Département Ressources aquatiques et eau potable

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   0 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=33532, pid=124)
      originalId => protected33532 (integer)
      authors => protected'van Tiel, M.; Aubry-Wake, C.; Somers, L.; Andermann, C.;
          Avanzi, F.; Baraer, M.; Chiogna, G.; Daigre, C.; Das,&n
         bsp;S.; Drenkhan, F.; Farinotti, D.; Fyffe, C. L.; de Gr
         aaf, I.; Hanus, S.; Immerzeel, W.; Koch, F.; McKenzie,&n
         bsp;J. M.; Müller, T.; Popp, A. L.; Saidaliyeva, Z
         .; Schaefli, B.; Schilling, O. S.; Teagai, K.; Thornton,
          J. M.; Yapiyev, V.' (490 chars)
      title => protected'Cryosphere–groundwater connectivity is a missing link in the mountain wate
         r cycle' (83 chars)
      journal => protected'Nature Water' (12 chars)
      year => protected2024 (integer)
      volume => protected2 (integer)
      issue => protected'7' (1 chars)
      startpage => protected'624' (3 chars)
      otherpage => protected'637' (3 chars)
      categories => protected'' (0 chars)
      description => protected'The mountain cryosphere and groundwater play pivotal roles in shaping the hy
         drological cycle, yet their connectivity remains incompletely understood. Cu
         rrent knowledge on meltwater recharge and consequent groundwater discharge p
         rocesses is better developed for snow–groundwater connectivity than for gl
         acier–groundwater connectivity. Estimates of meltwater recharge vary consi
         derably, which is probably a function of not only inherent catchment charact
         eristics but also of the different spatio-temporal scales involved and the u
         ncertainties in the methods used. This hinders a comprehensive understanding
          of the mountain water cycle. As glaciers retreat, permafrost thaws and snow
         pack diminishes, the relative importance of mountain groundwater is expected
          to increase. However, shifting and declining recharge from the cryosphere m
         ay decrease absolute groundwater amounts and fluxes with as-yet unknown effe
         cts on catchment-scale hydrological processes. We therefore stress the need 
         to better quantify mountain cryosphere–groundwater connectivity to predict
          climate change impacts on mountain water supply and to support sustainable 
         water resource management of downstream socio-ecological systems.' (1205 chars)
      serialnumber => protected'' (0 chars)
      doi => protected'10.1038/s44221-024-00277-8' (26 chars)
      uid => protected33532 (integer)
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      pid => protected124 (integer)
   1 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=34784, pid=124)
      originalId => protected34784 (integer)
      authors => protected'Giroud, S.; Deng, L.; Lever, M. A.; Schilling, O.&n
         bsp;S.; Kipfer, R.' (99 chars)
      title => protected'Resilience of deep aquifer microbial communities to seasonal hydrological fl
         uctuations' (86 chars)
      journal => protected'Proceedings of the National Academy of Sciences of the United States of Amer
         ica PNAS' (84 chars)
      year => protected2025 (integer)
      volume => protected122 (integer)
      issue => protected'23' (2 chars)
      startpage => protected'e2422608122 (9 pp.)' (19 chars)
      otherpage => protected'' (0 chars)
      categories => protected'thermal aquifer; deep microbial communities; noble gases; geomicrobiological' (76 chars)
      description => protected'The influence of seasonal variations in temperature and precipitation on sub
         surface biogeochemical processes remains poorly understood. In the Lavey-les
         -Bains thermal system in the Swiss Alps, annual variations in electrical con
         ductivity are observed to depths of 500 m, suggesting a potential link to su
         rface environmental changes. Here we show, through year-round analyses of st
         able water isotopes, noble gases, and conductivity, that seasonally varying 
         contributions of shallow groundwater from the Rhône alluvial aquifer mix wi
         th deep groundwater. Despite vertically similar fluid geochemical compositio
         ns suggesting high hydrological connectivity, microbial communities exhibit 
         significant depth-dependent variation with minimal seasonal change. This dec
         oupling of dynamic water source partitioning and stable microbial community 
         structure has not been previously observed and fills a critical gap in our u
         nderstanding of geothermal systems and microbial life in the deep subsurface
         . At 200 m, the communities are dominated by sulfur-disproportionating Bacte
         ria (<em>Dissulfurispira</em>) and Micrarchaeota, while at 500 m the major g
         roups include sulfate- and iron-reducers and/or hydrogen-oxidizers (Thermale
         s, Thermodesulfobacteriota, and Bathyarchaeota). Our study highlights the re
         silience of terrestrial subsurface microbial communities to temporal variati
         ons in water sources and fluid composition. We propose that intrinsic enviro
         nmental properties - such as temperature - are more critical drivers of micr
         obial community structure in hydrologically connected deep aquifers than sea
         sonal hydrological changes.' (1623 chars)
      serialnumber => protected'0027-8424' (9 chars)
      doi => protected'10.1073/pnas.2422608122' (23 chars)
      uid => protected34784 (integer)
      _localizedUid => protected34784 (integer)modified
      _languageUid => protectedNULL
      _versionedUid => protected34784 (integer)modified
      pid => protected124 (integer)