North American Weather Modification Council的动态

There is an 'adaptation gap' between increases in flood risk and the amount of adaptation that is taking place around the world. Congratulations to Jeroen Aerts and colleagues for this new paper in Nature Water, which explores the drivers of the adaptation gap and its consequences https://lnkd.in/d29qiVrB

A new article in Nature Water presents a risk-based framework to systematically examine the technical, social and behavioural constraints that contribute to adaptation gaps. We argue that, without overcoming these constraints, adaptation gaps will widen under climate change, exposing increasing populations to heightened flood risk. In particular, managers may overestimate the efficacy of flood adaptation measures and underestimate the unequal distribution of flood risks.

Proposing a method that allows reach-based extrapolation to assess ice-jam flood hazard estimation, researchers with the Global Institute for Water Security (GIWS) and Environment and Climate Change Canada created a river model along the Mackenzie River in Canada. https://lnkd.in/gaUnQjaD #watershedmodeling #civilengineering #flooding

Great to see our new open access paper out in Water Resources Research on how peatland restoration can reduce flood peaks arriving at towns downstream: https://lnkd.in/eTdD7nMv At catchment scale, it is not necessary to delay the flood-wave to meaningfully decrease its size downstream. Deferring only a portion of the flood volume to later in the storm on the falling stage of the hydrograph can be sufficient for flood risk mitigation at catchment scale. Through Sphagnum re-establishment, significant flood benefits can be delivered at scales and storms relevant to communities at risk of flooding downstream of peatlands. The latter is something I have suspected for a long time and was first tested with some small-scale plot experiments measuring flow velocity which we published back in 2008 also in Water Resources Research: https://lnkd.in/eWVMbtfw Salim Goudarzi, Martin Evans, Emma Shuttleworth, Donald Edokpa, Tim Allott

Engaging article showing the impact of ground subsidence on the US East Coast, based on the research led by Leonard Ohenhen. Our key takeaways: ? “Patches of land that sink or rise more quickly than adjacent areas can also do outsize damage, cracking foundations and destabilizing structures over time.” ?“A few millimeters of sinking a year can seem gradual, but the effects can be extreme: storm surges can suddenly wash away the soil from beneath the roads, or floodwaters can fill basements and cut off emergency routes. Each inch the land slumps towards the water table can make floods significantly, catastrophically worse.” KorrAI’s remote monitoring solutions help identify ground motion risk across entire states.?? https://lnkd.in/eM-7jJwS ?#infrastructureresilience #remotesensing #geotechnicalengineering #insar

Coastal Lands Sinking 'Disaster in Slow Motion' A new study warns that rapidly sinking coastal lands could disasterously amplify flooding along the East Coast. Using satellite data, researchers discovered over half the infrastructure in major coastal cities is built on land subsiding up to 3 times faster than seas are rising. This little-known but widespread phenomenon makes coastal areas far more vulnerable to regular flooding and storm damage. Experts call subsidence a "slow motion disaster" that could displace millions and cause trillions in losses if unchecked. They urge immediate risk assessments and mitigation plans focused on managing human drivers of subsidence, like excessive groundwater pumping. Controlling sinking lands is key to coastal communities enduring rising seas. https://lnkd.in/dKQ4xB7F

Flood and drought risks don’t adhere to international borders. The Netherlands, Belgium, Luxembourg, and Germany are working together to strengthen cooperation and share their knowledge of these challenges. The JCAR ATRACE programme, coordinated by Deltares, improves cross-border cooperation in flood and drought management and research. As part of this cooperation, an independent research into high-potential measures against extreme weather impacts in the cross-border catchment of the Rur river was announced. The research will initially focus on developing and implementing a cross-border extreme weather stress test. This will create a joint understanding of what our society might face in the future, and which measures have the best potential to manage potential consequences. The announcement was part of a workshop held at the Rurtalsperre, in Germany’s North Rhine-Westphalia. Participants were joined by the Dutch Minister for Infrastructure and Water Management, Mark Harbers, and the North Rhine-Westphalian State Minister for the Environment, Oliver Krischer. With our expertise in operational and strategic river management, we will work closely with our regional and international partners on much-needed knowledge, to ensure our societies are resilient - both now and in the future. #EnablingDeltaLife #flood #drought #internationalcooperation

Strong tropical wave moving through the northern Caribbean Sea. ? The large tropical wave that has been discussed for about a week now is starting to show signs of organization in the last 24 hours while moving over the NE Caribbean Sea and adjacent Atlantic waters. Over the last 2 days shower and thunderstorm development in association with this wave axis has become better organized, but there is no defined circulation at the surface at this time. ? The wave axis will continue to move toward the west over the next 2-3 days and will move toward the area around Cuba by early this weekend. Conditions will gradually become increasingly favorable for development, but land interaction will likely prevent any sort of significant development in the near term unless some sort of surface center forms either south or north of the inlands. Toward this weekend it is now likely that the wave will enter the eastern Gulf of Mexico and slow and the steering pattern will become highly complex. Earlier considerations of any tropical system being picked up by a trough of low pressure over the eastern US and passing east of FL and generally gone at this point. Generally a weaker system and delayed development is going to get further west into the eastern Gulf of Mexico and it is questionable if the system will “feel” enough of a tug from the trough to get pulled northeast across FL or if ridging building over the central plains and eventually the SE US next week blocks that option and leaves the system to meander over the eastern Gulf or near the FL coast. To say the uncertainty is high…is an understatement…and there are numerous outcomes that could transpire over the next 5-7 days in the eastern Gulf of Mexico. ? Conditions will be fairly favorable for development over the eastern Gulf of Mexico including very warm sea surface temperatures, light wind shear, and the potential for favorable dual outflow channels aloft. Similar to track, guidance is all over the place on the intensity along with the various ensemble members…most keep the system weak which is interesting given a fairly favorable looking setup in the eastern Gulf late this weekend into next week and some of this may be due to the broad nature of the wave axis and the potential stretching of the axis over the eastern Gulf…but once a defined surface center does form intensification looks likely. ?? Jeff Lindner Director Hydrologic Operations Division/Meteorologist Harris County Flood Control District

? Did you know that Natural Resources Canada | Ressources naturelles Canada recently published the new version of the "Federal Hydrologic and Hydraulic Procedures for Flood Hazard Delineation"? ?? Federal Hydrologic and Hydraulic Procedures for Flood Hazard Delineation - Version 2.0 (2023) This second edition expands on key topics and aims to provide improved guidance on: ? Climate change; ? Uncertainty; ? Lakeshore flooding; and ? Multiple other improvements including reorganizing to meet the needs of two target audiences: 1?? governments procuring technical studies involved in flood management; 2?? and flood mapping practitioners. The update was led by Environment and Climate Change Canada experts, in consultation with the flood mapping community and under the leadership of the Federal Flood Mapping Committee. Download link: https://lnkd.in/e7wF_A3Y To learn more about the Federal Flood Mapping Guidelines Series: https://lnkd.in/eGfczbtR #FloodMapping #Canada #Hydrology #Hydraulics #Guidance #FederalFloodMappingGuidelinesSeries #FloodHazardIdentificationandMappingProgram #NationalAdaptationStrategy

“We live here because of nature”: transformation towards better flood resilience on small Danish islands - is the title of the 8th paper published in a CliCNord topical collection titled “Place Attachment and Climate-related Hazard in Small Remote Communities” in the Regional Environmental Change journal. The majority of CliCNord’s papers will be published in this collection. ? The authors are Nina Baron and Rico Kongsager from University College Copenhagen (K?benhavns Professionsh?jskole) ? Read it at: https://lnkd.in/deCm2HDa (Open Access) ? Abstract Climate change is increasing the threat of flooding on small Danish islands. This article presents the results of a qualitative case study of flood risk perceptions and adaptive actions on three small Danish islands. The study explores how an empirical study of the islanders’ sense of place can contribute to a transformation towards better flood resilience. It finds that sense of place is closely connected to living close to nature, but also it highlights that the meaning given to ‘nature’ varies among the islanders. For some, nature is an uncultivated, wild landscape; for others, it is the present, cultural landscape. Another difference concerns whether the islands are described as a place to make a living or as a place to get away from everyday life. For some, farming and grazing are central to how they make a living on the islands; for others, these activities belong to the past. This insight into differences in the islanders’ sense of place contributes to understanding different perspectives regarding what is worth protecting, and what it is possible to protect from flooding, as well as why it is difficult for the islanders to reach agreement on the subject. This understanding has transformative potential, as it can give the islanders themselves, as well as authorities responsible for flood protection, a valuable insight into what drives and hinders actions to manage or reduce flood risk on small islands. ? This project has received funding from the NordForsk Nordic Societal Security Programme under Grant Agreement No. 97229 #CliCNord #research #climatechange #kbhprof #katrisk #uwestfjords #lbhi #auis #uit #norgesarktiske #ntnu #risesweden #lunduniversity #lucsus_lu #nordforsk #cope_ku