(NOTE 12/10/02: 1999 was replaced.)
(NOTE 06/14/05: All years were replaced for F11-15 calibrations and F8-15 sensor degradations.)
(NOTE 05/04/06: After transferring to another computer in June 2005, the DMSP data sets were found to be from the old (pre-2004) calibrations at: http://cedarweb.hao.ucar.edu/dmsp/dmspssj4_hp.html. DMSP-F16 was completely revised on 2 May 2006.)
(NOTE 07/27/06: The DMSP data is now correct on the website at: http://cedarweb.hao.ucar.edu/dmsp/dmspssj4_hp.html.
Contact Person for 'NOAA and DMSP Intersatellite Adjusted
Hemispheric Power Data Sets':
Barbara Emery (emery@ucar.edu)
Web Sites:
http://cedarweb.hao.ucar.edu/instruments/ehp.html for data and plots (in future).
http://cedarweb.hao.ucar.edu/ for data (click on 'Data Services', 'Get/plot data',
choose the instrument 'estimated hemispheric power', select dates, choose 'record type'
and pick one of the Emery types of data). Be sure to also get 'INFO' type of data
for the definitions of the parameter codes and for geophysical units.
References to the 'NOAA and DMSP Intersatellite Adjusted
Hemispheric Power'
ACKNOWLEDGMENTS: The original National Oceanic and Atmospheric Administration (NOAA) Hemispheric Power data were provided by the Space Weather Prediction Center, Boulder CO and the original Defense Meteorological Satellite Program (DMSP) Hemispheric Power data were provided by the United States Air Force Research Laboratory (AFRL), Hanscom AFB, MA via the CEDAR Database. The intersatellite adjusted revisions of these data and the hourly composite electron and ion hemispheric power were based on work supported by the National Science Foundation under Grant No. 0208145. The CEDAR Database is also supported by the National Science Foundation.
Any opinions, findings, and conclusions expressed in the material are those of the
author (B. Emery) and do not necessarily reflect the views of the National Science
Foundation.
If recent summary plots are not available, the data can be obtained via the CEDAR Database (click on 'Data Services', 'Get/plot data' and proceed with 'Select an Instrument', 'Estimated Hemispheric Power' about 3rd page down after the IS radars). Be sure to also get 'INFO' type of data for the definitions of the parameter codes and for geophysical units.
Plots are for every 60 days of hemispheric power estimates from normalized NOAA (kindat=31021, URL file=ehp781102a), DMSP (kindat=31012, URL file=ehp830101a), and intersatellite hourly composite Hpe from 1978 and Hpi from 1998 (kindat=31201, URL file=ehp781102b). Intersatellite adjusted electron hemispheric power (Hpe) DMSP and NOAA (also Hpt and Hpi for SEM-2) (kindat=31100, URL file=ehp781102c) are available, but not plotted. All data are available when clicking on 'All data', but differentiated by their URL. To get a description of the parameter codes and geophysical units, change in the URL line 'TAB' to 'INFO'.
Data Description
The total (Hpt) or electron (Hpe) hemispheric power input is computed from NOAA/TIROS and DMSP satellite measurements of high latitude precipitating energy flux carried by ions and electons with energies up to 20 keV. NOAA SEM-1 instruments observed between 300 eV and 20 keV, NOAA SEM-2 between 50 eV and 20 keV, while DMSP SSJ4 and SSJ5 instruments observe between 32 eV and 30.18 keV. However, the electron hemispheric power from DMSP is estimated using only the energy channels from 32 eV to 20.62 keV to be consistent with the estimates from NOAA TED instruments. The contribution to the electron hemispheric power from energies between 50-300 eV is usually less than one percent. The contribution to Hpe between 20-30 keV is about 5% of Hpe(<30 keV), rising to ~12% for Kp=0, but this is not included in the DMSP Hpe(<20 keV).
The SEM-2 instrument started with NOAA-15 in 1998, when the ion hemispheric power (Hpi) was calculated from the difference between the total and electron hemispheric powers (i.e., Hpi=Hpt-Hpe). Hpi is ~7% of Hpt, rising to 15% for Kp=0. Ions between 20-30 keV have been estimated to be between 20% (Kp=0) and 40% (Kp=5) of Hpi (<20 keV) using DMSP satellites [Emery et al., STR470, 2006]. Ions between 30-240 keV are estimated to be ~1% (Kp=0), ~10% (Kp=1), 50% (Kp=3), 100% (Kp>=4) of Hpi (<20 keV) [Fang et al., 2007].
The NOAA total hemispheric power estimates have been calibrated against standards set by the TIROS-N and NOAA-12 satellites. Calibrations are set in the first 6 months of operation and are applied solely to Hpt estimates. They are NOT part of the correction factor, but are applied later to both hemispheres. The hemispheric estimates from the NOAA satellites starting with the NOAA-12 standard in 1991 are about 75% higher than the 'intersatellite adjusted' estimates. The European MetOp-02 satellite carries NOAA SEM-2 instrumentation, and so is analyzed as a NOAA SEM-2 satellite.
The DMSP low energy flux is calculated for electrons only with energies between 32 eV and 20.62 keV, specifically excluding the energy level at 30.18 keV. Ions are measured, but the hemispheric power from them is not calculated routinely and so is not included. The DMSP satellites undergo a rigorous pre and post-calibration process, where the sensor degradations are tracked using the South Atlantic Anomaly each year of operation.
The NOAA and DMSP satellite orbits are sun synchronous around 850 km altitude. Times given are the center of the polar pass used to make the estimate where a typical polar pass takes about 25 minutes. Often there are two satellites operating simultaneously providing coverage at 30 to 60 minute intervals between auroral latitude crossings. The energy flux observations made during a single pass over the polar regions (above about 45 degrees of magnetic latitude) are used to estimate the total precipitating power input to a single hemisphere at that time. This power index was devised by David Evans for the NOAA/TIROS satellites, and adapted for the DMSP satellites by Frederick Rich and William Denig.
DMSP estimates were added to the CEDAR Database in 2000, at which time the NOAA estimates were redone using the original data to add a quality code correction factor giving the multiplicative factor used to turn each estimate from a single pass to the hemispheric average. The numbers reported are the hemispheric estimates after the multiplicative factor, which is based on average patterns as a function of MLT, have already been applied to each satellite pass. Estimates with factors larger than 2 should be ignored, but have been included for completeness with the original data.
The DMSP data were revised in late 2004 to account for sensor degradations in F8-F15 and for re-calibrations for F11-F15. These data were compared to similar NOAA data and intersatellite adjustment 'corrections' were made within a factor of two in the record type 31100 (Emery et al., 2006, 2007). Sunlight contamination that could be over 150 GW was also removed for DMSP-F09 and F10 estimates in the southern Southern summer hemisphere. Hourly composite estimates of the electron (Hpe) and ion hemispheric power (Hpi) in each hemisphere are provided in record type 31201 (in Nov 2006; Hpe only in record type 31200 in June 2005) as average, median and standard deviations using all good (no multiplicative factors greater than 2) intersatellite adjusted data.
Descriptions of this power parameter may be found in:
Emery, B. A., D. S. Evans, M. S. Greer, E. Holeman, K. Kadinsky-Cade, F. J. Rich and W. Xu, The low energy auroral electron and ion hemispheric power after NOAA and DMSP intersatellite adjustments, NCAR Scientific and Technical Report, STR#470, 2006. .pdf text, tables, figures, and 88 appendix figures of Final STR (12/19/06)
- .pdf of tables of satellite dates, orbital characteristics and fitting parameters revised from STR470.
Emery, B. A., V. Coumans, D. S. Evans, G. A. Germany, M. S. Greer, E. Holeman, K. Kadinsky-Cade, F. J. Rich and W. Xu, Seasonal, solar flux, and magnetic activity variations in electron and ion auroral energy fluxes, submitted to J. Geophys. Res. in October 2007
D. S. Evans, Global Statistical Patterns of Auroral Phenomena, Proceedings of the Symposium on Quantitative Modeling of Magnetospheric-Ionospheric Coupling Processes, pp. 325-330, editors Y. Kamide and R. A. Wolf, Kyoto Sangyo University, Kyoto, 1987.
Fang, X., M. W. Liemohn, J. U. Kozyra, D. S. Evans, A. D. DeJong and B. A. Emery, Global 30-240 keV proton precipitation in the 17-18 April 2002 geomagnetic storms: 1. Patterns, J. Geophys. Res., 112, A05301, doi: 10.1029/2006JA011867, 2007.
J. C. Foster, J. M. Holt, R. G. Musgrove and D. S. Evans, Ionospheric Convection Associated with Discrete Levels of Particle Precipitation, Geophysical Research Letters, 13, 656-659, 1986.
T. Fuller-Rowell and D. S. Evans, Height-Integrated Pedersen and Hall Conductivity Patterns Inferred from the TIROS-NOAA Satellite Data, Journal of Geophysical Research, 92, 7606-7618, 1987.
Summary Plots of Average Composite Hourly SH Hpe and Hpi
Go to the
Contact Info
for references and for .pdf files of the NCAR Tech Report and JGR article.
Plots are for the more reliable southern hemisphere (SH) composite average hourly record type 31201 (data file ehp781102b) for the electron hemispheric power (Hpe, +) from 1978, and the ion hemispheric power (Hpi, .) from the NOAA SEM-2 satellites starting in 1998. The NOAA and DMSP hemispheric power (Hp) values from total (Hpt) or electron (Hpe) estimates have been adjusted to Hpe in record type 31100 (data file ehp781102c). The first estimates were put into the CEDAR Database in June 2005, with revisions in Oct 2006 and Oct 2007.
Nov 02, 1978-Dec 31, 1978 All data for this period 
Jan 01, 1979-Mar 01, 1979 All data for this period Mar 02, 1979-Apr 30, 1979 All data for this period May 01, 1979-Jun 29, 1979 All data for this period Jun 30, 1979-Aug 28, 1979 All data for this period Aug 29, 1979-Oct 27, 1979 All data for this period Oct 28, 1979-Dec 26, 1979 All data for this period Dec 27, 1979-Feb 24, 1980 All data for this period Feb 25, 1980-Apr 24, 1980 All data for this period Apr 25, 1980-Jun 23, 1980 All data for this period Jun 24, 1980-Aug 22, 1980 All data for this period Aug 23, 1980-Oct 21, 1980 All data for this period Oct 22, 1980-Dec 20, 1980 All data for this period Dec 21, 1980-Feb 18, 1981 All data for this period Feb 19, 1981-Apr 19, 1981 All data for this period Apr 20, 1981-Jun 18, 1981 All data for this period Jun 19, 1981-Aug 17, 1981 All data for this period Aug 18, 1981-Oct 16, 1981 All data for this period Oct 17, 1981-Dec 15, 1981 All data for this period Dec 16, 1981-Feb 13, 1982 All data for this period Feb 14, 1982-Apr 14, 1982 All data for this period Apr 15, 1982-Jun 13, 1982 All data for this period Jun 14, 1982-Aug 12, 1982 All data for this period Aug 13, 1982-Oct 11, 1982 All data for this period Oct 12, 1982-Dec 10, 1982 All data for this period Dec 11, 1982-Feb 08, 1983 All data for this period Feb 09, 1983-Apr 09, 1983 All data for this period Apr 10, 1983-Jun 08, 1983 All data for this period Jun 09, 1983-Aug 07, 1983 All data for this period Aug 08, 1983-Oct 06, 1983 All data for this period Oct 07, 1983-Dec 05, 1983 All data for this period Dec 06, 1983-Feb 03, 1984 All data for this period Feb 04, 1984-Apr 03, 1984 All data for this period Apr 04, 1984-Jun 02, 1984 All data for this period Jun 03, 1984-Aug 01, 1984 All data for this period Aug 02, 1984-Sep 30, 1984 All data for this period Oct 01, 1984-Nov 29, 1984 All data for this period Nov 30, 1984-Jan 28, 1985 All data for this period Jan 29, 1985-Mar 29, 1985 All data for this period Mar 30, 1985-May 28, 1985 All data for this period May 29, 1985-Jul 27, 1985 All data for this period Jul 28, 1985-Sep 25, 1985 All data for this period Sep 26, 1985-Nov 24, 1985 All data for this period Nov 25, 1985-Jan 23, 1986 All data for this period Jan 24, 1986-Mar 24, 1986 All data for this period Mar 25, 1986-May 23, 1986 All data for this period May 24, 1986-Jul 22, 1986 All data for this period Jul 23, 1986-Sep 20, 1986 All data for this period Sep 21, 1986-Nov 19, 1986 All data for this period Nov 20, 1986-Jan 18, 1987 All data for this period Jan 19, 1987-Mar 19, 1987 All data for this period Mar 20, 1987-May 18, 1987 All data for this period May 19, 1987-Jul 17, 1987 All data for this period Jul 18, 1987-Sep 15, 1987 All data for this period Sep 16, 1987-Nov 14, 1987 All data for this period Nov 15, 1987-Jan 13, 1988 All data for this period Jan 14, 1988-Mar 13, 1988 All data for this period Mar 14, 1988-May 12, 1988 All data for this period May 13, 1988-Jul 11, 1988 All data for this period Jul 12, 1988-Sep 09, 1988 All data for this period Sep 10, 1988-Nov 08, 1988 All data for this period Nov 09, 1988-Jan 07, 1989 All data for this period Jan 08, 1989-Mar 08, 1989 All data for this period Mar 09, 1989-May 07, 1989 All data for this period May 08, 1989-Jul 06, 1989 All data for this period Jul 07, 1989-Sep 04, 1989 All data for this period Sep 05, 1989-Nov 03, 1989 All data for this period Nov 04, 1989-Jan 02, 1990 All data for this period Jan 03, 1990-Mar 03, 1990 All data for this period Mar 04, 1990-May 02, 1990 All data for this period May 03, 1990-Jul 01, 1990 All data for this period Jul 02, 1990-Aug 30, 1990 All data for this period Aug 31, 1990-Oct 29, 1990 All data for this period Oct 30, 1990-Dec 28, 1990 All data for this period Dec 29, 1990-Feb 26, 1991 All data for this period Feb 27, 1991-Apr 27, 1991 All data for this period Apr 28, 1991-Jun 26, 1991 All data for this period Jun 27, 1991-Aug 25, 1991 All data for this period Aug 26, 1991-Oct 24, 1991 All data for this period Oct 25, 1991-Dec 23, 1991 All data for this period Dec 24, 1991-Feb 21, 1992 All data for this period Feb 22, 1992-Apr 21, 1992 All data for this period Apr 22, 1992-Jun 20, 1992 All data for this period Jun 21, 1992-Aug 19, 1992 All data for this period Aug 20, 1992-Oct 18, 1992 All data for this period Oct 19, 1992-Dec 17, 1992 All data for this period Dec 18, 1992-Feb 15, 1993 All data for this period Feb 16, 1993-Apr 16, 1993 All data for this period Apr 17, 1993-Jun 15, 1993 All data for this period Jun 16, 1993-Aug 14, 1993 All data for this period Aug 15, 1993-Oct 13, 1993 All data for this period Oct 14, 1993-Dec 12, 1993 All data for this period Dec 13, 1993-Feb 10, 1994 All data for this period Feb 11, 1994-Apr 11, 1994 All data for this period Apr 12, 1994-Jun 10, 1994 All data for this period Jun 11, 1994-Aug 09, 1994 All data for this period Aug 10, 1994-Oct 08, 1994 All data for this period Oct 09, 1994-Dec 07, 1994 All data for this period Dec 08, 1994-Feb 05, 1995 All data for this period Feb 06, 1995-Apr 06, 1995 All data for this period Apr 07, 1995-Jun 05, 1995 All data for this period Jun 06, 1995-Aug 04, 1995 All data for this period Aug 05, 1995-Oct 03, 1995 All data for this period Oct 04, 1995-Dec 02, 1995 All data for this period Dec 03, 1995-Jan 31, 1996 All data for this period Feb 01, 1996-Mar 31, 1996 All data for this period Apr 01, 1996-May 30, 1996 All data for this period May 31, 1996-Jul 29, 1996 All data for this period Jul 30, 1996-Sep 27, 1996 All data for this period Sep 28, 1996-Nov 26, 1996 All data for this period Nov 27, 1996-Jan 25, 1997 All data for this period Jan 26, 1997-Mar 26, 1997 All data for this period Mar 27, 1997-May 25, 1997 All data for this period May 26, 1997-Jul 24, 1997 All data for this period Jul 25, 1997-Sep 22, 1997 All data for this period Sep 23, 1997-Nov 21, 1997 All data for this period Nov 22, 1997-Jan 20, 1998 All data for this period Jan 21, 1998-Mar 21, 1998 All data for this period Mar 22, 1998-May 20, 1998 All data for this period May 21, 1998-Jul 19, 1998 All data for this period Jul 20, 1998-Sep 17, 1998 All data for this period Sep 18, 1998-Nov 16, 1998 All data for this period Nov 17, 1998-Jan 15, 1999 All data for this period Jan 16, 1999-Mar 16, 1999 All data for this period Mar 17, 1999-May 15, 1999 All data for this period May 16, 1999-Jul 14, 1999 All data for this period Jul 15, 1999-Sep 12, 1999 All data for this period Sep 13, 1999-Nov 11, 1999 All data for this period Nov 12, 1999-Jan 10, 2000 All data for this period Jan 11, 2000-Mar 10, 2000 All data for this period Mar 11, 2000-May 09, 2000 All data for this period May 10, 2000-Jul 08, 2000 All data for this period Jul 09, 2000-Sep 06, 2000 All data for this period Sep 07, 2000-Nov 05, 2000 All data for this period Nov 06, 2000-Jan 04, 2001 All data for this period Jan 05, 2001-Mar 05, 2001 All data for this period Mar 06, 2001-May 04, 2001 All data for this period May 05, 2001-Jul 03, 2001 All data for this period Jul 04, 2001-Sep 01, 2001 All data for this period Sep 02, 2001-Oct 31, 2001 All data for this period Nov 01, 2001-Dec 30, 2001 All data for this period Dec 31, 2001-Feb 28, 2002 All data for this period Mar 01, 2002-Apr 29, 2002 All data for this period Apr 30, 2002-Jun 28, 2002 All data for this period Jun 29, 2002-Aug 27, 2002 All data for this period Aug 28, 2002-Oct 26, 2002 All data for this period Oct 27, 2002-Dec 25, 2002 All data for this period Dec 26, 2002-Feb 23, 2003 All data for this period Feb 24, 2003-Apr 24, 2003 All data for this period Apr 25, 2003-Jun 23, 2003 All data for this period Jun 24, 2003-Aug 22, 2003 All data for this period Aug 23, 2003-Oct 21, 2003 All data for this period Oct 22, 2003-Dec 20, 2003 All data for this period Dec 21, 2003-Feb 18, 2004 All data for this period Feb 19, 2004-Apr 18, 2004 All data for this period Apr 19, 2004-Jun 17, 2004 All data for this period Jun 18, 2004-Aug 16, 2004 All data for this period Aug 17, 2004-Oct 15, 2004 All data for this period Oct 16, 2004-Dec 14, 2004 All data for this period Dec 15, 2004-Feb 12, 2005 All data for this period Feb 13, 2005-Apr 13, 2005 All data for this period Apr 14, 2005-Jun 12, 2005 All data for this period Jun 13, 2005-Aug 11, 2005 All data for this period Aug 12, 2005-Oct 10, 2005 All data for this period Oct 11, 2005-Dec 09, 2005 All data for this period Dec 10, 2005-Feb 07, 2006 All data for this period Feb 08, 2006-Apr 08, 2006 All data for this period Apr 09, 2006-Jun 07, 2006 All data for this period Jun 08, 2006-Aug 06, 2006 All data for this period 
Aug 07, 2006-Oct 05, 2006 All data for this period Oct 06, 2006-Dec 04, 2006 All data for this period Dec 05, 2006-Feb 02, 2007 All data for this period Feb 03, 2007-Apr 03, 2007 All data for this period Apr 04, 2007-Jun 02, 2007 All data for this period Jun 03, 2007-Aug 01, 2007 All data for this period Aug 02, 2007-Sep 30, 2007 All data for this period
Summary Plots for NOAA Estimated Hemispheric Power
All NOAA data were replaced in June 2004 so the estimated
electron and ion components available from NOAA-15 onwards
could be explicitly added. The plots from 1998 to the present
thus include ion hemispheric power estimates (Hpi) as dots.
Nov 02, 1978-Dec 31, 1978 All data for this period Jan 01, 1979-Mar 01, 1979 All data for this period Mar 02, 1979-Apr 30, 1979 All data for this period May 01, 1979-Jun 29, 1979 All data for this period Jun 30, 1979-Aug 28, 1979 All data for this period Aug 29, 1979-Oct 27, 1979 All data for this period Oct 28, 1979-Dec 26, 1979 All data for this period Dec 27, 1979-Feb 24, 1980 All data for this period Feb 25, 1980-Apr 24, 1980 All data for this period Apr 25, 1980-Jun 23, 1980 All data for this period Jun 24, 1980-Aug 22, 1980 All data for this period Aug 23, 1980-Oct 21, 1980 All data for this period Oct 22, 1980-Dec 20, 1980 All data for this period Dec 21, 1980-Feb 18, 1981 All data for this period Feb 19, 1981-Apr 19, 1981 All data for this period Apr 20, 1981-Jun 18, 1981 All data for this period Jun 19, 1981-Aug 17, 1981 All data for this period Aug 18, 1981-Oct 16, 1981 All data for this period Oct 17, 1981-Dec 15, 1981 All data for this period Dec 16, 1981-Feb 13, 1982 All data for this period Feb 14, 1982-Apr 14, 1982 All data for this period Apr 15, 1982-Jun 13, 1982 All data for this period Jun 14, 1982-Aug 12, 1982 All data for this period Aug 13, 1982-Oct 11, 1982 All data for this period Oct 12, 1982-Dec 10, 1982 All data for this period Dec 11, 1982-Feb 08, 1983 All data for this period Feb 09, 1983-Apr 09, 1983 All data for this period Apr 10, 1983-Jun 08, 1983 All data for this period Jun 09, 1983-Aug 07, 1983 All data for this period Aug 08, 1983-Oct 06, 1983 All data for this period Oct 07, 1983-Dec 05, 1983 All data for this period Dec 06, 1983-Feb 03, 1984 All data for this period Feb 04, 1984-Apr 03, 1984 All data for this period Apr 04, 1984-Jun 02, 1984 All data for this period Jun 03, 1984-Aug 01, 1984 All data for this period Aug 02, 1984-Sep 30, 1984 All data for this period Oct 01, 1984-Nov 29, 1984 All data for this period Nov 30, 1984-Jan 28, 1985 All data for this period Jan 29, 1985-Mar 29, 1985 All data for this period Mar 30, 1985-May 28, 1985 All data for this period May 29, 1985-Jul 27, 1985 All data for this period Jul 28, 1985-Sep 25, 1985 All data for this period Sep 26, 1985-Nov 24, 1985 All data for this period Nov 25, 1985-Jan 23, 1986 All data for this period Jan 24, 1986-Mar 24, 1986 All data for this period Mar 25, 1986-May 23, 1986 All data for this period May 24, 1986-Jul 22, 1986 All data for this period Jul 23, 1986-Sep 20, 1986 All data for this period Sep 21, 1986-Nov 19, 1986 All data for this period Nov 20, 1986-Jan 18, 1987 All data for this period Jan 19, 1987-Mar 19, 1987 All data for this period Mar 20, 1987-May 18, 1987 All data for this period May 19, 1987-Jul 17, 1987 All data for this period Jul 18, 1987-Sep 15, 1987 All data for this period Sep 16, 1987-Nov 14, 1987 All data for this period Nov 15, 1987-Jan 13, 1988 All data for this period Jan 14, 1988-Mar 13, 1988 All data for this period Sep 10, 1988-Nov 08, 1988 All data for this period Nov 09, 1988-Jan 07, 1989 All data for this period Apr 28, 1991-Jun 26, 1991 All data for this period Jun 27, 1991-Aug 25, 1991 All data for this period Aug 26, 1991-Oct 24, 1991 All data for this period Oct 25, 1991-Dec 23, 1991 All data for this period Dec 24, 1991-Feb 21, 1992 All data for this period Feb 22, 1992-Apr 21, 1992 All data for this period Apr 22, 1992-Jun 20, 1992 All data for this period Jun 21, 1992-Aug 19, 1992 All data for this period Aug 20, 1992-Oct 18, 1992 All data for this period Oct 19, 1992-Dec 17, 1992 All data for this period Dec 18, 1992-Feb 15, 1993 All data for this period Feb 16, 1993-Apr 16, 1993 All data for this period Apr 17, 1993-Jun 15, 1993 All data for this period Jun 16, 1993-Aug 14, 1993 All data for this period Aug 15, 1993-Oct 13, 1993 All data for this period Oct 14, 1993-Dec 12, 1993 All data for this period Dec 13, 1993-Feb 10, 1994 All data for this period Feb 11, 1994-Apr 11, 1994 All data for this period Apr 12, 1994-Jun 10, 1994 All data for this period Jun 11, 1994-Aug 09, 1994 All data for this period Aug 10, 1994-Oct 08, 1994 All data for this period Oct 09, 1994-Dec 07, 1994 All data for this period Dec 08, 1994-Feb 05, 1995 All data for this period Feb 06, 1995-Apr 06, 1995 All data for this period Apr 07, 1995-Jun 05, 1995 All data for this period Jun 06, 1995-Aug 04, 1995 All data for this period Aug 05, 1995-Oct 03, 1995 All data for this period Oct 04, 1995-Dec 02, 1995 All data for this period Dec 03, 1995-Jan 31, 1996 All data for this period Feb 01, 1996-Mar 31, 1996 All data for this period Apr 01, 1996-May 30, 1996 All data for this period May 31, 1996-Jul 29, 1996 All data for this period Jul 30, 1996-Sep 27, 1996 All data for this period Sep 28, 1996-Nov 26, 1996 All data for this period Nov 27, 1996-Jan 25, 1997 All data for this period Jan 26, 1997-Mar 26, 1997 All data for this period Mar 27, 1997-May 25, 1997 All data for this period May 26, 1997-Jul 24, 1997 All data for this period Jul 25, 1997-Sep 22, 1997 All data for this period Sep 23, 1997-Nov 21, 1997 All data for this period Nov 22, 1997-Jan 20, 1998 All data for this period Jan 21, 1998-Mar 21, 1998 All data for this period Mar 22, 1998-May 20, 1998 All data for this period May 21, 1998-Jul 19, 1998 All data for this period Jul 20, 1998-Sep 17, 1998 All data for this period Sep 18, 1998-Nov 16, 1998 All data for this period Nov 17, 1998-Jan 15, 1999 All data for this period Jan 16, 1999-Mar 16, 1999 All data for this period Mar 17, 1999-May 15, 1999 All data for this period May 16, 1999-Jul 14, 1999 All data for this period Jul 15, 1999-Sep 12, 1999 All data for this period Sep 13, 1999-Nov 11, 1999 All data for this period Nov 12, 1999-Jan 10, 2000 All data for this period Jan 11, 2000-Mar 10, 2000 All data for this period Mar 11, 2000-May 09, 2000 All data for this period May 10, 2000-Jul 08, 2000 All data for this period Jul 09, 2000-Sep 06, 2000 All data for this period Sep 07, 2000-Nov 05, 2000 All data for this period Nov 06, 2000-Jan 04, 2001 All data for this period Jan 05, 2001-Mar 05, 2001 All data for this period Mar 06, 2001-May 04, 2001 All data for this period May 05, 2001-Jul 03, 2001 All data for this period Jul 04, 2001-Sep 01, 2001 All data for this period Sep 02, 2001-Oct 31, 2001 All data for this period Nov 01, 2001-Dec 30, 2001 All data for this period Dec 31, 2001-Feb 28, 2002 All data for this period Mar 01, 2002-Apr 29, 2002 All data for this period Apr 30, 2002-Jun 28, 2002 All data for this period Jun 29, 2002-Aug 27, 2002 All data for this period Aug 28, 2002-Oct 26, 2002 All data for this period Oct 27, 2002-Dec 25, 2002 All data for this period Dec 26, 2002-Feb 23, 2003 All data for this period Feb 24, 2003-Apr 24, 2003 All data for this period Apr 25, 2003-Jun 23, 2003 All data for this period Jun 24, 2003-Aug 22, 2003 All data for this period Aug 23, 2003-Oct 21, 2003 All data for this period Oct 22, 2003-Dec 20, 2003 All data for this period Dec 21, 2003-Feb 18, 2004 All data for this period Feb 19, 2004-Apr 18, 2004 All data for this period Apr 19, 2004-Jun 17, 2004 All data for this period Jun 18, 2004-Aug 16, 2004 All data for this period Aug 17, 2004-Oct 15, 2004 All data for this period Oct 16, 2004-Dec 14, 2004 All data for this period Dec 15, 2004-Feb 12, 2005 All data for this period Feb 13, 2005-Apr 13, 2005 All data for this period Apr 14, 2005-Jun 12, 2005 All data for this period Jun 13, 2005-Aug 11, 2005 All data for this period Aug 12, 2005-Oct 10, 2005 All data for this period Oct 11, 2005-Dec 09, 2005 All data for this period Dec 10, 2005-Feb 07, 2006 All data for this period Feb 08, 2006-Apr 08, 2006 All data for this period Apr 09, 2006-Jun 07, 2006 All data for this period Jun 08, 2006-Aug 06, 2006 All data for this period Aug 07, 2006-Oct 05, 2006 All data for this period Oct 06, 2006-Dec 04, 2006 All data for this period Dec 05, 2006-Feb 02, 2007 All data for this period Feb 03, 2007-Apr 03, 2007 All data for this period Apr 04, 2007-Jun 02, 2007 All data for this period Jun 03, 2007-Aug 01, 2007 All data for this period Aug 02, 2007-Sep 30, 2007 All data for this period
Summary Plots for DMSP Estimated Hemispheric Power
The DMSP-F11 1992 estimated values were added in Oct 2003, but not replotted.
(F11 was missing before in 1992.) F8-15 were recalibrated in June 2005, but
plots only redone for 2004 and later.
Jan 01, 1983-Mar 01, 1983 All data for this period Mar 02, 1983-Apr 30, 1983 All data for this period May 01, 1983-Jun 29, 1983 All data for this period Jun 30, 1983-Aug 28, 1983 All data for this period Aug 29, 1983-Oct 27, 1983 All data for this period Oct 28, 1983-Dec 26, 1983 All data for this period Dec 27, 1983-Feb 24, 1984 All data for this period Feb 25, 1984-Apr 24, 1984 All data for this period Apr 25, 1984-Jun 23, 1984 All data for this period Jun 24, 1984-Aug 22, 1984 All data for this period Aug 23, 1984-Oct 21, 1984 All data for this period Oct 22, 1984-Dec 20, 1984 All data for this period Dec 21, 1984-Feb 18, 1985 All data for this period Feb 19, 1985-Apr 19, 1985 All data for this period Apr 20, 1985-Jun 18, 1985 All data for this period Jun 19, 1985-Aug 17, 1985 All data for this period Aug 18, 1985-Oct 16, 1985 All data for this period Oct 17, 1985-Dec 15, 1985 All data for this period Dec 16, 1985-Feb 13, 1986 All data for this period Feb 14, 1986-Apr 14, 1986 All data for this period Apr 15, 1986-Jun 13, 1986 All data for this period Jun 14, 1986-Aug 12, 1986 All data for this period Aug 13, 1986-Oct 11, 1986 All data for this period Oct 12, 1986-Dec 10, 1986 All data for this period Dec 11, 1986-Feb 08, 1987 All data for this period Feb 09, 1987-Apr 09, 1987 All data for this period Apr 10, 1987-Jun 08, 1987 All data for this period Jun 09, 1987-Aug 07, 1987 All data for this period Aug 08, 1987-Oct 06, 1987 All data for this period Oct 07, 1987-Dec 05, 1987 All data for this period Dec 06, 1987-Feb 03, 1988 All data for this period Feb 04, 1988-Apr 03, 1988 All data for this period Apr 04, 1988-Jun 02, 1988 All data for this period Jun 03, 1988-Aug 01, 1988 All data for this period Aug 02, 1988-Sep 30, 1988 All data for this period Oct 01, 1988-Nov 29, 1988 All data for this period Nov 30, 1988-Jan 28, 1989 All data for this period Jan 29, 1989-Mar 29, 1989 All data for this period Mar 30, 1989-May 28, 1989 All data for this period May 29, 1989-Jul 27, 1989 All data for this period Jul 28, 1989-Sep 25, 1989 All data for this period Sep 26, 1989-Nov 24, 1989 All data for this period Nov 25, 1989-Jan 23, 1990 All data for this period Jan 24, 1990-Mar 24, 1990 All data for this period Mar 25, 1990-May 23, 1990 All data for this period May 24, 1990-Jul 22, 1990 All data for this period Jul 23, 1990-Sep 20, 1990 All data for this period Sep 21, 1990-Nov 19, 1990 All data for this period Nov 20, 1990-Jan 18, 1991 All data for this period Jan 19, 1991-Mar 19, 1991 All data for this period Mar 20, 1991-May 18, 1991 All data for this period May 19, 1991-Jul 17, 1991 All data for this period Jul 18, 1991-Sep 15, 1991 All data for this period Sep 16, 1991-Nov 14, 1991 All data for this period Nov 15, 1991-Jan 13, 1992 All data for this period Jan 14, 1992-Mar 13, 1992 All data for this period Mar 14, 1992-May 12, 1992 All data for this period May 13, 1992-Jul 11, 1992 All data for this period Jul 12, 1992-Sep 09, 1992 All data for this period Sep 10, 1992-Nov 08, 1992 All data for this period Nov 09, 1992-Jan 07, 1993 All data for this period Jan 08, 1993-Mar 08, 1993 All data for this period Mar 09, 1993-May 07, 1993 All data for this period May 08, 1993-Jul 06, 1993 All data for this period Jul 07, 1993-Sep 04, 1993 All data for this period Sep 05, 1993-Nov 03, 1993 All data for this period Nov 04, 1993-Jan 02, 1994 All data for this period Jan 03, 1994-Mar 03, 1994 All data for this period Mar 04, 1994-May 02, 1994 All data for this period May 03, 1994-Jul 01, 1994 All data for this period Jul 02, 1994-Aug 30, 1994 All data for this period Aug 31, 1994-Oct 29, 1994 All data for this period Oct 30, 1994-Dec 28, 1994 All data for this period Dec 29, 1994-Feb 26, 1995 All data for this period Feb 27, 1995-Apr 27, 1995 All data for this period Apr 28, 1995-Jun 26, 1995 All data for this period Jun 27, 1995-Aug 25, 1995 All data for this period Aug 26, 1995-Oct 24, 1995 All data for this period Oct 25, 1995-Dec 23, 1995 All data for this period Dec 24, 1995-Feb 21, 1996 All data for this period Feb 22, 1996-Apr 21, 1996 All data for this period Apr 22, 1996-Jun 20, 1996 All data for this period Jun 21, 1996-Aug 19, 1996 All data for this period Aug 20, 1996-Oct 18, 1996 All data for this period Oct 19, 1996-Dec 17, 1996 All data for this period Dec 18, 1996-Feb 15, 1997 All data for this period Feb 16, 1997-Apr 16, 1997 All data for this period Apr 17, 1997-Jun 15, 1997 All data for this period Jun 16, 1997-Aug 14, 1997 All data for this period Aug 15, 1997-Oct 13, 1997 All data for this period Oct 14, 1997-Dec 12, 1997 All data for this period Dec 13, 1997-Feb 10, 1998 All data for this period Feb 11, 1998-Apr 11, 1998 All data for this period Apr 12, 1998-Jun 10, 1998 All data for this period Jun 11, 1998-Aug 09, 1998 All data for this period Aug 10, 1998-Oct 08, 1998 All data for this period Oct 09, 1998-Dec 07, 1998 All data for this period Dec 08, 1998-Feb 05, 1999 All data for this period Feb 06, 1999-Apr 06, 1999 All data for this period Apr 07, 1999-Jun 05, 1999 All data for this period Jun 06, 1999-Aug 04, 1999 All data for this period Aug 05, 1999-Oct 03, 1999 All data for this period Oct 04, 1999-Dec 02, 1999 All data for this period Dec 03, 1999-Jan 31, 2000 All data for this period Feb 01, 2000-Mar 31, 2000 All data for this period Apr 01, 2000-May 30, 2000 All data for this period May 31, 2000-Jul 29, 2000 All data for this period Jul 30, 2000-Sep 27, 2000 All data for this period Sep 28, 2000-Nov 26, 2000 All data for this period Nov 27, 2000-Jan 25, 2001 All data for this period Jan 26, 2001-Mar 26, 2001 All data for this period Mar 27, 2001-May 25, 2001 All data for this period May 26, 2001-Jul 24, 2001 All data for this period Jul 25, 2001-Sep 22, 2001 All data for this period Sep 23, 2001-Nov 21, 2001 All data for this period Nov 22, 2001-Jan 20, 2002 All data for this period Jan 21, 2002-Mar 21, 2002 All data for this period
