http://earthwise-staging.bgs.ac.uk/index.php?action=history&feed=atom&title=OR%2F18%2F012_Appendix_3_%E2%80%93_Defining_groundwater 2026-04-14T18:08:33Z Revision history for this page on the wiki MediaWiki 1.42.3 http://earthwise-staging.bgs.ac.uk/index.php?title=OR/18/012_Appendix_3_%E2%80%93_Defining_groundwater&diff=44247&oldid=prev 2019-12-03T11:34:31Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:34, 3 December 2019</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l136">Line 136:</td> <td colspan="2" class="diff-lineno">Line 136:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It is primarily based on pre-existing hydrostratigraphic mapping, with aquifers and groundwater bodies ranging from alluvial sediments with an average thickness of about 10 m and a transmissivity of 60 to 1100 m2/d, to suites of sandy marls down to depths of 2500 m with spring discharges of about 1 l/s. However, there is no indication of how the base of any of these units is defined based on hydrostratigraphic criteria.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It is primarily based on pre-existing hydrostratigraphic mapping, with aquifers and groundwater bodies ranging from alluvial sediments with an average thickness of about 10 m and a transmissivity of 60 to 1100 m2/d, to suites of sandy marls down to depths of 2500 m with spring discharges of about 1 l/s. However, there is no indication of how the base of any of these units is defined based on hydrostratigraphic criteria.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The lack of any explicit criteria to define the base of groundwater bodies, or even the conceptualisation of deep groundwater systems, appears to be a common failing throughout Member States. Although some Member States do have explicit criteria for the designation of the lower boundary of groundwater bodies, such as Croatia (Brkic, 2008&lt;ref name="Brkic 2008"&gt;<del style="font-weight: bold; text-decoration: none;">BRKIC, Z. 2008. Results of initial characterisation of the groundwater bodies in Croatian karst [online]. Available from https://www.unece.org/fileadmin/DAM/env/water/meetings/karst_croatia_2008/Brkic_et_al_Initial%20characterization%20of%20groundwater%20bodies%20in%20Croatian%20karst.pdf [last cited 15 September 2017].</del>&lt;/ref&gt;) where the base of Groundwater Bodies is defined by groundwater temperatures of greater than 20°C and mineralisation &gt;1000 mg/l. Although it is also noted that:</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The lack of any explicit criteria to define the base of groundwater bodies, or even the conceptualisation of deep groundwater systems, appears to be a common failing throughout Member States. Although some Member States do have explicit criteria for the designation of the lower boundary of groundwater bodies, such as Croatia (Brkic, 2008&lt;ref name="Brkic 2008"&gt;&lt;/ref&gt;) where the base of Groundwater Bodies is defined by groundwater temperatures of greater than 20°C and mineralisation &gt;1000 mg/l. Although it is also noted that:</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>::“Aquifers of thermal [sic] and mineral water is not included in groundwater bodies because there is not enough data”.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>::“Aquifers of thermal [sic] and mineral water is not included in groundwater bodies because there is not enough data”.</div></td></tr> </table>

Dbk http://earthwise-staging.bgs.ac.uk/index.php?title=OR/18/012_Appendix_3_%E2%80%93_Defining_groundwater&diff=38427&oldid=prev 2018-10-19T08:55:35Z

<p>1 revision imported</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <tr class="diff-title" lang="en"> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:55, 19 October 2018</td> </tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr></table>

Dbk http://earthwise-staging.bgs.ac.uk/index.php?title=OR/18/012_Appendix_3_%E2%80%93_Defining_groundwater&diff=38426&oldid=prev 2018-08-30T15:09:31Z

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