Post a comment on the text below

Spatial data on lakes and reservoirs are incomplete. However, as reference volumes for reservoirs, lakes and groundwater aquifers are not available, the water balance can be quantified as only a relative change, and not the actual volume of water. This masks the actual volume of water stored in, and abstracted from, reservoirs. Thus, the impact of the residence time, between water storage and use, in reservoirs is unknown.

Previous comments

  • rispllin (Linus Rispling) 30 Aug 2022 10:37:56

    Altough we note that the overall objective with this indicator is to provide a European overview, and we are also fine with the share presented for Sweden at national level (Figure 2), we are surprised to see the very high share (above 40) for the river basin around Lake Mälaren (west of Stockholm) in Figure 1.  There's no water scarcity in this area and Lake Mälaren in itself is in fact a fresh water reservoir for the Stockholm region and surrounding areas. Perhaps this issue is due to that, as you write, "Spatial data on lakes and reservoirs are incomplete" and not taken into account in this context? The generally accepted view in Sweden is rather that water scarcity exists in South-Eastern Sweden, as well as on the Baltic Sea islands of Gotland and Öland.

    • zalllnih (Nihat Zal) 15 Sep 2022 12:12:19

      Thank you for your comment, we will further analyze the reason behind. It might be either related to the delineation of the basin in Ecrins or any error with the computation. Meanwhile, in order to make proper adjustments in the text, could you share with us your assessment in order to further improve the assessment and our data inputs?

      Altough we note that the overall objective with this indicator is to provide a European overview, and we are also fine with the share presented for Sweden at national level (Figure 2), we are surprised to see the very high share (above 40) for the river basin around Lake Mälaren (west of Stockholm) in Figure 1.  There's no water scarcity in this area and Lake Mälaren in itself is in fact a fresh water reservoir for the Stockholm region and surrounding areas. Perhaps this issue is due to that, as you write, "Spatial data on lakes and reservoirs are incomplete" and not taken into account in this context? The generally accepted view in Sweden is rather that water scarcity exists in South-Eastern Sweden, as well as on the Baltic Sea islands of Gotland and Öland.

       

You cannot post comments to this consultation because you are not authenticated. Please log in.