IRF Kiruna

IRF Umeå

IRF Uppsala

IRF Lund

Sprite-Attributed Infrasonic Chirps

During a particular night of May 1995 an unusual type of infrasonic signatures: few seconds in duration, rising in frequency from about 0.5 - 8 Hz was observed. Since the observations were associated with the passage of an intense thunderstorm area, it was plausible to assume that the phenomenon could be related to the thunderstorm activity. One possibility was that the infrasonic chirps were produced by the high-altitude transient luminous event such as a red sprite. That particular night was studied in detail and results were presented several years later (Liszka 2003, 2004). The occurrence of infrasonic emissions from sprites was recently confirmed by simultaneous optical observations of sprites and infrasound over Europe (Farges et al., 2005), the long-term trend of sprite-associated infrasound signatures has been studied using the data from the Swedish-Finnish Infrasound Network (Liszka and Hobara, 2006).
The present page contains results of observations of infrasonic chirps from Jämtön-station, where the chirps are most frequent. Approximate geographic coordinates of Jämtön station are: 65.8N, 22.5E.
The list of observations and the atlas of wavelet scalograms will be continuously updated.


References:

Farges, T., E. Blanc, A. Le Pichon, T. Neubert, and T. H. Allin, 2005, Identification of infrasound produced by sprites during the Sprite2003 campaign, Geophys. Res. Lett., 32, doi:10.1029/2004GL021212
Liszka, L., 2003, On the Possible Infrasound Generation by Sprites. Paper presented at the AGU Fall Meeting, 2003, San Francisco.
Liszka, L., 2004, On the possible infrasound generation by sprites, Journ. of Low Frequency Noise, Vibration and Active Control, 23, 85-93.
Liszka, L. and Hobara, Y., 2006, Sprite-attributed infrasonic chirps - their detection, occurrence and properties between 1994 and 2004, JASTP, 68, 1179-1188.


Time scale (in sec) of plots corresponding to the first 32 dilations:

Dilation	Time scale (s)
1	0.1112
2	0.1186507
3	0.1266007
4	0.1350833
5	0.1441342
6	0.1537917
7	0.1640961
8	0.175091
9	0.1868227
10	0.1993403
11	0.2126967
12	0.226948
13	0.2421542
14	0.2583792
15	0.2756914
16	0.2941635
17	0.3138733
18	0.3349037
19	0.3573432
20	0.3812862
21	0.4068335
22	0.4340925
23	0.463178
24	0.4942122
25	0.5273259
26	0.5626583
27	0.600358
28	0.6405837
29	0.6835046
30	0.7293015
31	0.7781668
32	0.8303062

Summary of infrasonic chirps data, explanation of columns:

Column	Description
1.	File name (without the first character which is the station name - here all "J")
2.	Year
3.	Month
4.	Day
5.	Time Z at the beginning of a chirp (UT in minutes after midnight)
6.	Slope SL of the chirp in the time scale. elapsed time domain SL = HLEN/DIFF
7.	Duration of the chirp in number of samples, HLEN
8.	STARTD start dilation of the chirp; see the table of time scale values corresponding to each dilation number
9.	DIFF, the difference between the last and first dilation number +1
10.	Time Z corresponding to the maximum cross-correlation between microphones within the array
11.	Azimuth of arrival at the maximum cross-correlation
12.	Phase velocity at the maximum cross-correlation
13.	Average amplitude (in arbitrary A/D units) at the maximum cross-correlation
14.	The maximum product of all 3 cross-correlations within the array

List of observed chirps:

Col 1    2    3  4     5      6    7  8  9    10     11    12     13     14
5010336 1995 01 03 1086.965  4.7  52 24 11 1087.024  97.4 331.0  13747 0.5267
5011132 1995 01 11  962.856  8.1  65 30  8  962.915  99.6 330.2  16012 0.5523
5052638 1995 05 26 1151.940  8.3  58 16  7 1151.999 163.9 329.5  10697 0.5051
5052640 1995 05 26 1209.384  7.2  87 21 12 1209.399 161.8 331.6   7358 0.4943
5052640 1995 05 26 1218.834  6.8  82 22 12 1218.864 131.9 339.9   7052 0.3331
5052641 1995 05 26 1230.568  7.6  61 15  8 1230.568 164.1 329.4   7967 0.4745
5052641 1995 05 26 1239.119  7.5  97 19 13 1239.193 128.0 339.1   6818 0.2619
5052641 1995 05 26 1242.184  8.3  75 15  9 1242.258 163.1 330.4   6320 0.3793
5052641 1995 05 26 1243.594  8.2  74 21  9 1243.668 163.1 329.2  12205 0.5680
5052641 1995 05 26 1243.594  7.8  47 12  6 1243.668 163.1 329.2  12205 0.5680
5052641 1995 05 26 1244.687  6.6  46 24  7 1244.731 142.5 343.0   6075 0.3396
5052641 1995 05 26 1245.567  7.0  49 14  7 1245.581 163.1 328.1  12199 0.5303
5052641 1995 05 26 1246.794  7.8  70 16  9 1246.808 160.6 329.1   6376 0.3145
5052641 1995 05 26 1248.584  7.3  66 19  9 1248.614 127.6 348.8   5027 0.1608
5052641 1995 05 26 1249.246  7.0  42 11  6 1249.291 163.3 330.9  10817 0.4952
5052641 1995 05 26 1250.790  8.2 107 19 13 1250.819 163.6 328.9  15359 0.5665
5052641 1995 05 26 1257.700  5.9  53 16  9 1257.700 125.2 352.5   6305 0.2820
5052642 1995 05 26 1268.199  5.9  53 25  9 1268.244 131.2 329.5  11606 0.5368
5052642 1995 05 26 1268.781  6.5  39 15  6 1268.781 158.9 326.5   9967 0.3412
5052642 1995 05 26 1272.635  5.9  89 21 15 1272.665 158.9 330.4   9863 0.3632
5052642 1995 05 26 1277.643  5.3  48 17  9 1277.672 121.9 349.6   6996 0.3327
5052642 1995 05 26 1283.937  5.1  36 16  7 1283.937 122.4 349.9   6006 0.2213
5052643 1995 05 26 1290.768  6.0  54 21  9 1290.827 123.3 349.1   8194 0.4892
5052643 1995 05 26 1296.248  5.7  91 22 16 1296.248 134.5 333.8   7109 0.3521
5052643 1995 05 26 1302.235  4.7  80 23 17 1302.280 156.4 327.4   7326 0.3121
5052643 1995 05 26 1313.213  5.9  47 14  8 1313.257 118.3 351.7   8891 0.4036
5090300 1995 09 03   26.982  3.9  77 28 20   27.027 179.5 325.0   6170 0.5348
5090341 1995 09 03 1245.608  8.0  64 23  8 1245.668 184.2 327.5   5328 0.3696
5090341 1995 09 03 1247.642  6.3  95 23 15 1247.642 184.6 324.0  12779 0.6155
5090341 1995 09 03 1249.903  5.8  93 22 16 1249.903 184.7 327.0  11978 0.5013
5090342 1995 09 03 1270.729  5.2  62 20 12 1270.773 186.6 324.9   8312 0.4089
5090342 1995 09 03 1286.735  5.1  77 21 15 1286.750 185.6 328.5   6960 0.4273
5111632 1995 11 16  970.632  4.9  74 30 15  970.706  98.3 332.8  17245 0.5129
5112819 1995 11 28  586.185  2.7  48 29 18  586.230 195.3 304.0  12095 0.6147
5122032 1995 12 20  968.689  7.6  99 30 13  968.719 100.5 320.1  20654 0.6257
5122132 1995 12 21  982.099  6.1  98 30 16  982.129  99.4 315.4  16912 0.5759
6011724 1996 01 17  722.438  4.1  57 30 14  722.497  99.4 339.5  13675 0.5684
6020532 1996 02 05  967.332  4.8  62 30 13  967.332  98.5 340.7  11110 0.5684
6022018 1996 02 20  546.932 11.9 119 25 10  546.977 197.7 300.0  23212 0.5927
6022112 1996 02 21  371.554  4.0  48 26 12  371.613 197.7 307.3  10767 0.5229
6031318 1996 03 13  545.602 10.4 114 25 11  545.943 195.7 320.7  12466 0.4468
6031518 1996 03 15  544.380  5.7  86 24 15  544.572 169.2 321.7  19713 0.5729
6031518 1996 03 15  544.555  5.7  68 21 12  544.555 169.2 321.6  19977 0.5705
6031518 1996 03 15  545.201  5.4  86 24 16  545.231 169.1 321.3  18343 0.5483
6031520 1996 03 15  625.510  4.8  86 25 18  625.555 168.0 325.4  23037 0.6295
6031520 1996 03 15  625.546  4.7  47 17 10  625.828 168.1 326.0  18349 0.5935
6031520 1996 03 15  625.668  4.6  65 22 14  625.949 168.1 326.0  18349 0.5935
6031520 1996 03 15  625.825  4.7  84 24 18  625.869 168.0 325.9  18547 0.5927
6062021 1996 06 20  639.830  5.4  76 28 14  639.874 176.8 315.2  11322 0.4952
6062030 1996 06 20  914.754  5.8  46 14  8  914.754 170.9 325.4   5508 0.2430
6062031 1996 06 20  948.906  4.4  53 18 12  948.951 155.4 324.9  11128 0.4268
7060615 1997 06 06  456.588  4.9  64 30 13  456.618 184.1 320.8  14736 0.5118
7122323 1997 12 23  715.964  7.3  66 26  9  716.231  98.2 333.9  16841 0.5901
7122323 1997 12 23  716.192  7.0  84 28 12  716.251  97.9 335.0  18885 0.5884
8011209 1998 01 12  275.240  4.3  47 29 11  275.314 101.3 328.7   9470 0.5864
8012024 1998 01 20  736.331  8.2  74 23  9  736.390 122.4 320.4  16765 0.5084
8012035 1998 01 20 1069.312  3.3  50 29 15 1069.342 199.7 302.6  13118 0.5715
8020124 1998 02 01  732.651  4.3  43 27 10  732.666 205.8 301.0   9228 0.6017
8020124 1998 02 01  733.622  4.8  43 27  9  733.637 205.6 305.0   9608 0.6204
8020133 1998 02 01 1003.156  5.2  52 26 10 1003.201 205.8 295.4   7058 0.4958
8020133 1998 02 01 1005.331  5.8  58 25 10 1005.345 205.6 303.2   7804 0.5796
8020133 1998 02 01 1005.685  5.0  60 27 12 1006.026 205.6 294.8  10335 0.6128
8020133 1998 02 01 1005.986  5.5  60 26 11 1006.060 206.2 294.3  10392 0.6316
8020133 1998 02 01 1006.063  5.2  57 26 11 1006.122 206.1 295.2  10026 0.6267
8020133 1998 02 01 1006.145  5.7  51 26  9 1006.160 206.0 296.0   9876 0.6376
8062745 1998 06 27 1369.304  6.9  90 25 13 1369.348 176.7 320.8   4027 0.2414
8071229 1998 07 12  873.598  4.0  48 19 12  873.657 125.8 349.6   4972 0.2302
8071229 1998 07 12  893.689  3.8  45 22 12  893.719 134.8 343.8   5750 0.3400
8071230 1998 07 12  903.500  3.7  66 24 18  903.544 165.4 332.7  13022 0.5765
8071230 1998 07 12  907.160  3.5  35 18 10  907.190 131.9 345.3   8507 0.3734
8071230 1998 07 12  913.517  3.7  44 19 12  913.531 132.9 340.9   6930 0.2969
8071230 1998 07 12  916.085  2.6  37 20 14  916.159 145.4 348.5   8986 0.3869
9011101 1999 01 11   44.193  5.0  60 26 12   44.207 196.1 338.3   6432 0.6673
9012723 1999 01 27  717.681  6.8  81 27 12  717.756 117.9 297.7   9047 0.6279
9012724 1999 01 27  737.908  8.3  58 26  7  737.938 117.7 296.2   8321 0.6616
9021021 1999 02 10  649.691  7.0  77 28 11  649.720 154.7 336.4   5808 0.5856
9021025 1999 02 10  759.278  4.9  44 24  9  759.278 169.6 341.6  18088 0.4593
9021125 1999 02 11  758.358  7.1  50 26  7  758.447 175.0 340.6   6033 0.5721
9031224 1999 03 12  737.358  4.3  47 30 11  737.388 178.0 342.8  11599 0.6517
9041425 1999 04 14  773.202  6.6  59 23  9  773.202 176.6 342.7   5243 0.5606
9042125 1999 04 21  762.791  9.9  79 30  8  762.806 172.9 370.4   6955 0.4007
9060423 1999 06 04  703.586  3.6  50 24 14  703.631 176.3 340.9   3559 0.4563

0062128 2000 06 21  854.671  6.6  59 15  9  854.686 183.5 345.6   5230 0.3280
0062632 2000 06 26  988.291  3.9  58 25 15  988.320 140.5 331.5   3922 0.3077
0100925 2000 10 09  768.451  6.1  79 24 13  768.481 185.1 353.9  14410 0.5072
1022732 2001 02 27  987.495  7.4  52 27  7  987.540  92.6 298.4  13739 0.6284
1031611 2001 03 16  338.111  3.6  36 25 10  338.111  40.8 314.6   3365 0.4705
1031611 2001 03 16  344.952  4.7  52 28 11  344.952  39.5 321.1  14445 0.4966
1040515 2001 04 05  467.983  5.5  55 25 10  468.072 162.2 342.6  17189 0.5530
1040515 2001 04 05  468.071  6.1  55 25  9  468.071 162.3 343.3  17161 0.5725
1040517 2001 04 05  527.469  4.5  63 26 14  527.558 165.6 339.3  21108 0.5126
1040517 2001 04 05  527.944  7.0  77 25 11  528.004 164.4 340.8  18661 0.6236
1042317 2001 04 23  530.106  5.9  77 20 13  530.135 167.9 339.0   5984 0.5052
1042421 2001 04 24  659.667  5.2  57 17 11  659.741 167.8 334.1   3645 0.3982
1042638 2001 04 26 1159.511  5.1  56 21 11 1159.526 105.0 322.0   3475 0.3807
1060824 2001 06 08  734.840  6.8  68 25 10  734.869 158.7 349.9  11461 0.4984
1071120 2001 07 11  625.320  4.1  45 17 11  625.350 150.3 365.5   8746 0.5253
1071120 2001 07 11  628.881  4.2  51 18 12  628.910 148.5 361.3   7193 0.5643
1121420 2001 12 14  620.050  5.7  57 30 10  620.109 103.2 303.3  13675 0.6269
2012828 2002 01 28  847.210  5.1  36 28  7  847.240 203.1 363.7   2916 0.2626
2012828 2002 01 28  848.891  4.6  37 28  8  848.920 199.5 339.9   3052 0.2660
2012828 2002 01 28  850.328  3.9  39 26 10  850.387 203.8 346.9   3074 0.2645
2012828 2002 01 28  852.189  3.8  45 27 12  852.219 205.0 342.5   3171 0.3308
2012828 2002 01 28  855.020  4.4  35 27  8  855.080 203.2 329.1   3308 0.2932
2012828 2002 01 28  856.407  4.0  36 26  9  856.422 206.1 335.7   3426 0.3410
2012828 2002 01 28  857.745  4.6  37 25  8  857.760 205.3 334.8   3420 0.3157
2012828 2002 01 28  859.055  4.0  44 27 11  859.084 203.9 342.9   3527 0.2421
2012828 2002 01 28  860.741  5.1  36 26  7  860.770 205.8 336.2   3483 0.3279
2012828 2002 01 28  863.226  3.8  42 27 11  863.256 203.3 332.0   3521 0.2973
2012828 2002 01 28  864.528  3.7  44 28 12  864.557 205.5 325.2   3672 0.3485
2051514 2002 05 15  438.044  6.6  53 17  8  438.118 169.9 347.9  14183 0.2332
2051516 2002 05 15  504.201  5.7  80 20 14  504.290 165.7 344.2  17894 0.4315
2070524 2002 07 05  735.569  5.6  95 30 17  735.614 181.0 356.6  11207 0.6585
3041201 2003 04 12   44.665  6.9  69 20 10   44.709 142.6 344.2   8921 0.3743
3041201 2003 04 12   44.808  7.0  63 20  9   44.808 139.6 343.1   8502 0.3688
3051314 2003 05 13  446.310  7.0  49 18  7  446.606 165.4 348.9   9853 0.5242
3051419 2003 05 14  586.158  7.2  65 30  9  586.218 166.8 365.5   8848 0.5421
3112542 2003 11 25 1264.219  5.9  71 30 12 1264.279  89.7 276.5   9051 0.6057
4042015 2004 04 20  461.937  4.0  56 22 14  461.952 165.4 344.8   8023 0.4688
4050413 2004 05 04  410.332  8.1  73 16  9  410.406 164.4 344.7  10211 0.4147
4050712 2004 05 07  361.883  7.6  99 19 13  361.913 164.2 346.0   6773 0.4822
4122733 2004 12 27 1019.442  2.4  39 26 16 1019.501 196.1 350.6   7065 0.4707
5013136 2005 01 31 1089.182  2.8  39 25 14 1089.182 195.9 350.9   8108 0.4649
5050524 2005 05 05  749.139  7.0 112 22 16  749.183 163.8 347.1  13046 0.4508
5120118 2005 12 01  552.316  5.2  57 29 11  552.331 207.8 378.8   4063 0.3783
6011011 2006 01 10  337.031  3.3  49 28 15  337.120 194.5 351.8   8556 0.5598
6021117 2006 02 11  527.925  6.3  69 29 11  527.955 202.2 415.0   4076 0.2415
6021118 2006 02 11  552.428  4.8  58 27 12  552.457 202.0 392.5   3917 0.2995
6021119 2006 02 11  594.301  3.8  64 30 17  594.345 204.3 407.9   4032 0.3081
6021216 2006 02 12  502.456  6.4  58 25  9  502.456 200.5 421.3   3788 0.2984
6021417 2006 02 14  513.943  5.1  41 25  8  513.957 206.9 362.2   4590 0.2090
6021417 2006 02 14  536.319  6.3  44 25  7  536.333 201.6 397.8   4243 0.1509
6021420 2006 02 14  608.206  5.6  50 26  9  608.220 198.3 365.2   3952 0.2084
6021420 2006 02 14  610.330  6.2  37 24  6  610.344 205.2 351.6   4255 0.3329
6021421 2006 02 14  645.964  6.1  43 25  7  646.038 204.8 325.5   3775 0.1787
6022122 2006 02 21  671.306  3.0  42 26 14  671.306 257.6 373.0   6613 0.5051
6030323 2006 03 03  706.510  3.8  42 30 11  706.510 179.6 357.2   7164 0.5505
6030326 2006 03 03  790.055  6.6  53 29  8  790.099 163.6 345.1   4050 0.2105
6030416 2006 03 04  483.409  3.7  41 22 11  483.409 156.2 336.0   5922 0.3960
6032712 2006 03 27  376.028  6.6  46 18  7  376.087 139.5 335.6   4840 0.3771
6042513 2006 04 25  400.453  4.0  48 19 12  400.453 165.4 338.2   9973 0.4913
6042526 2006 04 25  804.569  6.7  67 21 10  804.584 166.4 352.0   9698 0.3844
6042613 2006 04 26  398.985  8.6 103 18 12  398.985 168.0 341.5  11617 0.3759
6042812 2006 04 28  383.834  7.9 127 23 16  383.879 166.1 337.1  13366 0.5021
6043012 2006 04 30  376.850  7.5  60 14  8  376.850 168.6 343.6   6815 0.3016
6050212 2006 05 02  377.050  9.7 155 22 16  377.050 163.9 359.6  12815 0.4456
6050417 2006 05 04  519.289  4.7  47 17 10  519.319 164.2 344.9   6974 0.5202
7022322 2007 02 23  674.395 11.6  93 30  8  674.455 164.5 350.9   3700 0.6410
7022324 2007 02 23  749.596  8.4 143 30 17  749.907 180.7 330.8   7120 0.4798
7030526 2007 03 05  782.537  6.9  62 30  9  782.552 163.0 338.2   7835 0.6088
7051525 2007 05 15  777.601  3.3  40 20 12  777.645 152.8 353.1   5805 0.4100
8042919 2008 04 29  598.651  4.7  47 16 10  598.695 166.5 340.4   3960 0.5598
8050112 2008 05 01  388.550  9.1  73 14  8  388.580 165.2 342.0   5036 0.5567
8050119 2008 05 01  598.612  6.5  72 18 11  598.627 166.3 343.9   2770 0.4560
8050125 2008 05 01  779.687  7.7  77 19 10  779.820 165.7 344.3   4199 0.5554
9021146 2009 02 11 1398.660  3.6  57 29 16 1398.705 195.8 339.8   5491 0.6640
9022024 2009 02 20  738.589  4.9  59 30 12  738.633 181.1 360.8  10033 0.6104
9032702 2009 03 27   61.031  4.2  42 26 10   61.090 195.0 336.8   1339 0.1856
9040933 2009 04 09  992.756  9.7  58 29  6  992.800 160.5 361.2   2852 0.3060
9042617 2009 04 26  522.875  7.0  42 12  6  522.919 166.7 342.9   2973 0.4288
9042712 2009 04 27  379.469  5.1  56 17 11  379.469 167.4 335.2   6287 0.5338
9042725 2009 04 27  775.431  5.4  43 14  8  775.445 166.9 337.8   5284 0.5448
9050230 2009 05 02  900.655  8.0  88 17 11  900.684 164.6 342.2   3063 0.4776
9052726 2009 05 27  795.966  6.9  90 22 13  795.981 163.7 352.8   5486 0.5642

0011320 2010 01 13  607.352  6.2  37 21  6  607.396  97.4 310.2   2212 0.4504
0011322 2010 01 13  666.787  3.1  53 27 17  666.802 150.8 321.7   6770 0.4574
0020428 2010 02 04  841.923  5.4  38 28  7  841.938 133.9 309.3   3131 0.6164
0021021 2010 02 10  632.217  7.0  42 24  6  632.276 178.8 341.4   3626 0.7090
0021824 2010 02 18  732.381 13.5  81 28  6  732.455 135.4 305.9   3406 0.5359
0021824 2010 02 18  738.207  5.3  53 28 10  738.267 176.1 332.3   3102 0.6007
0042634 2010 04 26 1049.458 10.8  86 23  8 1049.488 167.9 349.9   6760 0.4087
0051725 2010 05 17  779.604  7.9  55 30  7  779.648 164.3 365.9   8194 0.3655
0051836 2010 05 18 1087.733  9.0  63 16  7 1087.793 177.8 350.0   9606 0.6614
0072702 2010 07 27   75.328  4.6  41 15  9   75.417 180.5 355.2   1931 0.3094
0072702 2010 07 27   78.162  4.0  36 16  9   78.221 181.0 354.0   2007 0.3828
0072702 2010 07 27   85.254  5.3  53 17 10   85.298 188.2 347.8   1818 0.2873
0072703 2010 07 27  116.435  3.5  46 20 13  116.509 179.6 347.8   3917 0.6459
0111817 2010 11 18  520.831  2.5  37 30 15  520.890 218.9 363.7   4915 0.5758
1021331 2011 02 13  959.219  6.7  60 24  9  959.293 138.4 317.4   2236 0.4555
1021416 2011 02 14  484.006  5.2  47 25  9  484.021 142.0 303.3   1694 0.2607
1021425 2011 02 14  778.694  7.0  42 29  6  778.739 143.0 310.1   4107 0.5095
1021427 2011 02 14  819.742  5.6  39 26  7  819.786 138.2 319.1   1632 0.3216
1021522 2011 02 15  670.689 10.2  61 30  6  670.733 152.7 307.2   3156 0.5456
1022317 2011 02 23  519.839  7.6  53 26  7  519.898 154.1 325.2   6091 0.5228
1022416 2011 02 24  499.775 11.2  67 29  6  499.923 166.0 329.2   3035 0.5617
1022416 2011 02 24  499.903  9.6  67 28  7  499.962 165.9 327.9   3008 0.5496
1051624 2011 05 16  722.823  4.5  45 23 10  722.853 177.7 349.2  11183 0.6192
1051626 2011 05 16  786.012  4.9  44 20  9  786.071 180.4 347.2  12512 0.5183
1111732 2011 11 17  977.769  3.2  48 27 15  977.799 216.0 367.1   7026 0.6729
2020829 2012 02 08  881.215  7.6  61 30  8  881.215 171.7 354.5   3356 0.6052
2042617 2012 04 26  529.687  6.9  76 27 11  529.717 172.0 342.7   3745 0.4694
2042622 2012 04 26  674.286  4.9  44 22  9  674.360 124.7 344.2   4855 0.3913
2070200 2012 07 02   18.262  5.1  41 22  8   18.292 189.8 364.0   3624 0.5379
2072905 2012 07 29  165.510  6.5  65 18 10  165.569 180.3 339.8   3292 0.4894
2103123 2012 10 31  719.088  6.2  50 29  8  719.103 102.5 313.2   2172 0.6087
2122916 2012 12 29  486.647  4.8  53 27 11  486.706 135.7 310.5   5069 0.5628
3011017 2013 01 10  513.826  4.8  48 30 10  513.841 101.2 294.6   5918 0.5546
3011632 2013 01 16  982.076  6.7  40 24  6  982.106 171.6 323.0   3584 0.5558
3020523 2013 02 05  700.006  4.8  43 22  9  700.095 143.2 350.6   7356 0.3951
3022023 2013 02 20  707.737  8.3  50 30  6  707.767 211.3 420.3   6483 0.7703
3022024 2013 02 20  736.386  7.0  56 24  8  736.416 186.5 366.4   8853 0.5867
3051734 2013 05 17 1031.627  6.4  45 17  7 1031.642 135.8 345.6   4406 0.4655
3060142 2013 06 01 1261.011  5.3  58 19 11 1261.041 181.4 350.6   2298 0.4355
3060201 2013 06 02   57.947  5.9  65 22 11   57.947 186.0 369.4   2568 0.3755
3060205 2013 06 02  158.305  6.1  43 17  7  158.305 182.8 381.0   4897 0.4928
3060205 2013 06 02  159.900  7.1  71 17 10  160.004 186.2 356.1   2250 0.2489
3062222 2013 06 22  674.701  4.6  51 19 11  674.716 166.5 351.4   5972 0.4676
3062222 2013 06 22  679.041  5.4  65 21 12  679.041 164.9 360.6   4270 0.3456
3062223 2013 06 22  690.930  2.5  38 24 15  690.944 146.6 362.4   6758 0.5667
3112134 2013 11 21 1024.719  6.4  70 26 11 1024.779 178.1 339.6   1199 0.5296
3121123 2013 12 11  691.737  5.1  41 29  8  691.737 207.5 387.4   6821 0.5209
4051928 2014 05 19  855.419  4.4  44 26 10  855.479 148.8 355.5   4151 0.6271
4052214 2014 05 22  424.089  2.9  44 22 15  424.089 139.1 343.3   5932 0.2548
4060714 2014 06 07  425.906  5.5  55 16 10  425.950 163.9 350.8   3305 0.4089
4060721 2014 06 07  642.945  4.4  40 17  9  642.990 167.3 353.7   3257 0.3724
4091613 2014 09 16  404.606  3.4  37 20 11  404.620 168.3 335.7   5189 0.5527
5050622 2015 05 06  674.014  8.7 104 18 12  674.058 148.4 354.3   6629 0.4482

Atlas of wavelet-scalograms

All scalogram are presented as dilation no. - sample no. graphs. The dilation no. may be converted to the time scale. The absolute time of each chirp may be obtained from the above table.

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