FIGURE 4. Daily values of mean discharge (black line),
streamwater temperature (red line) and electrical conductivity (blue
line) during the period April 1st to July
1st at the Izas gauging station.
Water temperature also allowed to assess the relevance of snow melting
in streamflow generation. Water was noticeably cold (normally
< 3º C, interrupted by some rainfall events and very warm
days), and ruled by the snowmelt dynamics during the period encompassing
mid-May to mid-June. Only when the snow cover area was less than
approximately 10%, did water temperature increase quickly until
reaching 15-20ºC by the end of June. This was not the case in June 2018,
when the deep and longest-lasting snowpack limited the temperature
increase of streamflow water even in late June.