Supporting Information Groundwater monitoring at a MOSE building site in the Lagoon of Venice Authors: Alessandro Casasso, Antonio Di Molfetta and Rajandrea Sethi * DIATI - Dipartimento di Ingegneria dell’Ambiente, del Territorio e delle Infrastrutture, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy alessandro.casasso@polito.it , antonio.dimolfetta@polito.it , rajandrea.sethi@polito.it * * corresponding author Cross-correlation plots Cross-correlation plots have been calculated with the crosscorr function of MATLAB. Hourly data have been processed: - hydraulic heads measured in the shallow (PS01÷PS11, see Fig. 1÷Fig. 4) and in the deep (PP01÷PP14, see Fig. 5÷Fig. 8) piezometers; - sea levels measured by the gauge station "Diga Sud Lido" of ICPSM; - rainfall height measured by the gauge station "Cavallino Treporti" of ARPA Veneto. 1 PS01 PS02 PS03 PS04 PS05 PS06 PS07 PS08 PS09 PS10 PS11 Cross-correlation 0.75 0.5 0.25 0 -0.25 -0.5 -72 -48 -24 0 tlag [h] 24 48 72 Fig. 1 - Cross-correlation plot of hydraulic heads in the phreatic aquifer (piezometers PS01÷PS11) against hourly rainfall height during a wet month (March 2009, cumulate rainfall height: 122.4 mm). 1 PS01 PS02 PS03 PS04 PS05 PS06 PS07 PS08 PS09 PS10 PS11 Cross-correlation 0.75 0.5 0.25 0 -0.25 -0.5 -72 -48 -24 0 tlag [h] 24 48 72 Fig. 2 - Cross-correlation plot of hydraulic heads in the phreatic aquifer (piezometers PS01÷PS11) against hourly rainfall height during a dry month (July 2009, cumulate rainfall height: 7.0 mm). 1 Cross-correlation 0.75 0.5 PS01 PS02 PS03 PS04 PS05 PS06 PS07 PS08 PS09 PS10 PS11 0.25 0 -0.25 -0.5 -72 -48 -24 0 tlag [h] 24 48 72 Fig. 3 - Cross-correlation plot of hydraulic heads in the phreatic aquifer (piezometers PS01÷PS11) against hourly sea levels during a wet month (March 2009, cumulate rainfall height: 122.4 mm). 1 PS01 PS02 PS03 PS04 PS05 PS06 PS07 PS08 PS09 PS10 PS11 Cross-correlation 0.75 0.5 0.25 0 -0.25 -0.5 -72 -48 -24 0 tlag [h] 24 48 72 Fig. 4 - Cross-correlation plot of hydraulic heads in the phreatic aquifer (piezometers PS01÷PS11) against hourly sea levels during a dry month (July 2009, cumulate rainfall height: 7.0 mm). 1 PP01 PP02 PP03 PP04 PP05 PP06 PP07 PP08 PP09 PP10 PP11 PP12 PP13 PP14 Cross-correlation 0.75 0.5 0.25 0 -0.25 -0.5 -72 -48 -24 0 tlag [h] 24 48 72 Fig. 5 - Cross-correlation plot of hydraulic heads in the confined aquifer (piezometers PP01÷PP14) against hourly rainfall height during a wet month (March 2009, cumulate rainfall height: 122.4 mm). 1 PP01 PP02 PP03 PP04 PP05 PP06 PP07 PP08 PP09 PP10 PP11 PP12 PP13 PP14 Cross-correlation 0.75 0.5 0.25 0 -0.25 -0.5 -72 -48 -24 0 tlag [h] 24 48 72 Fig. 6 - Cross-correlation plot of hydraulic heads in the confined aquifer (piezometers PP01÷PP14) against hourly rainfall height during a dry month (July 2009, cumulate rainfall height: 7.0 mm). 1 PP01 PP02 PP03 PP04 PP05 PP06 PP07 PP08 PP09 PP10 PP11 PP12 PP13 PP14 Cross-correlation 0.75 0.5 0.25 0 -0.25 -0.5 -72 -48 -24 0 tlag [h] 24 48 72 Fig. 7 - Cross-correlation plot of hydraulic heads in the confined aquifer (piezometers PP01÷PP14) against hourly sea levels during a wet month (March 2009, cumulate rainfall height: 122.4 mm). 1 PP01 PP02 PP03 PP04 PP05 PP06 PP07 PP08 PP09 PP10 PP11 PP12 PP13 PP14 Cross-correlation 0.75 0.5 0.25 0 -0.25 -0.5 -72 -48 -24 0 tlag [h] 24 48 72 Fig. 8 - Cross-correlation plot of hydraulic heads in the confined aquifer (piezometers PP01÷PP14) against hourly sea levels during a dry month (July 2009, cumulate rainfall height: 7.0 mm).