Short-term variability of total column ozone from the Dobson spectrophotometer measurements at Belsk, Poland, in the period 23 March 1963–31 December 2019

J. W. Krzyścin; B. Rajewska-Więch; J. Borkowski

doi:10.1080/16000889.2021.1912958

Short-term variability of total column ozone from the Dobson spectrophotometer measurements at Belsk, Poland, in the period 23 March 1963–31 December 2019

Tellus B: Chemical and Physical Meteorology

Volume 73 (2021): Issue 1

By: J. W. Krzyścin, B. Rajewska-Więch and J. Borkowski

Open Access

|Jan 2021

Figures & Tables

Yearly number of the intraday Dobson spectrophotometer measurements in the period 1963–2019: the entire set (DS&ZB&ZC) - black curve, the DS subset – red curve, and the ZC subset – blue curve.

The yearly frequency of the DS (red curve) and ZC (blue curve) observations in the period 1963–2019.

The yearly means and their smoothed profile (by the lowess filter) of total column ozone taken from various subsets of the Dobson spectrophotometer measurements at Belsk in the period 1963–2019: the ZC subset (the yearly data and the smooth curve in blue), the entire set (black), the DS&ZB subset (red), and the entire set from WOUDC daily means (magenta).

The monthly means of total column ozone from the DS&ZB measurements versus the corresponding means from the ZC measurements: the linear regression fit – blue line, the smoothed curve by the lowess filter – red line, and the diagonal of the square (the perfect agreement line) – the dashed black line.

The yearly means (1963–2019) and their smoothed pattern derived from the daily values of the intraday metrics of the short-term total column ozone variability: coefficient of variability (blue) and the relative range (red).

Table 1.

Statistical characteristics of intraday TCO variability: Mean value (Mean), standard deviation (SD), and Span (difference between the daily maximum and minimum TCO value).

ClassMean (DU)SD (DU)Span (DU)N1963–1978ALL3425.1513.13551DS&ZB3354.5811.81661AD&DS3344.4811.41346ZC3465.4313.21366DS3344.5311.614201980–1999ALL3324.8913.15182DS&ZB3304.3011.72430AD&DS3333.8810.4852ZC3305.0712.82464DS3313.9210.59842000–2019ALL3285.4016.96440DS&ZB3284.6514.93782AD&DS3303.6910.72537ZC3295.1914.34068DS3293.9812.12891

[i] All values are in Dobson units (DU). DS, ZB, and ZC denote direct sun, zenith blue, and zenith cloudy class of the Dobson spectrophotometer observations, respectively. AD means the observation class (with the highest accuracy) using the double wavelength pairs: A (305.5 nm, 325.0 nm) and D (317.5 nm, 339.9 nm). N is total number of the daily values used in the calculations for each class.

Table 2.

Statistical characteristics of the coefficient of variation, according formula (1), of the intraday TCO values.

ClassMean ± SD %Median [Range] %1963-1979ALL1.52 ± 0.841.38 [0.41, 3.04]DS&ZB1.38 ± 0.781.25 [0.34, 2.80]AD&DS1.34 ± 0.771.22 [0.32, 2.74]ZC1.59 ± 0.911.44 [0.43, 3.27]DS1.36 ± 0.771.23 [0.32, 2.74]1980-1999ALL1.48 ± 0.821.35 [0.41, 3.00]DS&ZB1.31 ± 0.741.20 [0.34, 2.64]AD&DS1.16 ± 0.731.00 [0.31, 2.49]ZC1.54 ± 0.901.39 [0.39, 3.22]DS1.18 ± 0.721.05 [0.32, 2.51]2000-2019ALL1.65 ± 0.811.51 [0.58, 3.14]DS&ZB1.42 ± 0.711.31 [0.43, 2.73]AD&DS1.11 ± 0.720.96 [0.25, 2.41]ZC1.58 ± 0.891.43 [0.42, 3.26]DS1.20 ± 0.721.05 [0.32, 2.58]

[i] Mean, SD, median, and [range] denote average value, standard deviation, median, and the 5th–95th percentile range. All values are percentages.

Table 3.

The same as Table 2 but for the relative range of the intraday variability according formula (2).

ClassMean ± SD %Median [Range] %1963–1979ALL3.85 ± 2.143.52 [0.98, 7.69]DS&ZB3.51 ± 2.023.17 [0.81, 7.40]AD&DS3.41 ± 1.983.09 [0.78, 7.18]ZC3.87 ± 2.243.53 [1.01, 7.99]DS3.46 ± 1.993.13 [0.79, 7.27]1980–1999ALL3.97 ± 2.183.63 [1.03, 8.06]DS&ZB3.57 ± 2.053.29 [0.85, 7.35]AD&DS3.11 ± 1.952.77 [0.73, 6.56]ZC3.90 ± 2.293.53 [0.93, 8.26]DS3.17 ± 1.972.82 [0.76, 6.76]2000–2019ALL5.16 ± 2.564.84 [1.54, 9.94]DS&ZB4.55 ± 2.404.26 [1.12, 8.84]AD&DS3.20 ± 2.122.78 [0.61, 7.29]ZC4.34 ± 2.513.96 [1.08, 9.05]DS3.65 ± 2.263.25 [0.79, 7.95]

Table 4.

Probability of the same distribution for the intraday metrics in the subperiod pairs by the two-sample Kolmogorov–Smirnov test.

Variable1963–1979 versus 1980–19991963–1979 versus 2000–20191980–1999 versus 2000–2019ALLCV0.05<0.01*<0.01*RR0.01*<0.01*<0.01*DS&ZBCV<0.01*<0.01*<0.01*RR0.20<0.01*<0.01*AD&DSCV<0.01*<0.01*0.06RR<0.01*<0.01*0.12ZCCV0.250.680.04*RR0.78<0.01*<0.01*DSCV<0.01*<0.01*0.39RR<0.01*0.13<0.01*

[i] The results are for the entire set of observation (ALL) and various combinations of the Dobson spectrophotometer settings (DS&ZB, AD&DS, ZC, and DS).

[ii] (…)* marks cases with the probability less than 0.05.

[iii] CV, coefficient of variability; RR, relative range.

Table 5.

Statistical characteristics of one-day change of the coefficient variability.

ClassMean ± SD PPMedian [Range] PPN1963–1979ALL0.02 ± 1.09−0.01 [−1.82, 1.81]2458DS&ZB0.03 ± 1.010.02 [−1.56, 1.75]793AD&DS0.03 ± 0.980.02 [−1.59, 1.73]629ZC0.06 ± 1.170.01 [−1.89, 1.99]443DS0.02 ± 0.980.02 [−1.59, 1.70]6681980–1999ALL0.00 ± 1.11−0.01 [−1.76, 1.87]4108DS&ZB0.02 ± 0.960.01 [−1.57, 1.50]1308AD&DS−0.01 ± 0.870.02 [−1.53, 1.30]363ZC−0.01 ± 1.26−0.03 [−2.11, 2.13]1135DS0.01 ± 0.930.02 [−1.59, 1.49]4032000–2019ALL−0.00 ± 1.060.00 [−1.71, 1.69]5857DS&ZB0.01 ± 0.920.00 [−1.45, 1.43]2547AD&DS0.02 ± 0.940.00 [−1.44, 1.55]1517ZC−0.01 ± 1.180.01 [−1.94, 2.01]2528DS0.02 ± 0.950.00 [−1.46, 1.58]1723

[i] The same notation as in Table 2. The values are in percentage points (PP). N is total number of the daily values of the metrics used in the calculations for each class.

Table 6.

The same as Table 2 but for the one-day change of the relative range that is expressed in percentage point (PP).

ClassMean ± SD PPMedian [Range] PPN1963-1979ALL0.05 ± 2.820.04 [−4.71, 4.72]2458DS&ZB0.05 ± 2.620.03 [−4.36, 4.41]793AD&DS0.04 ± 2.510.05 [−4.17, 4.35]629ZC0.16 ± 2.950.02 [−4.47, 4.83]443DS.0.04 ± 2.540.03 [−4.14, 4.26]6681980–1999ALL−0.01 ± 2.960.01 [−4.80, 4.84]4108DS&ZB0.06 ± 2.700.03 [−4.29, 4.26]1308AD&DS−0.05 ± 2.430.02 [−4.18, 3.79]363ZC−0.02 ± 3.21−0.06 [−5.46, 5.36]1135DS.0.01 ± 2.630.02 [−4.50, 4.01]4032000–2019ALL−0.01 ± 3.30−0.01 [−5.40, 5.40]5857DS&ZB0.02 ± 3.07−0.01 [−4.97, 4.88]2547AD&DS0.06 ± 2.750.00 [−4.33, 4.54]1517ZC−0.01 ± 3.350.07 [−5.48, 5.65]2528DS0.06 ± 2.960.02 [−4.83, 4.82]1723

[i] N is total number of the daily values of the metrics used in the calculations for each class.

Table 7.

The same as Table 2 but for the relative one-day change of TCO according formula (3).

VariableMean ± SD %Median [Range] %N1963–1979ΔTCO_ALL−0.4 ± 6.4−0.4 [−11.1, 9.9]2458ΔTCO_DS&ZB−0.4 ± 4.5−0.2 [−7.7, 6.3]793ΔTCO_AD&DS−0.3 ± 4.30.0 [−7.5, 6.0]629ΔTCO_ZC−0.2 ± 8.3−0.4 [−14.1,12.5]443ΔTCO_DS−0.2 ± 4.50.0 [−5.4, 6.6]668ΔTCO_SBUV0.2 ± 6.80.0 [−9.9, 10.6]6881980-1999ΔTCO_ALL−0.4 ± 6.8−0.2 [−11.9, 11.0]4108ΔTCO_DS&ZB−0.5 ± 5.0−0.4 [−10.0, 8.1]1308ΔTCO_AD&DS−0.5 ± 3.8−0.4 [−8.7, 5.1]363ΔTCO_ZC−0.4 ± 8.5−0.1 [−13.7, 12.6]1135ΔTCO_DS−0.5 ± 4.2−0.4 [−6.4, 5.8]403ΔTCO_SBUV0.2 ± 6.60.0 [−9.6, 11.0]62782000-2019ΔTCO_ALL−0.3 ± 7.5−0.1 [−13.0, 10.9]5857ΔTCO_DS&ZB−0.6 ± 5.5−0.4 [−10.0, 8.1]2547ΔTCO_AD&DS−0.6 ± 4.6−0.4 [−8.3, 6.5]1517ΔTCO_ZC0.1 ± 8.2−0.1 [−14.6, 12.0]2528ΔTCO_DS−0.5 ± 4.8−0.4 [−8.6, 7.6]1723ΔTCO_SBUV0.2 ± 7.00.0 [−10.4, 11.9]7108

[i] The values are in percentages. N is total number of the daily values of the metrics used in the calculations for each class.

Table 8.

Probability of the same distribution for the one-day change of the intraday metrics (CV, RR, and ΔTCO _X) in the subperiod pairs by the two-sample Kolmogorov–Smirnov test applied to the entire set of the Dobson measurements and various combinations of the instrument settings.

Variable1963–1979 versus 1980–19991963–1979 versus 2000–20191980–1999 versus 2000–2019ALLΔCV0.800.090.05ΔRR0.32<0.01*0.18ΔTCO_ALL<0.01*<0.01*0.78ΔTCO_SBUV0.920.920.62DS&ZBΔCV0.900.430.55ΔRR0.600.130.20ΔTCO_DS&ZB0.190.100.99AD&DSΔCV0.470.690.78ΔRR0.850.240.45ΔTCO_AD&DS0.140.220.16ZCΔCV0.330.530.51ΔRR0.130.04*0.65ΔTCO_ZC0.980.800.80DSΔCV0.850.760.99ΔRR0.910.100.34ΔTCO_DS0.270.210.29

ΔTCO _SBUV shows the probability based on the comparisons of the satellite data over Belsk (SBUV Merged Ozone Data Set).

* Marks cases with the probability less than 0.05.

ΔCV = CV(t + 1) −CV(t), one-day change of CV in PP.

ΔRR = RR(t + 1) – RR(t), one-day change of RR in PP.

ΔTCO _X, relative one-day change of TCO for subset X in %.

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DOI: https://doi.org/10.1080/16000889.2021.1912958 | Journal eISSN: 1600-0889

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Language: English

Page range: 1912958 - 1912958

Published on: Jan 1, 2021

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

Keywords:

total column ozone,

short-term variability,

trends

© 2021 J. W. Krzyścin, B. Rajewska-Więch, J. Borkowski, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 73 (2021): Issue 1

Short-term variability of total column ozone from the Dobson spectrophotometer measurements at Belsk, Poland, in the period 23 March 1963–31 December 2019

Figures & Tables

Fig. 1.

Fig. 2.

Fig. 3.

Fig. 4.

Fig. 5.

Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

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