Slopes (m) for low altitude experiments, foE only ================================================== arcd* dlayer* m is the slope of the regression curve fitted to the scatter plot of EISCAT peak plasma frequency versus Dynasonde peak plasma frequency (foE or foF2). In the following dsnd and dyna refer to two different ways of getting foF2 from the Dynasonde soundings. Dyna was an early analysis using ui_cal MATLAB script developed at RAL. It was later superceded by the automatic analysis of the Dynasonde data using DSND software (developed by J. W. Wright and N. Zabotin) and calib_ne.m scripts by Ingemar Haggstrom. m<1 means ISR densities are less than Ionosonde densities. A magic_const of 1.0 is assumed unless otherwise stated. ******************************************************** UHF slopes (m) for low altitude experiments =========================================== dsnd analysis date modulation calib_ne(foE) magic_const UHF m +/- error ------------------------------------------------------ 22 Jul 2002 dlayer 0.33 ±0.05 24 Jul 2002 dlayer 0.83 ±0.05 25 Jul 2002 dlayer 0.54 ±0.05 01 Aug 2002 dlayer 0.40 ±0.12 02 Aug 2002 dlayer 0.63 ±0.09 dsnd analysis date modulation calib_ne(foE) magic_const UHF m +/- error ------------------------------------------------------ 27 Jun 2003 dlayer 0.63 ±0.09 30 Jun 2003 arcd 0.68 ±0.08 01 Jul 2003 arcd 0.66 ±0.18 02 Jul 2003 arcd 0.70 ±0.05 01 Aug 2003 arcd 0.43 ±0.06 04 Aug 2003 arcd 0.59 ±0.11 28 Oct 2003 dlayer no dynasond data 29 Oct 2003 arcd no dynasond data dsnd analysis date modulation calib_ne(foE) magic_const UHF m +/- error ------------------------------------------------------ 05 Jul 2004 arcd 1.06 ±0.06 1.0 foE, not fEs, hand-checked 06 Jul 2004 arcd 0.95 ±0.04 1.0 foE, not fEs, hand-checked 07 Jul 2004 arcd 1.10 ±0.08 1.0 foE, not fEs, hand-checked 08 Jul 2004 arcd 1.04 ±0.14 1.0 foE, not fEs, hand-checked 11 Jul 2004 arcd 0.99 ±0.12 1.47 foE, hand-checked; low Tx power 12 Jul 2004 arcd 0.93 ±0.10 1.0 foE, not fEs, hand-checked 13 Jul 2004 arcd 0.79 ±0.04 1.0 foE, not fEs, hand-checked 14 Jul 2004 arcd 0.75 ±0.05 1.0 foE, hand-checked 15 Jul 2004 arcd 0.78 ±0.14 1.0 foE, hand-checked 28 Oct 2004 arcd 0.47 ±0.01 1.0 foE 29 Oct 2004 arcd 0.82 ±0.14 1.0 foE 01 Nov 2004 arcd 0.38 ±0.05 1.0 foE dsnd analysis date modulation calib_ne(foE) magic_const UHF m +/- error ------------------------------------------------------ 12 Jan 2005 arcd 0.78 ±0.06 1.0 13 Jan 2005 arcd 0.87 ±0.02 1.0 14 Jan 2005 arcd 1.08 ±0.08 1.0 17 Jan 2005 arcd Absorption 1.0 29 Jun 2005 arcd 0.83 ±0.05 1.0 04 Jul 2005 arcd 1.01 ±0.12 1.0 foE, not fEs, hand-checked 05 Jul 2005 arcd 1.15 ±0.12 1.0 foE, not fEs, hand-checked 06 Jul 2005 arcd 1.10 ±0.06 1.0 foE, not fEs, hand-checked 07 Jul 2005 arcd 1.04 ±0.04 1.0 foE, not fEs, hand-checked 08 Jul 2005 arcd 1.03 ±0.07 1.0 foE, not fEs, hand-checked 09 Jul 2005 arcd 1.07 ±0.14 1.0 foE, not fEs, hand-checked 10 Jul 2005 arcd 0.77 ±0.08 1.0 foE, not fEs, hand-checked dsnd analysis date modulation calib_ne(foE) magic_const UHF m +/- error ------------------------------------------------------ 28 Jul 2006 arcd 0.72 ±0.1 0.8 foE, not fEs, hand-checked 29 Jul 2006 arcd 0.95 ±0.38 0.8 foE, not fEs, hand-checked 03 Aug 2006 arcd 0.89 ±0.38 0.8 foE, not fEs, hand-checked 12 Aug 2006 arcd 0.82 ±0.10 0.8 foE, not fEs, hand-checked 08 Sep 2006 arcd 0.89 ±0.09 0.8 foE, hand-checked 12 Sep 2006 arcd 0.66 ±0.09 0.8 foE, hand-checked 13 Sep 2006 arcd 0.57 ±0.23 0.8 foE, poor, hand-checked 14 Sep 2006 arcd 0.54 ±0.06 0.8 foE, poor, hand-checked 15 Sep 2006 arcd 0.48 ±0.08 0.8 foE, poor, hand-checked 16 Sep 2006 arcd 0.75 ±0.11 0.8 foE, poor, hand-checked 17 Sep 2006 arcd 0.87 ±0.10 0.8 foE, hand-checked 24 Oct 2006 arcd 0.75 ±0.06 0.8 foE, hand-checked 25 Nov 2006 arcd 0.63 ±0.05 0.8 dsnd analysis date modulation calib_ne(foE) magic_const UHF m +/- error ------------------------------------------------------ 28 Jun 2007 arcd 1.12 ±0.03 0.8 foE, hand-checked (suggests 0.71) 10 Jul 2007 arcd 1.03 ±0.10 0.8 foE, hand-checked (suggests 0.78) 13 Jul 2007 arcd 1.05 ±0.11 0.8 foE, hand-checked (suggests 0.76) 16 Jul 2007 arcd 1.12 ±0.07 0.8 foE, hand-checked 17 Jul 2007 arcd 0.76 ±0.25 0.8 foE, (suggests 1.05) 18 Jul 2007 arcd 0.67 ±0.16 0.8 foE, (suggests 1.19) 01 Aug 2007 arcd 0.41 ±0.15 0.8 foE (suggest 1.96) 02 Aug 2007 arcd 1.00 ±0.25 0.8 foE (suggest 0.80) 03 Aug 2007 arcd 0.76 ±0.15 0.8 foE (suggest 1.05) 04 Aug 2007 arcd 0.57 ±0.15 0.8 foE (suggest 1.41) 05 Aug 2007 arcd 0.54 ±0.26 0.8 foE (suggest 1.48) 06 Aug 2007 arcd 0.85 ±0.14 0.8 foE (suggest 0.94) 07 Aug 2007 arcd 0.88 ±0.37 0.8 foE (suggest 0.91) 08 Aug 2007 arcd 0.89 ±0.14 0.8 foE (suggest 0.90) 09 Aug 2007 arcd 0.96 ±0.13 0.8 foE (suggest 0.84) 10 Aug 2007 arcd 1.48 ±0.15 0.8 foE (suggest 0.54) 11 Aug 2007 arcd 0.88 ±0.12 0.8 foE (suggest 0.91) 12 Aug 2007 arcd 1.20 ±0.22 0.8 foE (suggest 0.67) 13 Aug 2007 arcd 1.47 ±0.14 0.8 foE (suggest 0.54) 14 Aug 2007 arcd 1.13 ±0.03 0.8 foE (suggest 0.71) 10 Oct 2007 arcd cp1 0.74 ±0.05 0.8 foE, hand-checked (suggests 1.07)snow in ant ? 13 Oct 2007 arcd 0.87 ±0.15 0.8 foE, hand-checked 14 Oct 2007 arcd 0.86 ±0.06 0.8 foE, hand-checked dsnd analysis date modulation calib_ne(foE) magic_const UHF m +/- error ------------------------------------------------------ 16 Jun 2008 arcd 1.15 ±0.15 0.8 foE (suggest 0.69) 18 Jun 2008 arcd 1.10 ±0.03 0.8 foE (suggest 0.73) 19 Jun 2008 arcd 1.08 ±0.18 0.8 foE (suggest 0.74) 27 Jun 2008 arcd 1.07 ±0.13 0.8 foE (suggest 0.75) 30 Jun 2008 arcd 1.21 ±0.41 0.8 foE (suggest 0.66) 01 Jul 2008 arcd 1.04 ±0.19 0.8 foE (suggest 0.77) 02 Jul 2008 arcd 1.04 ±0.04 0.8 foE (suggest 0.77) 03 Jul 2008 arcd 1.13 ±0.13 0.8 foE (suggest 0.7 ) 04 Jul 2008 arcd 1.15 ±0.08 0.8 foE (suggest 0.70) 05 Jul 2008 arcd 0.91 ±0.22 0.8 foE (suggest 0.88) 06 Jul 2008 arcd 1.02 ±0.08 0.8 foE (suggest 0.79) 07 Jul 2008 arcd 0.97 ±0.09 0.8 foE (suggest 0.82) 03 Nov 2009 arcd 1.03 ±0.14 0.8 foE (suggest 0.78) 12 Dec 2008 manda 0.72 ±0.28 0.8 dsnd analysis date modulation calib_ne(foE) magic_const UHF m +/- error ------------------------------------------------------ 11 Mar 2009 arcd 0.99 ±0.13 0.8 foE (suggest 0.81) (hand checked) 12 Mar 2009 arcd 1.18 ±0.12 0.8 foE (suggest 0.68) 11 Jun 2009 arcd 1.19 ±0.08 0.8 foE (suggest 0.68) 12 Jun 2009 arcd 1.29 ±0.06 0.8 foE (suggest 0.62) 20 Jul 2009 arcd 1.24 ±0.15 0.8 foE (suggest 0.65) 21 Jul 2009 arcd . ± . 0.8 foE (suggest 0. ) 22 Jul 2009 arcd 0.98 ±0.13 0.8 foE (suggest 0.81) 23 Jul 2009 arcd 0.74 ±0.16 0.8 foE (suggest 1.08) 24 Jul 2009 arcd 0.95 ±0.21 0.8 foE (suggest 0.85) 25 Jul 2009 arcd 0.91 ±0.08 0.8 foE (suggest 0.88) 26 Jul 2009 arcd . ± . 0.8 foE (suggest 0. ) 27 Jul 2009 arcd . ± . 0.8 foE (suggest 0. ) 28 Jul 2009 arcd . ± . 0.8 foE (suggest 0. ) 30 Jul 2009 arcd 0.96 ±0. 0.8 foE (suggest 0. ) 31 Jul 2009 arcd . ± . 0.8 foE (suggest 0. ) 01 Aug 2009 arcd . ± . 0.8 foE (suggest 0. ) 14 Dec 2009 arcd 0.63 ±0.24 1.14 foE (suggest 1.82) 17 Dec 2009 arcd 1.04 ±0.62 1.14 foE (suggest 1.09) dsnd analysis date modulation calib_ne(foE) magic_const 2010 UHF m +/- error ------------------------------------------------------ 01 Jun 2010 arcd 0.73 ±0.06 0.7 foE (suggest 0.96) 12 Dec 2010 arcd 0.64 ±0.09 0.7 foE (suggest 1.09) dsnd analysis date modulation calib_ne(foE) magic_const 2013 UHF m +/- error ------------------------------------------------------ 27 Jun 2013 arcd 1.06 ±0.58 0.7 foE (suggest 0.66) 03 Jul 2013 arcd 1.38 ±0.13 0.7 foE (suggest 0.51) 04 Jul 2013 arcd 1.52 ±0.1 0.7 foE (suggest 0.46) dsnd analysis date modulation calib_ne(foE) magic_const 2014 UHF m +/- error ------------------------------------------------------ 23 Sep 2014 arcd 0.86 ±0.01 0.7 foE (suggest 0.81)