Oct-Dec outlook: Below normal #river flow in groundwater-dominated catchments in S England & NE Scotland likely to persist. Potential for #groundwater recovery if significant rain over next 3 months. Elsewhere normal to above flows & groundwater likely hydoutuk.net/latest-outlo...

Great time last week, volunteering with @RiverThameCT on Sheep Brook. Fed by #groundwater from the Chalk #aquifer, it's a tributary of the Lewknor Brook. Before & after removing small rock weir to improve fish passage & enable natural flows to reshape channel & gravel bed

Hydrological outlook for Sept-Nov is for normal to below normal #river flows across S&E but above normal in NW. Normal to below normal #groundwater levels most likely with some areas above normal & others notably low but gradually trending to normal hydoutuk.net/latest-outlo...

The Sherwood Sandstone #aquifer: Not just a big red sponge holding #groundwater that supports #water supply, #agriculture & #rivers. @BritGeoSurvey: "....the geological character of our subsurface systems must remain central to securing our water future" 👍 www.watermagazine.co.uk/2025/08/27/t...

Why the sad face☹️ Yesterday, on the dry bed of #River Thames at Ashton Keynes, 7 miles from its source. Repeat of August 2022 when I looked hopefully upstream at same location. The result of exceptionally low #groundwater level in #Cotswolds #aquifer after prolonged dry weather

Out on the #water, paddling down the River Kennet earlier this week. Despite the prolonged dry weather, it's looking good because of natural #groundwater flows from aquifers across the catchment and #river management.

Fantastic Upper Thames Catchment Partnership meeting last week including walk along #River Coln hosted by @ernestcooktrust. With very dry weather the low flow is #groundwater from #Cotswolds #aquifers, enhanced by nature-based interventions creating pool-glide-riffle structure

Outlook for July to Sept is for normal to below normal #groundwater levels across the country with #river flows remaining below normal to low in central & eastern areas but within the normal range in western regions. Check report for local variability hydoutuk.net/latest-outlo...

"How is #ClimateChange affecting Gloucestershire?" Diverse perspectives in this report from @EdwardRowe at @BBCGlos, including me on the exceptionally dry Spring affecting the #River Churn in #Cirencester & hinting at #drought. Thanks for the opportunity www.bbc.co.uk/news/article...

Outlook is for normal to below normal #groundwater levels in June-Aug but notably low possible in some #aquifers. Despite above normal to exceptionally low #river flows in June, likely summer flows range from normal in NW to below normal & low elsewhere hydoutuk.net/latest-outlo...

May-July outlook: Normal #groundwater levels in southern Chalk but Below Normal in N England #aquifers & #Cotswolds. Below Normal #river flows most likely but exceptionally low in some catchments & Normal in W Scotland/Northern Ireland #Drought risk🤔 hydoutuk.net/latest-outlook…

Paddling along the #River #Thames with the #water flow dominated by #groundwater fed from the diverse #aquifers of Thames catchment. But what's that on the bank🤔 An unexpected monitoring #borehole

With India suspending the Indus Waters Treaty, can they really stop #water flowing into Pakistan? Transboundary water management under stress but could water be "weaponised" further if tension rises between the two countries? www.bbc.com/news/article...

Having worked on the #groundwater components of the Omo-Gibe Master Plan development about 30 years ago, it's amazing to hear how AI is now being used to help farmers locate #groundwater sources in #Ethiopia www.thereporterethiopia.com/44660/

Need to know where Managed #Aquifer Recharge can help replenish #groundwater storage? Worth reading this approach to mapping fast #hydrogeological pathways for replenishing alluvial aquifers using agricultural land in #California Central Valley sustainability.stanford.edu/news/scienti...

Interesting read on policy implementation to incentivise Managed #Aquifer Recharge as one action for sustainable #groundwater management. Similar read on the #hydrogeology underpinning the policies, role of groundwater level monitoring & modelling would be interesting www.ppic.org/blog/making-...

One of many sunken lanes cut through Lower Greensand rocks of W Sussex. Ancient tracks for people & animals. All can act as pathways for #rainfall #runoff to transport large quantities of #sediment from surrounding land to the #River Rother #geology #water #contamination #transhumance

Tariffs of a different kind: Malta's Environmental & Resource Authority remains undecided about setting tariffs for #groundwater extraction & the need for a licence to extract. All part of grappling with illegal extraction timesofmalta.com/article/auth...

Well below average #rainfall in March across most of Scotland, #groundwater levels lower than April 2022, which led to summer #drought #water restrictions, and low to extremely low #river flows, highlight #climate unpredictability & need for #adaptation news.stv.tv/scotland/sco...

UK Hydrological Outlook for Feb-April: Normal to Above Normal #groundwater levels with Above Normal levels persisting in southern Chalk #aquifer. Similarly, Normal to Above #river flows in NW, Normal elsewhere except for Above Normal flows in southern England hydoutuk.net/latest-outlook…

Attractive & inconvenient perspectives of fluvial flooding on the River Loddon, with an unseen contribution from #groundwater #water #river #flood

New fingerpost at the Source of the River Thames, and the start or finish of the Thames Path National Trail, installed yesterday by our wonderful volunteers under watchful eye of @johnmtippetts.bsky.social 🙏 #fingerpostfriday @ramblers.org.uk @andysin33.bsky.social @brendythefrenzy.bsky.social

For those of you who have never seen the official source of the #Thames in flood, here's a video I made this week of the first mile of our beautiful river. You can clearly see water bubbling from the Cotswold aquifer. Thanks Storm Bert! @thamespathnt.bsky.social youtu.be/KfPNLxD9GWI

Relict #water meadows on River #Churn from the air & on the ground, with former sluice control channels in evidence. How might they contribute to environmental improvement & #river #flood management🤔Need to account for the role of #groundwater in baseflow & flood impact (1/2)

Big data in #Brazil suggests widespread potential for #river water loss to #aquifers particularly where there's extensive #groundwater pumping. Highlights need for conjunctive groundwater & surface #water management to balance water use & ecosystem needs www.nature.com/articles/s41...

Topical @POST_UK view: Risk-based systems approach understanding interconnections & trade-offs could improve UK #water security, e.g. water supply, pollution, #flood mitigation, environmental health & secure nature recovery. Catchment-scale approach🤔 A key question post.parliament.uk/integrated-m...

Want to know more about geological factors for mine water heat systems ? Well check out this open access paper led by BGS www.lyellcollection.org/doi/full/10....

"Often out of sight, but never out of mind". There's #groundwater beneath our feet & around us in so many places. Rebecca's Well at Crazies Hill, Berkshire, fed by more permeable sand beds in the Lambeth Group, perched on top of the Chalk #aquifer

"Often out of sight, but never out of mind". There's #groundwater beneath our feet & around us in so many places. The Holy Well at St Clether, Cornwall, a #spring fed from the Carboniferous Tintagel Volcanic Formation

A cool day, in many ways, with Reading Geological Society taking in #springs fed by #groundwater from the Chalk #aquifer at Ewelme (right) in the @chilternsnl & the Upper Greensand aquifer at Brightwell (left) on the edge of @northwessexdowns, sharing #hydrogeology insights

Have you seen the hydrology climate stripes? If not you might have missed the yearly WMO report on the state of water resources. Take a look: wmo.int/publication-... For those who already know the report, there now also is a higher resolution version available!

I've started working on this starter pack (Hydrology+Hydrogeology+Water in general) to help friends/colleagues who are migrating from the other place. Please note that this is work in progress and that more people will be added. Feel free to suggest BlueSky handles in comments. go.bsky.app/2h9ouZY

Yes, it's the flow out of an attractive looking lake along a channel of the #River Churn in #Cirencester, but this is a #groundwater dominated environment, fed by the #Cotswolds limestone #aquifers. Who would have thought it🤔