CEH's River Lambourn Observatory
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A presentation by Dr Gareth Old of the Centre for Ecology & Hydrology (CEH) on monitoring work at the CEH River Lambourn Observatory and research into chalk river systems.
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This document summarizes restoration efforts at Middle Harbor on Lake Erie to restore coastal wetlands and hydrologic connectivity. A water control structure was constructed to reintroduce Lake Erie water levels and exchange. Monitoring shows improvements in water quality and species abundance compared to a control site. The long term goal is to sustain high quality coastal marsh through natural Lake Erie hydrology. Adaptive management will be used to refine water level management.
Chapter 11 13
This document discusses water as a finite resource and provides details about groundwater systems. It notes that water is a regionally renewable resource, but not always locally. Groundwater flows underground and is recharged very slowly over long timescales. Pumping groundwater lowers the water table and can cause issues like subsidence. The document also discusses soil resources and issues like erosion, as well as mineral resources and the global distribution and demand issues for certain minerals.
Agricultural sensitivity to climate change and water resources interactions i...
Agricultural sensitivity to climate change and water resources interactions i...National Institute of Food and Agriculture
This document summarizes a project to assess agricultural sensitivity to climate change and water resources interactions in California's San Joaquin Valley. The project will use modeling tools and data to analyze potential adaptation strategies, including augmenting water supplies through groundwater recharge and reservoir management, and adjusting cropping strategies. The economic impacts of different adaptation scenarios will also be evaluated. The goal is to identify sustainable solutions that mitigate climate change pressures on agriculture in the region.Sanders, Richard: Carbon Cycling along the GB Land Ocean Aquatic Continuum (L...
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This document discusses carbon cycling along the land-ocean aquatic continuum (LOAC) in the UK. It finds that the LOAC is highly variable across catchments and poorly studied. In the UK, the fraction of carbon exported from land to rivers depends on land use and hydrology, with forests playing a key role. In estuaries, carbon behavior is linked to catchment characteristics, with peatland-draining systems showing conservative transport. Throughout the LOAC, photolysis and respiration are important loss mechanisms, while flocculation plays a minor role. The next steps involve linking these findings to the inorganic carbon cycle.Hydrology
Hydroelectric power is a renewable source of energy that generates electricity from the kinetic energy of flowing water. Dams are constructed to trap water in reservoirs, allowing it to flow through tunnels and turn turbines that drive generators. The amount of power generated depends on the head, or vertical distance water falls, and water flow. While hydroelectric power has advantages of being renewable and producing no emissions, dams can negatively impact the environment by flooding habitat and disrupting river ecology.
Conservation in the Era of Climate Change: South Kingstown Case Study
This document discusses conservation strategies for South Kingstown, Rhode Island in the face of climate change. It identifies key habitats in the area, including cold water streams, agricultural lands, and upland forests, and assesses their sensitivity to climate impacts like increasing temperatures and changing precipitation patterns. Non-climate stressors like invasive species and habitat loss are also discussed. The document provides tools for land trusts to evaluate climate vulnerability and identify management actions to enhance resilience, including a pilot project example, GIS maps, and lists of actions. Contact information is provided for further climate adaptation resources.
Group presentation on climate change impact
The document discusses how climate change is impacting various sectors in Nepal such as agriculture, food security, water resources, energy, biodiversity, gender and livelihoods. It notes that Nepal is one of the most vulnerable countries to climate change due to increased risks of issues like decreased crop yields, changes in water availability, flooding and drought. The sectors expected to be most severely impacted include agriculture, food security, water resources, biodiversity, and gender/livelihoods.
water_resource_management_chapter_4es.ppt
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Environment Institute Seminar Series 7 Justin Brookes
Associate Professor Justin Brookes illustrates the challenges facing water resources in South Australia.
L11 Uk Water Supply And Demand
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The Abiotic TemplateClimate Floodplain vegetation--Coordinat.docx
The Abiotic Template:
Climate: Floodplain vegetation--Coordinates: 47.7601° N, 122.2054° W temperate oceanic climate, with cool summers and cool (but not cold) winters. Winter sees much more rainfall than summer and winters in Bothell (much like the rest of the PNW) are very cloudy and overcast. Summers are drier and cool to warm. The proper temperature and comfortable environment attract animals to build their families here.
•Geology & Landforms: The North Creek Wetland is one of the largest and most complex floodplain restorations ever undertaken in the Pacific Northwest. It is a bold attempt to restore highly altered pastureland to a sustainable, functioning floodplain ecosystem within an urbanizing watershed. The project is unique in the degree to which fundamental theories of ecosystem and restoration ecology were utilized in the design and are being employed in the management of the site.
on a 127-acre site containing the floodplain of a moderate sized stream (North Creek) and a hillside created by glacial deposition over 15,000 years ago. North Creek is a salmon-bearing stream, containing viable populations of a number of salmon species despite being the central stream in one of the most rapidly urbanizing watersheds of the central Puget Sound region. The portion of North Creek that runs through the campus is just upstream from its junction with the Sammamish River near the north end of Lake Washington.Complex marsh; Mixed marsh-forest wetland environment. Very fine sands. There are floodplain vegetations to consist the forest. The main vegetations are western redcedar, black cottonwood, Douglas-fir, big leaf maple, and red alder.
•
Soils: The soils are complex, mixed with organic deposits (mucks, peats), lake sediments, marsh sediments, volcanic ash, and floodplain alluvium. These conditions were changed by the water level of Lake Washington. When the water level was at the highest position, there was an extremely large shallow, including the contemporary Lake Sammamish and Lake Washington.
Diatomaceous layers in the soil profile indicate standing water for long periods of time. However, it appears that most of the time, the site supported a complex marsh to mixed marsh-forested wetland environment. Historical floodplain sediments are mostly well-sorted medium to very fine sands. Lake and marsh environments accumulated organic soils, mostly mucks, and a variety of fine grained, mostly silt, mineral sediments. Peat deposits up to ten or more feet deep exist on northern portions of the restoration site.
•
Hydrology: Surface water flowed into "Squawk Slough" Diatomaceous layers in the soil profile indicate standing water for long periods of time. The characteristics of hydrology were influenced by interaction of runoff from the North Creek watershed and the natural fluctuations in water levels of Lake Washington that affected the slough.
Sustainable stormwater management is a cornerstone of our sustainable campus, as our camp ...
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The document provides information on global water supply and issues related to water use, pollution, and treatment. It discusses the following key points:
1) A growing global water shortage is linked to food supply as the human population grows and water is needed to grow more food. Only 1% of the world's water is available for human use.
2) Water pollution from sources like agricultural and urban runoff degrades water quality and exposes billions of people to waterborne diseases. Pollution increases biochemical oxygen demand (BOD) in water.
3) Eutrophication from excess nutrients like nitrogen and phosphorus entering water bodies from fertilizers and sewage kills aquatic plants and reduces dissolved oxygen, harming ecosystems
Hydrosphere
1. Dissolved oxygen - Low DO can cause fish stress and death.
2. pH - Extreme pH outside the tolerance range of fish can kill them.
3. Ammonia - High ammonia is toxic to fish.
4. Temperature - Sudden temperature changes can shock and kill fish.
Testing these basic water quality parameters will help the students determine if pollution or low oxygen caused the fish kill.
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To download click the given link
https://youtu.be/DqphXPcDm_M
Chapter 2 || Soil, Land, Water, Natural Vegetation and Wildlife Resources || Class 8 || NCERT-CBSE- Part 2 || Power point presentation
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The document provides information about the Bass River watershed on Cape Cod, Massachusetts. It summarizes that the watershed covers 10,331 acres across 11,800 parcels in Dennis, Yarmouth, and other towns. Developed land in those towns increased 58.7% and 56.3% from 1971 to 1999. The watershed includes features like Long Pond and is impacted by nitrogen pollution from septic systems, fertilizers, and other sources. Studies show some surface waters and subwatersheds exceed nitrogen limits, threatening ecosystem health. Solutions discussed include the Cape Cod Regional Wastewater Management Plan and a mix of decentralized and centralized wastewater infrastructure projects over 20-30 years.
Estuaries
Estuaries are bodies of water where freshwater rivers meet saltwater oceans, forming brackish water. They support rich ecosystems but are threatened by pollution and climate change. The Chesapeake Bay estuary is suffering from agricultural and industrial runoff, which is lowering oxygen levels and harming fish and crab populations. Rising sea levels and warmer water temperatures due to global warming are eroding wetlands and stressing native species in estuaries like Delaware Bay. Protecting these vital ecosystems is important for wildlife and coastal communities.
Regional Water Issues and Solutions 110729
The document discusses regional water issues and potential solutions in Colorado. It covers the region's geology, climate, history of water usage and legal framework. It also examines current challenges like declining groundwater levels and the need to balance various stakeholders. The document proposes expanding surface water supplies, increasing water conservation and reuse, and developing regional solutions through cooperation between local authorities.
Water Resource
The document discusses various topics related to groundwater and surface water systems. It explains that groundwater and surface water are connected, with pumping wells able to cause interference between cones of depression. It notes that extraction should not exceed recharge to avoid water mining and subsidence, and that recharge zones need protection. The hyporheic zone of water exchange between surface and groundwater is also described. Rainwater harvesting and the water cycle are briefly covered.
Ch 6 Social Issues and Environment
Environmental Studies ppt for EST,
Ch. No. 6 Social Issues and Environment,
By Prof. Kokare A.Y.
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Lecture - Chapter 14 - Water as a Limited Resource.ppt
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Adaptive methods to restore Lake Erie hydrology_Kroll
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Presentation by CEH scientists Steve Cole, Bob Moore and Seonaid Anderson at the RMetS National Meeting on December 19th 2018.Non-monetary values and ecosystem services in the Celtic Seas
This document discusses a project that aims to advance the understanding of marine ecosystem values, particularly in response to management interventions in the Celtic Seas. It outlines that 40 stakeholders from the west coast of Scotland and southwest England were interviewed to understand their relationship with the marine environment and the values they associate with managing it, such as interdependence with nature and protecting habitats. The interviews found that stakeholders experience curiosity, excitement, and variety in the marine environment and gain knowledge and skills. The project will use scenarios to explore trade-offs between ecosystem services and human activities in spatial planning, including for marine protected areas.
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Prof Richard Pywell of the Centre for Ecology & Hydrology is a co-author (with Marek Nowakowski) of Habitat Creation and Management for Pollinators. This freely available guide outlines simple actions for land managers to take to improve the environment for pollinators. Richard's presentation at the launch event for the guide explains more about the years of applied pollinator research that has informed the publication.
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1) The document discusses the benefits of including decision-makers in early project planning, highlighting the AMMA-2050 project which aims to improve understanding of how climate change will impact the West African monsoon and help societies adapt.
2) The FCFA programme will produce climate science focused on Africa to ensure it impacts human development on the continent. Pilot studies in Senegal and Burkina Faso engage decision-makers to support climate-resilient agriculture and urban planning.
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When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
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at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
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We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
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the last few Gyr, consistent with the body of work surrounding the VRM.
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Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
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CEH's River Lambourn Observatory
- 1. CEH RIVER LAMBOURN OBSERVATORY Dr Gareth Old A. House, C. Stratford, C. Roberts, J. Sorensen, D. Gooddy, A. Newell, B. Marchant, O. Mountford, P. Scarlett, R. Ponnambalam, P. Williams and J. Chambers
- 2. CHALK STREAMS • High quality designated habitat; diverse ecology • Stable flows, clear waters, constant temperature, and low nutrients/sediments • Long time ago very different! • Current chalk streams are heavily modified • Return to pristine landscape not possible • Management is a challenge
- 3. Monthly Flow Values, Boxford 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Jul 08 Aug 08 Sept 08 Oct 08 Nov 08 Dec 08 Jan 09 Feb 09 Mar 09 Apr 09 May 09 Jun 09 Cumec Winter Period Peak flow BOXFORD FLOW REGIME
- 4. Widespread agricultural systems: 18th C Managed water levels (SW and GW) : soil moisture, temp. and fertility Widespread abandonment in 20th C Many now recognised as important GDE’s Concern in WFD - vulnerable to environmental change Many are now degrading: restore/conserve WATER MEADOWS
- 6. • Desmoulin’s whorl snail • MG8 veg community Designated SSSI and SAC Condition assessment: “Scrub is beginning to encroach … will need to be addressed shortly to … avoid site becoming unfavourable”. Natural England July 2008
- 7. RESEARCH: HYDROLOGICAL FUNCTIONING • Survey and monitor to model the site – Developed new non-invasive techniques – Conceptual and numerical • Inform management, monitoring and enable assessment of scenarios
- 8. TOPOGRAPHY
- 9. SUBSURFACE GEOLOGY Manual probing Borehole logs Electro resistivity tomography
- 11. GROUNDWATER INPUTS Temperature and chemistry
- 13. INFLUENCE OF THE RIVER
- 14. RIVER DISCHARGE
- 17. CONCLUDING REMARKS CEH River Lambourn Observatory Monitoring and surveying • Non-invasive, low cost and rapid • Information versus investment • Conceptual and numeric model development Test scenarios Results and methods: applicable to other sites
Editor's Notes
- Introduce the CEH research site 600m river lambourn chalk stream and 10ha water meadows Highlight characteristics and pressures