cdaweb.gsfc.nasa.gov/), and we
Sample usage= reconnection rate, estimated using the OMNI data set. The results
show
Sample usage= GSFC/ SPDF OMNIWeb platform ([294]http://cdaweb.gsfc.nasa.gov/), and we
25. Title=A global scale picture of ionospheric peak electron density changes
during geomagnetic storms
Authors=Kumar, Vickal V.; Parkinson, Murray L.;
article=2016SW001573; doi=10.1002/2016SW001573; pubdate=29 April 2017
Keywords found: OMNIWeb
Sample usage= are from OMNIweb . The Dst index for
26. Title=Modes of temperature and pressure variability in midlatitude
troposphere and lower stratosphere in relation to cosmic ray variations
Authors=Morozova, A. L.; Blanco, J. J.; Ribeiro, P.;
article=2016SW001582; doi=10.1002/2016SW001582; pubdate=3 May 2017
Keywords found: CDAWeb, OMNI
Sample usage= database [369]http:// cdaweb .gsfc.nasa.gov/istp_public/,
and GOES
Sample usage= OMNI database and the SOHO Electron
27. Title=Performance evaluation of GIM TEC assimilation of the IRI Plas model at two equatorial stations in the American
sector
Authors=Adebiyi, S. J.; Adebesin,
B. O.; Ikubanni, S. O.; Joshua, B. W.;
article=2017SW001596; doi=10.1002/2017SW001596; pubdate=30 May 2017
Keywords found: OMNIWeb, Space Physics Data Facility,
International Reference Ionosphere
Sample usage= [181]http:// omniweb
.gsfc.nasa.gov/form/dx1.html), as additional
Sample usage= NASA, Space Physics Data Facility (available at
Sample usage= International Reference Ionosphere (IRI) model [Rawer et al.,
28. Title=Real time geomagnetic monitoring for space weather related
applications: Opportunities and challenges
Authors=Love, Jeffrey J.; Finn, Carol A.;
article=2017SW001665; doi=10.1002/2017SW001665; pubdate=24 July 2017
Keywords found: CDAWeb, International Reference
Ionosphere
Sample usage= Coordinated Data Analysis Web ( CDAWEB )
[Candey, [181]2010], the World
Sample usage= (2011), The international reference ionosphere today and in the
29. Title=Extreme relativistic electron fluxes in the Earth’s outer radiation
belt: Analysis of INTEGRAL IREM data
Authors=Meredith, Nigel P.; Horne, Richard B.; Sandberg, Ingmar; Papadimitriou,
Constantinos; Evans, Hugh D. R.;
article=2017SW001651; doi=10.1002/2017SW001651; pubdate=27 July 2017
Keywords found: OMNIWeb
Sample usage= Facility's OMNIWeb service for
provision of the
30. Title=Modeling solar energetic particle events using ENLIL heliosphere
simulations
Authors=Luhmann, J. G.; Mays, M. L.; Odstrcil, D.; Li, Yan; Bain, H.; Lee, C. O.; Galvin, A. B.;
Mewaldt, R. A.; Cohen, C. M. S.; Leske,
R. A.; Larson, D.; Futaana, Y.;
article=2017SW001617; doi=10.1002/2017SW001617; pubdate=28 July 2017
Keywords found: CDAWeb, OMNIWeb,
OMNI, FTPBrowser, SPDF
Sample usage= data were obtained via
the CDAWeb portal of the Space Physics
Sample usage= ([227]https:// omniweb
.gsfc.nasa.gov) (top panels). The typical
Sample usage= (1 h resolution) from the OMNI database
Sample usage= ([374]https://omniweb.sci.gsfc.nasa.gov/
ftpbrowser /). MAVEN SEP data
Sample usage= Facility at GSFC ([373]https: spdf .gsfc.nasa.gov), and the GOES data
31. Title=Modeling observations of solar coronal mass ejections with heliospheric imagers verified with the Heliophysics
System Observatory
Authors=Möstl, C.; Isavnin,
A.; Boakes, P. D.; Kilpua,
E. K. J.; Davies, J. A.; Harrison, R. A.; Barnes, D.; Krupar,
V.; Eastwood, J. P.; Good, S. W.; Forsyth, R. J.; Bothmer,
V.; Reiss, M. A.; Amerstorfer, T.; Winslow, R. M.;
Anderson, B. J.; Philpott, L. C.; Rodriguez, L.; Rouillard, A. P.; Gallagher,
P.; Nieves Chinchilla, T.; Zhang, T. L.;
article=2017SW001614; doi=10.1002/2017SW001614; pubdate=29 July 2017
Keywords found: CDAWeb
Sample usage= * Wind: [319]https:// cdaweb
.sci.gsfc.nasa.gov
32. Title=Probabilistic forecasting of the disturbance storm time index: An
autoregressive Gaussian process approach
Authors=Chandorkar, M.; Camporeale,
E.; Wing, S.;
article=2017SW001627; doi=10.1002/2017SW001627; pubdate=5 August 2017
Keywords found: CDAWeb, OMNIWeb,
OMNI, Space Physics Data Facility
Sample usage= (or CDAWeb or ftp) service and OMNI
Sample usage= NASA/GSFC's Space Physics Data Facility's OMNIWeb
Sample usage= prediction task and use the OMNI hourly resolution
Sample usage= We acknowledge use of NASA/GSFC's Space Physics Data Facility 's OMNIWeb
33. Title=Empirical radiation belt models: Comparison with in situ data and
implications for environment definition
Authors=Soria Santacruz Pich,
Maria; Jun, Insoo; Evans, Robin;
article=2017SW001612; doi=10.1002/2017SW001612; pubdate=13 September 2017
Keywords found: NSSDC, AP-8, AE-8
Sample usage= Tech. Rep. NSSDC /WDC-A-R&S 91M-bM-^@M-^S29, National Space
Science
Sample usage= and J. I. Vette (1976), AP-8 trapped proton
Sample usage= Vette, J. I. (1991b), The AE-8 trapped electron model
environment,
34. Title=Midlatitude postsunset
plasma bubbles observed over Europe during intense storms in April 2000 and
2001
Authors=Katamzi Joseph, Zama Thobeka;
Habarulema, John Bosco; Hernandez Pajares,
Manuel;
article=2017SW001674; doi=10.1002/2017SW001674; pubdate=18 September 2017
Keywords found: OMNIWeb
Sample usage= OMNIWEB interface
35.Title=CEDAR GEM Challenge for Systematic Assessment of
Ionosphere/Thermosphere Models in Predicting TEC During the 2006 December Storm
Event
Authors=Shim, J. S.; Rastätter, L.;
Kuznetsova, M.; Bilitza, D.; Codrescu, M.; Coster, A. J.; Emery, B. A.; Fedrizzi,
M.; Förster, M.; Fuller Rowell, T. J.;
Gardner, L. C.; Goncharenko, L.; Huba,
J.; McDonald, S. E.; Mannucci, A. J.; Namgaladze, A. A.; Pi, X.; Prokhorov, B. E.; Ridley, A. J.;
Scherliess, L.; Schunk, R.
W.; Sojka, J. J.; Zhu, L.;
article=2017SW001649; doi=10.1002/2017SW001649; pubdate=5 October 2017
Keywords found: OMNI, NSSDC, International Reference Ionosphere, IRI-2007,
IRI-2012
Sample usage= F[10.7],
Kp, OMNI IMF data and solar wind
Sample usage= pages, NSSDC /WDC-A-R&S 90-22, Greenbelt, Maryland: National
Sample usage= * Bilitza, D., (1990). International
reference ionosphere 1990, 155
Sample usage= 1_IRI[201]a IRI-2007 (Bilitza, [202]1990, [203]2001; Bilitza
&
Sample usage= 2_IRI[208]a IRI-2012 (Bilitza et al.,
[209]2014) IRI-corr
36. Title=Climatology of the Auroral Electrojets Derived From the Along Track Gradient of
Magnetic Field Intensity Measured by POGO, Magsat,
CHAMP, and Swarm
Authors=Smith, A. R. A.; Beggan, C. D.; Macmillan,
S.; Whaler, K. A.;
article=2017SW001675; doi=10.1002/2017SW001675; pubdate=9 October 2017
Keywords found: OMNIWeb, OMNI, SPDF
Sample usage= [223]https:// omniweb
.gsfc.nasa.gov. The SuperMAG data are
Sample usage= the hour-averaged and minute NASA OMNI 2 databases which draw
data
Sample usage= available through the NASA GSFC SPDF at
37. Title=Intelligent Sampling of Hazardous Particle Populations in Resource
Constrained Environments
Authors=McCollough, J. P.; Quinn, J. M.; Starks, M.
J.; Johnston, W. R.;
article=2017SW001629; doi=10.1002/2017SW001629; pubdate=16 October 2017
Keywords found: CDAWeb
Sample usage= data follow CDAWeb convention and are
derived from
38. Title=Probabilistic Solar Wind Forecasting Using Large Ensembles of Near
Sun Conditions With a Simple One Dimensional “Upwind” Scheme
Authors=Owens, Mathew J.; Riley, Pete;
article=2017SW001679; doi=10.1002/2017SW001679; pubdate=6 November 2017
Keywords found: OMNI, Space Physics Data Facility
Sample usage= a function of time, with OMNI observations shown in black.
Sample usage= We are grateful to the Space Physics Data Facility and National
Space
39. Title=The Future of Ground Magnetometer Arrays in Support of Space Weather
Monitoring and Research
Authors=Engebretson, Mark; Zesta,
Eftyhia;
article=2017SW001718; doi=10.1002/2017SW001718; pubdate=14 November 2017
Keywords found: CDAWeb
Sample usage= Coordinated Data Analysis Web ([176]https://
cdaweb .sci.gsc.nasa.gov);
40. Title=Data Assimilation in the Solar Wind: Challenges and First Results
Authors=Lang, Matthew; Browne, Philip; Leeuwen, Peter
Jan; Owens, Mathew;
article=2017SW001681; doi=10.1002/2017SW001681; pubdate=16 November 2017
Keywords found: NSSDC (now SPDF-FTP)
Sample usage= online (e.g., at [165]https:// nssdc .gsfc.nasa.gov/space/).
41. Title=Cost Loss Analysis of Ensemble Solar Wind Forecasting: Space Weather
Use of Terrestrial Weather Tools
Authors=Henley, E. M.; Pope, E. C. D.;
article=2017SW001758; doi=10.1002/2017SW001758; pubdate=22 December 2017
Keywords found: OMNIWeb, OMNI
Sample usage= [231]https:// omniweb
.gsfc.nasa.gov/html/histo.html. Webpage
Sample usage= at various percentiles of the OMNI solar
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