Wavelet analysis of lunar semidiurnal tidal influence on selected inland rivers across the

globe

Andrei-Emil Briciu1

1Ştefan cel Mare University, Suceava, 720229 Suceava, Romania

andreibriciu@atlas.usv.ro

Supplementary Figure 1 | CWT scalograms: a-h - of the time series no. 6-13 from Table 1 (the

horizontal axes represent the number of consecutive measurements, 96 per day); i-p – of

selected 3000 consecutive measurements (96 per day) from the time series no. 6-13 from Table

1; the thick black contours represent the 0.95 confidence level against AR1 red noise; the

colours with lighter shade of the power spectrum represent temporal areas affected by edge

effects.

Supplementary Figure 2 | Periodograms of the time series no. 6-13 from Table 1, extracted from

Supplementary Fig. 1.i-p scalograms (the frequency represents cycles per number of

measurements).

Supplementary Figure 3 | Selected short time series extracted from the time series no. 6-13 from Table 1 (a-h); periodograms of the GWS values extracted from PWC scalograms of the a-h time series (i-p) (the frequency represents cycles per number of measurements).

Supplementary Figure 4 | Scalograms of the City of Conroe piezometer during April – August 2013 for raw data (a) and, respectively, simple derivative data (b).

Number of measurements (24 per day)

Supplementary Figure 5 | WTC analysis of Leona River near Uvalde (gauge height) and Uvalde piezometer (deep to water level) during 2013 (raw data).

Supplementary Figure 6 | Scalograms of The Ranch piezometer during 2012 for raw data (a)

and, respectively, simple derivative data (b).

Number of measurements (96 per day)

Supplementary Figure 7 | WTC analysis of Bogan River at Dandaloo (gauge height) and Trangie piezometer (deep to water level) during 2013 (raw data).

Supplementary Figure 8 | CWT scalograms of: a - Blue River (October 2003 – December 2013);

b – Clear Fork Trinity River (January 1991 – December 2013); c – Middle Wichita River (June

1994 – September 2011); d – Panther Brook at Gosling (January 1999 – December 2013); e –

White River (October 1993 – December 2013).

Supplementary Figure 9 | Comparison between the semidiurnal signal detection in scalograms

using raw Medina River gauge height (a) and discharge (b) data (96 measurements per day;

2007-2013); gauge height (c) and discharge (d) data after applying detrending, simple

differencing, double smoothing at ¼ of a day and median filtering at ¼ of a day.