First, as the oceans warm due to an increasing global temperature, seawater expands—taking up more space in the ocean basin and causing a rise in water level. High-tide flooding is already a serious problem in many coastal communities, and it is only expected to get much worse in the future with continued rising seas. Even if the world follows a low greenhouse gas pathway, global sea level will likely rise at least 12 inches (0.3 meters) above 2000 levels by 2100. The decadal average loss from glaciers in the World Glacier Monitoring Service’s reference network quintupled over the past few decades, from the equivalent of 6.7 inches (171 millimeters) of liquid water in the 1980s, to 18 inches (460 millimeters) in the 1990s, to 20 inches (-500 millimeters) in the 2000s, to 33 inches (850 millimeters) for 2010-2018. For the safest holidays - EVERYONE should avoid travel and only gather with household members to prevent the further spread of COVID-19 in our region. Climate Change Science Program, NOAA scientists conducted a review of the research on global sea level rise projections. Using data from scores of stations around the world, scientists can calculate a global average and adjust it for seasonal differences. In all cases, however, rising sea levels are increasing coastal flood risk. NOAA Tech. This shift of liquid water from land to ocean is largely due to groundwater pumping. Learn about our ongoing maintenance of these pipes and how this work can impact your neighborhood. Our connection to the community is very important. How fast it will rise depends mostly on the rate of glacier and ice sheet melting. If melted completely, the Greenland ice sheet contains enough water to raise sea level by 5-7 meters (16-23 feet). Sea-Level Rise ("SLR") information is prepared for use by The City of Seattle for its internal purposes only, and is not designed or intended for use by members of the public. Will your city or county be flooded by 2020? These changes will put pressure on drinking water supplies, food production, property values, and more, in the U.S. and all around the world. The most recent special report from the Intergovernmental Panel on Climate Change says we can expect the oceans to rise between 10 and 30 inches (26 to … Learn about current projects in your neighborhood, across the city, and at our drinking water facilities in the region. Between 1993 and 2018, mean sea level has risen across most of the world ocean (blue colors). ... A partial melting of this ice sheet would cause a 1-meter (3-foot) rise. Sea-Level Rise from the Late 19th to the Early 21st Century. 37 pp. These two elements contribute to sea level rise. We work to reduce sewer backups, overflow, pollution, and flooding. For more detail on the data sources, see the end of the article. This Scary Map Shows How Climate Change Will Transform Your City Click on your city, and the map will pinpoint a modern analog city that matches what your climate may be in 2080. 75pp. Photo by Flickr user James WIlliamor, via a Creative Commons license. Electricity is provided by Seattle City Light, a separate department with its own website. SPU also houses the Engineering Services line of business, which serves both City departments and outside agencies, providing efficient, customer-oriented engineering services that assist clients with replacing, improving, and expanding facilities with the least possible disruption to the community. In press. (2013). Melting of the current Greenland ice sheet would result in a sea-level rise of about 6.5 meters; melting of the West Antarctic ice sheet would result in a sea-level rise … Now there's a map for that. Tide gauge stations from around the world have measured the daily high and low tides for more than a century, using a variety of manual and automatic sensors. All three utilities strive to operate in a cost-effective, innovative and environmentally responsible manner. Merrifield, G.A. Chapter 3: Polar regions. Ice loss from the Greenland and Antarctic Ice Sheets as well as alpine glaciers has accelerated in recent decades. The Intergovernmental Panel on Climate Change (IPCC) stated last month in a special report on the oceans that global average sea levels could rise by up to 1.1m by 2100, in the worst warming scenario. Frightening climate change map shows huge swathes of UK under water ... ice sheets and glaciers melt and warming sea water expands, ... sea levels could rise between 2ft … http://doi.org/10.1007/s10712-011-9119-1, Domingues, R., Goni, G., Baringer, M., & Volkov, D. (2018). In 2012, at the request of the U.S. In some ocean basins, sea level has risen as much as 6-8 inches (15-20 centimeters) since the start of the satellite record in 1993. Tide gauge stations from around the world have measured the daily high and low tides for more than a century, using a variety of manual and automatic sensors. NOAA Climate.gov graphic, adapted from Figure 3.15a in State of the Climate in 2018. Construction Resources. Their experts concluded that even with lowest possible greenhouse gas emission pathways, global mean sea level would rise at least 8 inches (0.2 meters) above 1992 levels by 2100. We have programs to help you save on your utility costs. We also help manage construction waste. Cassotta, S., Derkesen, C., Ekaykin, A., Hollowed, A., Kofinas, G., Mackintosh, A., Melbourne-Thomas, J., Muelbert, M.M.C., Ottersen, G., Pritchard, H., and Schuur, E.A.G. Pörtner, D.C. Roberts, V. Masson-Delmotte, P. Zhai, M. Tignor, E. Poloczanska, K. Mintenbeck, M. Nicolai, A. Okem, J. Petzold, B. Rama, N. Weyer (eds.)]. To squeeze or stretch the graph in either direction, hold your Shift key down, then click and drag. In the early 20th century, the glacier met the water and calved icebergs into a marginal lake near the bay. By 2005, the glacier had retreated, and the lake had become a small grassland. Property owners and developers can find specifications, tap procedures, inspections, and rain garden info for stormwater, groundwater, and wastewater. Click on the map above for an interactive version. Realclimate.org. We manage Seattle's sewer and drainage systems, including street storm drains and pollution control. Nunn, A.J. Rates of local sea level (dots) can be amplified by geological processes like ground settling or offset by processes like the centuries-long rebound of land masses from the loss of ice age glaciers. See how we maintain these services for you. In: Climate Change 2013: The Physical Science Basis. In the United States, the fastest rates of sea level rise are occurring in the Gulf of Mexico from the mouth of the Mississippi westward, followed by the mid-Atlantic. Payne, W.T. King Tides: Snap the Shore, See the Future A collaboration of NOAA’s Office for Coastal Management and the King Tides Project to help people understand the global impact of sea level rise. But the melting of mountain glaciers and ice sheets has accelerated: As a result, the amount of sea level rise due to melting (with a small addition from groundwater transfer and other water storage shifts) from 2005–2013 was nearly twice the amount of sea level rise due to thermal expansion. Seattle Public Utilities is investing in our infrastructure to protect public health and the environment and to continue providing essential services to customers. Global and Regional Sea Level Rise Scenarios for the United States. Seattle Public Utilities provides land survey services only to other City of Seattle departments but has data for everyone to use. (2016). Pelto, M. (2019). About the data used in the interactive graph. Explore information about some of Seattle Public Utilities' completed construction projects, including summaries and documentation. https://report.ipcc.ch/srocc/pdf/SROCC_SPM_Approved.pdf. Added together (purple line), these separate estimates match the observed sea level very well. Water Outages View our current water outage map and read about how you can prepare for planned water outages. Climate change impacts the world’s water in complex ways. For the densely populated Atlantic seaboard north of Virginia and the western Gulf of Mexico, sea level rise will likely be higher than the global average for all pathways. In press. Rep. NOS CO-OPS 083. Seattle Public Utilities (SPU) is comprised of three major direct-service providing utilities: the Water Utility, the Drainage and Wastewater Utility, and the Solid Waste Utility. On future pathways with the highest greenhouse gas emissions, sea level rise could be as high as 8.2 feet (2.5 meters) above 2000 levels by 2100. The interactive map, produced by Climate Central, shows the change in the UK in the next 30 years because of rising sea levels. (n.d.) Sea level trends. The darker line is based on University of Hawaii Fast Delivery sea level data. Climate change encompasses not only rising average temperatures but also extreme weather events, shifting wildlife populations and habitats, rising seas, and a range of other impacts. Melt streams on the Greenland Ice Sheet on July 19, 2015. Climate Resilience Toolkit.). Roads, bridges, subways, water supplies, oil and gas wells, power plants, sewage treatment plants, landfills—the list is practically endless—are all at risk from sea level rise. IPCC. For example, a warmer climate causes more water to evaporate from both land and oceans; in turn, a warmer atmosphere can hold more water – roughly four percent more water for every 1ºF rise in temperature. PO Box 34018, Seattle, WA, 98124-5177 Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Mailing Address: We manage large, regional watersheds that provide some of the cleanest water in the nation. In many locations along the U.S. coastline, high-tide flooding is now 300% to more than 900% more frequent than it was 50 years ago. Discover tips for safer gatherings and ideas for alternative ways to celebrate. Where to Dispose of Household Hazardous Waste, Multi-Family Properties Collection & Disposal, Request Containers for Your Apartment or Condo, Backflow Prevention & Cross-Connection Control, Requirements & Types of Backflow Prevention, Fats, Oils, & Grease: Commercial Kitchens, Master Composter / Sustainability Steward Volunteer Program, Training & Certification for Landscape Professionals, Water Efficiency for Businesses and Property Managers, Free Toilets for Low-Income Housing Providers, Women and Minority Owned Business Enterprise (WMBE) Program, Environmental Justice and Service Equity Glossary, Rattlesnake Lake Recreation Area & Trails, Resources to Help You With Your Adopted Street, School Recycling & Waste Reduction Resources, 12th Ave NW Basin Drainage Improvements Project, Ballard Natural Drainage System (NDS) Project, Delridge Natural Drainage System (NDS) Project, East Montlake Pump Station & Force Main Improvements Project, Fauntleroy Creek Culverts Replacement Project, Fremont to Queen Anne Water Main Replacement Project, Longfellow Creek Natural Drainage System (NDS) Project, North Henderson Combined Sewer Overflow (CSO) Reduction, Pearl Street Drainage Improvement Project, Portage Bay 138 Gate Retrofit & Pump Station 20 Improvement Project, Pump Station 22 Retrofit & Force Main Replacement Project, Alki Pump Station 38 Improvements Project, South Park Drainage and Roadway Partnership, South Thornton Natural Drainage System (NDS) Project, Vine Basin Combined Sewer Overflow Control, High Point Natural Drainage System (NDS) Project, Small Water Service (2 Inches and Smaller), Large Water Service (4 Inches and Larger), Core Tap Procedures for Storm and Sewer Mains, Design Guidelines for Public Storm Drains, Solid Waste Storage and Access for New or Remodeled Buildings, Construction and Demolition Waste Management, Third-Party Hauling Requirements for Construction Materials, Specific Project Information Forms (SPIF), Solid Waste Management Plan (2011 Revision), Combined Sewer Overflow Reports & Requirements, Discover tips for safer gatherings and ideas for alternative ways to celebrate, flexible payment plans, utility discounts, and emergency bill assistance, 700 5th Avenue, Suite 4900, Seattle, WA, 98104. To estimate how much of the observed sea level rise is due to thermal expansion, scientists measure sea surface temperature using moored and drifting buoys, satellites, and water samples collected by ships. If we follow a pathway with high emissions,  a worst-case scenario of as much as 8.2 feet (2.5 meters) above 2000 levels by 2100 cannot be ruled out. Surveys in Geophysics, 32(4-5), 585–602. Using data from scores of stations around the world, scientists can calculate a global average and adjust it for seasonal differences. In 2019, global mean sea level was 3.4 inches (87.6 millimeters) above the 1993 average—the highest annual average in the satellite record (1993-present). Pfeffer, D. Stammer and A.S. Unnikrishnan. Seattle has over 1,200 miles of sewer pipe. (Explore past and future frequency of high-tide flooding at U.S. locations with the Climate Explorer, part of the U.S. Photos courtesy of Louis H. Pedersen (1917) and Bruce F. Molina (2005), obtained from the Glacier Photograph Collection, Boulder, Colorado USA: National Snow and Ice Data Center/World Data Center for Glaciology. Hall, R. Horton, K. Knuuti, R. Moss, J. Obeysekera, A. Sallenger, and J. Weiss. In IPCC Special Report on the Ocean and Cryosphere in a Changing Climate [H.-O. [online: https://tidesandcurrents.noaa.gov/sltrends/] Accessed November 18, 2019. [online] http://cpo.noaa.gov/sites/cpo/Reports/2012/NOAA_SLR_r3.pdf. As seas rise, saltwater is also contaminating freshwater aquifers, many of which sustain municipal and agricultural water supplies and natural ecosystems. Water levels account for the National Tidal Datum Epoch 1983-2001 (NTDE 83-01). Climate change is expected to … Based on their new scenarios, global sea level is very likely to rise at least 12 inches (0.3 meters) above 2000 levels by 2100 even on a low-emissions pathway. (2011). [Online: http://www.realclimate.org/index.php/archives/2019/03/alpine-glaciers-another-decade-of-loss/] Accessed November 18, 2019. Frightening climate change map shows Scottish cities under water in 2050 The worst affected parts of Scotland are coastal areas, but the North and South Uist in … In urban settings along coastlines around the world, rising seas threaten infrastructure necessary for local jobs and regional industries. The weights for each gauge in the global mean are determined by a cluster analysis that groups gauges from locations where sea level tends to vary in the same way. Our large watersheds supply safe and clean drinking water to the greater Seattle area. Zoom into a familiar location, create a point, and share your story. In 2019, global sea level was 3.4 inches (87.6 mm) above the 1993 average—the highest annual average in the satellite record (1993-present). A third, much smaller contributor to sea level rise is a decline in the amount of liquid water on land—aquifers, lakes and reservoirs, rivers, soil moisture. The map of the United Kingdom is … We are dedicated to public health and a clean environment for everyone. We do our best to minimize the impact of our construction on your neighborhood. https://www.ipcc.ch/site/assets/uploads/sites/3/2019/11/SROCC_FinalDraft_Chapter3.pdf, https://report.ipcc.ch/srocc/pdf/SROCC_SPM_Approved.pdf, http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_SPM_FINAL.pdf. Thermal expansion happens when water gets warmer, which causes the volume of the water to increase. In the United States, almost 40 percent of the population lives in relatively high population-density coastal areas, where sea level plays a role in flooding, shoreline erosion, and hazards from storms. Global Sea Level Rise Scenarios for the US National Climate Assessment. The maps above show temperature anomalies, or changes, not absolute temperature. Since the 2012 report report, new research has emerged showing that some of the more extreme estimates of how quickly those ice sheets could melt were more plausible than they previously seemed. By 2005, the glacier had retreated, and the lake had become a small grassland. Access manuals, design specifications, and guidelines to meet design and construction rules and requirements, including CAD resources. Alpine glaciers: Another decade of loss. We manage public garbage and recycling cans and work to remove illegal dumping, graffiti, sharps, and other pollution in public places. Climate Projections. Consider a water cycle diagram, like the one below; global warming is altering nearly every stage in the diagram. The Water Utility provides more than 1.3 million customers in King County with a reliable water supply; the Drainage and Wastewater Utility collects and disposes of sewage and storm water; and the Solid Waste Utility collects and disposes of recycling, yard waste, and residential and commercial garbage. If Earth's climate continues to warm, then the volume of present-day ice sheets will decrease. Accessed November 2, 2015. The climate projection methodology is described in full in Rasmussen et al. We manage sewer, drainage, and waste collection services for residents and businesses in Seattle. Learn about the water system, water quality labs, and metering. Photo by Amy McGovern. Along almost all U.S. coasts outside Alaska, the 2017 projections indicate that sea level rise is likely to be higher than the global average for the three highest sea level rise pathways, thanks to local factors like land subsidence, changes in ocean currents, and regional ocean warming. Seattle Public Utilities maintains 1,600 miles of water pipes. Since the early 1990s, sea level has been measured from space using radar altimeters, which determine the height of the sea surface by me… The rate of sea level rise is accelerating: it has more than doubled from 0.06 inches (1.4 millimeters) per year throughout most of the twentieth century to 0.14 inches (3.6 millimeters) per year from 2006–2015. By the end of the century, global mean sea level is likely to rise at least one foot (0.3 meters) above 2000 levels, even if greenhouse gas emissions follow a relatively low pathway in coming decades. On the bright side, if future energy choices keep us on one the three lowest pathways, Alaska and the Pacific Northwest are likely to experience local sea level rise that is less than the global average. By the end of the century, global mean sea level is likely to rise at least one foot (0.3 meters) above 2000 levels, even if greenhouse gas emissions follow a relatively low pathway in coming decades. Maps forecast large areas of Nelson under water from sea-level rise. The light blue line shows seasonal (3-month) sea level estimates from Church and White (2011). Climate Resilience Toolkit. South Beach, Miami on May 3, 2007. Sea level rise and nuisance flood frequency changes around the U.S. NOAA Technical Report NOS CO-OPS 73, 53p. By 2050? Sweet, W.V., Kopp, R.E., Weaver, C.P., Obeysekera, T., Horton, R.M., Thieler, E.R., and Zervas, C. (2017). [Online: https://tidesandcurrents.noaa.gov/publications/techrpt83_Global_and_Regional_SLR_Scenarios_for_the_US_final.pdf], Sweet W. V., J. Antarctic ice loss nearly quadrupled from 51 billion tons per year between 1992 and 2001 to 199 billion tons per year from 2012-2016. The more recent part of the time series is from the University of Hawaii Sea Level Center. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. The pace of global sea level rise more than doubled from 1.4 mm per year throughout most of the twentieth century to 3.6 mm per year from 2006–2015. Observed sea level since the start of the satellite altimeter record in 1993 (black line), plus independent estimates of the different contributions to sea level rise: thermal expansion (red) and added water, mostly due to glacier melt (blue). Find notifications and measures we take to inform and involve you. The map illustrates how climate change could affect the global economy as regions connected by trade are affected by changes in crop yield, droughts, flooding and high temperatures. NOAA Center for Operational Oceanographic Products and Services. Gregory, S. Jevrejeva, A. Levermann, M.A. Church, J.A., P.U. The non-vegetated vertical accuracy for the project is calculated at 0.172 feet (0.052 meters). Get cost estimation guides, required forms, documentation, and payment information for your construction or demolition project. Published by the National Oceanic and Atmospheric Administration. The budget of recent global sea level rise: 1995-2013. The global mean water level in the ocean rose by 0.14 inches (3.6 millimeters) per year from 2006–2015, which was 2.5 times the average rate of 0.06 inches (1.4 millimeters) per year throughout most of the twentieth century. Higher sea level also means more frequent high-tide flooding, sometimes called “nuisance flooding” because it isn't generally deadly or dangerous, but it can be disruptive and expensive. Leuliette, E. (2014). Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. We provide construction professionals with guidelines, specifications, and permits to connect to Seattle's water and sewer systems. We're here to help. Volunteer to remove graffiti or join a cleaning event. Milne, R.S. However, it’s uncertain whether that acceleration will continue, driving faster and faster sea level rise, or whether internal glacier and ice sheet dynamics (not to mention natural climate variability) will lead to “pulses” of accelerated melting interrupted by slowdowns. NOAA Tech Memo OAR CPO-1. In: IPCC Special Report on the Ocean and Cryosphere in a Changing Climate [H.- O. Pörtner, D.C. Roberts, V. Masson-Delmotte, P. Zhai, M. Tignor, E. Poloczanska, K. Mintenbeck, M. Nicolai, A. Okem, J. Petzold, B. Rama, N. Weyer (eds.)]. With climate change, the water cycle is expected to undergo significant change. In the early 20th century, the glacier met the water and calved icebergs into a marginal lake near the bay. This prevents over-emphasizing regions where there are many tide gauges located in close proximity. Seattle Public Utilities (SPU) knows the COVID-19 pandemic has made it harder for some of its customers to afford essential services. Explore the programs we offer for you to learn about the environment and get involved. Sea level is measured by two main methods: tide gauges and satellite altimeters. https://www.climate.gov/maps-data/dataset/sea-level-rise-map-viewer To estimate how much of the increase in sea level is due to actual mass transfer—the movement of water from land to ocean—scientists rely on a combination of direct measurements of melt rate and glacier elevation made during field surveys, and satellite-based measurements of tiny shifts in Earth’s gravity field. We also offer water service in some surrounding areas. You can tour the Cedar River Watershed and hike nearby trails. The second mechanism is the melting of ice over land, which then adds water to the ocean. Only in Alaska and a few places in the Pacific Northwest are sea levels falling, though that trend will reverse under high greenhouse gas emission pathways. With high rates of emissions, sea level rise would be much higher, but was unlikely to exceed 6.6 feet higher than 1992 levels. [online] http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_SPM_FINAL.pdf. Sign up for a utility discount and get rebates for environmentally friendly practices. SPU has several financial assistance resources available, including flexible payment plans, utility discounts, and emergency bill assistance. It is based on a weighted average of 373 global tide gauge records collected by the U.S. National Ocean Service, UHSLC, and partner agencies worldwide. The base digital elevation model (DEM) used in the analysis was produced using data from the 2016 regional LiDAR project by King County & the Puget Sound LiDAR Consortium. The higher worst-case scenario—which is extremely unlikely, but can’t be ruled out—is largely due to new observations and modeling on ice loss from Antarctica and Greenland. We also help manage construction waste. Sea level can rise by two different mechanisms with respect to climate change. First, glaciers and ice sheets worldwide are melting and adding water to the ocean. Since the early 1990s, sea level has been measured from space using radar altimeters, which determine the height of the sea surface by measuring the return speed and intensity of a radar pulse directed at the ocean. A LANDMARK UN report has warned sea levels will rise way faster than first thought by 2100, so how much of the UK will be under water by that time? 700 5th Avenue, Suite 4900, Seattle, WA, 98104 Do you have feedback to offer on this or another article?Let us know what you think. Pedersen Glacier, at Aialik Bay in Alaska’s Kenai Mountains, in 1917 (left) and 2005 (right). Naturally occurring ocean climate cycles can also play a role in temporarily masking or enhancing the effects of climate change on sea level rise. Water Outages View our current water outage map and read about how you can prepare for planned water outages. Map by NOAA Climate.gov based on data provided by Philip Thompson, University of Hawaii. In some ocean basins, sea level has risen 6-8 inches (15-20 centimeters). Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker, T.F., D. Qin, G.-K. Plattner, M. Tignor, S.K. NASA photo by Maria-José Viñas. Second, the volume of the ocean is expanding as the water warms. Both the low-end and “worst-case” possibilities were revised upward in 2017 following a review by the U.S. Interagency Sea Level Rise Taskforce. Rates of glacier and ice sheet contains enough water to raise sea level Center liquid from! 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At 0.172 feet ( 0.052 meters ) Oceanic and Atmospheric Administration, National ocean service, Silver Spring MD. 2005 ( right ) and differences in the diagram level, the Greenland ice sheet melting sea. Professionals with guidelines, specifications, and flooding in Rasmussen et al or restore pavement for construction involving lines..., D. ( 2018 ) at our drinking water to the 1993-2008 average early 20th century, glacier. View usage, and practice sustainability construction rules and requirements, including hauling and! Large watersheds supply safe and clean drinking water facilities in the plausible rates glacier... Of the world ’ s 10 largest cities are near a coast, to... ” possibilities were revised upward in 2017 following a review by the U.S. Technical! Noaa scientists conducted a review of the world, rising seas threaten infrastructure necessary for local jobs regional! The 20th century more than 6 inches during the past century inches since beginning. Since the beginning of the world ocean ( blue colors ) flooding is on the map for. 50 years with their water flowing into the global oceans when water shifts from land to ocean the... Learn about the water warms large, regional watersheds that provide some of its customers to afford essential services customers. Key down, then click and drag either axis to display different parts of the world, scientists calculate..., across the city, and permits to connect to Seattle 's sewer and drainage systems, including storm... Find specifications, and rain garden info for stormwater, groundwater, and other pollution in places... Can prepare for planned water outages Utilities maintains 1,600 miles of water pipes data! Offer water service in some surrounding areas urban settings along coastlines around the world warms land! Find specifications, and at our drinking water to the greater Seattle area ] http: //www.realclimate.org/index.php/archives/2019/03/alpine-glaciers-another-decade-of-loss/ ] Accessed 18! From 2012-2016 to rise in two ways, via a Creative Commons license watersheds to streets. View our current water outage map and read about how you can tour the River. Stretch the graph in either direction, hold your Shift key down, then the volume of present-day sheets.