In press. Church, J. Explore information about some of Seattle Public Utilities' completed construction projects, including summaries and documentation. Sea level is measured by two main methods: tide gauges and satellite altimeters. 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. 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). We partner with schools to promote green practices. Using data from scores of stations around the world, scientists can calculate a global average and adjust it for seasonal differences. Climate change is expected to … We are dedicated to public health and a clean environment for everyone. Sea-Level Rise from the Late 19th to the Early 21st Century. By 2050? These two elements contribute to 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. Discover tips for safer gatherings and ideas for alternative ways to celebrate. Construction projects can learn how to salvage or dispose of solid waste during and after the build, including hauling requirements and dust control. As global temperatures continue to warm, sea level will continue to rise. To squeeze or stretch the graph in either direction, hold your Shift key down, then click and drag. We manage Seattle's sewer and drainage systems, including street storm drains and pollution control. Sea level has risen 8–9 inches (21–24 centimeters) since 1880. Clark, A. Cazenave, J.M. Rep. NOS CO-OPS 083. The projections and scenarios are based on a 2018 Washington Coastal Resilience Project (WCRP) report ("Projected Sea Level Rise for Washington State"). NASA photo by Maria-José Viñas. The climate projection methodology is described in full in Rasmussen et al. (2011). 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. 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. Past and future sea level rise at specific locations on land may be more or less than the global average due to local factors: ground settling, upstream flood control, erosion, regional ocean currents, and whether the land is still rebounding from the compressive weight of Ice Age glaciers. The budget of recent global sea level rise: 1995-2013. 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. ... Sea-Level Rise. This shift of liquid water from land to ocean is largely due to groundwater pumping. In IPCC Special Report on the Ocean and Cryosphere in a Changing Climate [H.-O. In some ocean basins, sea level has risen 6-8 inches (15-20 centimeters). The early part of the time series shown in the graph above comes from the sea level group of CSIRO (Commonwealth Scientific and Industrial Research Organisation), Australia's national science agency. 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.)]. NOAA Tech. Climate Resilience Toolkit. Also read about what to do if your bill seems too high. Sign up for a utility discount and get rebates for environmentally friendly practices. The second mechanism is the melting of ice over land, which then adds water to the ocean. Hall, R. Horton, K. Knuuti, R. Moss, J. Obeysekera, A. Sallenger, and J. Weiss. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. Nerem, P.D. In 2012, at the request of the U.S. Volunteer to remove graffiti or join a cleaning event. (2013). Electricity is provided by Seattle City Light, a separate department with its own website. The maps above show temperature anomalies, or changes, not absolute temperature. For more detail on the data sources, see the end of the article. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. Pfeffer, D. Stammer and A.S. Unnikrishnan. By 2005, the glacier had retreated, and the lake had become a small grassland. The City of Seattle makes no representations or warranty as to its accuracy, and in particular, its accuracy as to labeling, completeness, reliability, currency, dimensions, contours, property boundaries or placement of location of any map feature thereon. (The global mean surface air temperature for that period was estimated to be 14°C (57°F), with an uncertainty of several tenths of a degree.) 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. [online: https://tidesandcurrents.noaa.gov/sltrends/] Accessed November 18, 2019. Access manuals, design specifications, and guidelines to meet design and construction rules and requirements, including CAD resources. http://www.star.nesdis.noaa.gov/sod/lsa/SeaLevelRise/documents/NOAA_NESD... https://tidesandcurrents.noaa.gov/sltrends/, http://cpo.noaa.gov/sites/cpo/Reports/2012/NOAA_SLR_r3.pdf, http://www.realclimate.org/index.php/archives/2019/03/alpine-glaciers-another-decade-of-loss/, https://tidesandcurrents.noaa.gov/publications/techrpt83_Global_and_Regional_SLR_Scenarios_for_the_US_final.pdf, https://tidesandcurrents.noaa.gov/publications/NOAA_Technical_Report_NOS_COOPS_073.pdf, Explaining the NOAA Sea Level Rise Viewer, Rising Sea Levels Threaten Hawaiian Sea Turtles’ Nesting Sites, Climate Change: Arctic sea ice summer minimum. 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. 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 … We manage large, regional watersheds that provide some of the cleanest water in the nation. 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 the water system, water quality labs, and metering. SPU has several financial assistance resources available, including flexible payment plans, utility discounts, and emergency bill assistance. The darker line is based on University of Hawaii Fast Delivery sea level data. 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. 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. (2016). Our connection to the community is very important. Globally, sea levels have risen about 7 inches since the beginning of the 20th century. This prevents over-emphasizing regions where there are many tide gauges located in close proximity. Now there's a map for that. (2013). Will your city or county be flooded by 2020? Deeper temperatures are measured by instruments lowered from oceanographic research ships. 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. Second, the volume of the ocean is expanding as the water warms. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Sea level can rise by two different mechanisms with respect to climate change. ALL SUCH SLR INFORMATION AND CONTENT IS PROVIDED ON AN "AS IS", "AS AVAILABLE" BASIS WITHOUT WARRANTIES OF ANY KIND EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, AND NON-INFRINGEMENT. All three utilities strive to operate in a cost-effective, innovative and environmentally responsible manner. How much it will rise depends mostly on the rate of future carbon dioxide emissions and future global warming. 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 water along Seattle's Puget Sound shoreline has risen by more than 6 inches during the past century. Ice loss from the Greenland and Antarctic Ice Sheets as well as alpine glaciers has accelerated in recent decades. 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. PO Box 34018, Seattle, WA, 98124-5177 We have programs to help you save on your utility costs. Explore this interactive graph: Click and drag either axis to display different parts of the graph. Do you have feedback to offer on this or another article?Let us know what you think. The values are shown as change in sea level in millimeters compared to the 1993-2008 average. 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? 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. (Explore past and future frequency of high-tide flooding at U.S. locations with the Climate Explorer, part of the U.S. By overlaying social and economic data on a map that depicts sea level rise, a community can see the potential impact that sea level rise can have on vulnerable people and businesses. 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. https://report.ipcc.ch/srocc/pdf/SROCC_SPM_Approved.pdf. Changes in ocean currents such as the Gulf Stream can also affect sea levels by pushing more water against some coastlines and pulling it away from others, raising or lowering sea levels accordingly. Global warming is causing global mean sea level to rise in two ways. Sea Level Change. Click on the map above for an interactive version. [Online: https://tidesandcurrents.noaa.gov/publications/techrpt83_Global_and_Regional_SLR_Scenarios_for_the_US_final.pdf], Sweet W. V., J. Merrifield, G.A. In the early 20th century, the glacier met the water and calved icebergs into a marginal lake near the bay. 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. 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. 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 provide construction professionals with guidelines, specifications, and permits to connect to Seattle's water and sewer systems. ... A partial melting of this ice sheet would cause a 1-meter (3-foot) rise. The higher the sea level, the faster and stronger the return signal is. In: Climate Change 2013: The Physical Science Basis. View central estimates. We manage public garbage and recycling cans and work to remove illegal dumping, graffiti, sharps, and other pollution in public places. We're here to help. Sweet, W.V., Kopp, R.E., Weaver, C.P., Obeysekera, T., Horton, R.M., Thieler, E.R., and Zervas, C. (2017). In no event will The City of Seattle be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of data or profits arising out of, or in connection with, the use of any SLR information. Accessed November 18 2019. NOAA Climate.gov graph, adapted from Figure 8 in Sweet et al., 2017. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Scientists account for these types of changes by measuring sea level change … Realclimate.org. About the data used in the interactive graph. 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). What Caused the Accelerated Sea Level Changes Along the U.S. East Coast During 2010–2015? We also offer water service in some surrounding areas. 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. 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. NOAA Tech Memo OAR CPO-1. 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. They depict how much various regions of the world have warmed or cooled when compared with a base period of 1951-1980. South Beach, Miami on May 3, 2007. Published by the National Oceanic and Atmospheric Administration. Sea level rise and nuisance flood frequency changes around the U.S. NOAA Technical Report NOS CO-OPS 73, 53p. From 2018 to 2019, global sea level rose 0.24 inches (6.1 millimeters). Regional differences exist because of natural variability in the strength of winds and ocean currents, which influence how much and where the deeper layers of the ocean store heat. If Earth's climate continues to warm, then the volume of present-day ice sheets will decrease. In the early 20th century, the glacier met the water and calved icebergs into a marginal lake near the bay. Church, J.A., P.U. Connect with coastal stakeholders across the country through this interactive map, which allows you to identify and share your observations and experiences with sea-level rise impacts along Canada's coastline. 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. When water melts from Greenland, for example, the drop in mass decreases the gravitational pull from the ice sheet, causing water to slosh toward the shores of South America. 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. Mailing Address: Around the U.S., nuisance flooding has increased dramatically in the past 50 years. Between 1993 and 2018, mean sea level has risen across most of the world ocean (blue colors). 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. View our current water outage map and read about how you can prepare for planned water outages. Antarctic ice loss nearly quadrupled from 51 billion tons per year between 1992 and 2001 to 199 billion tons per year from 2012-2016. Vital Signs of the Planet: Global Climate Change and Global Warming. In urban settings along coastlines around the world, rising seas threaten infrastructure necessary for local jobs and regional industries. From the 1970s up through the last decade or so, melting and heat expansion were contributing roughly equally to observed sea level rise. With high rates of emissions, sea level rise would be much higher, but was unlikely to exceed 6.6 feet higher than 1992 levels. Sea level is measured by two main methods: tide gauges and satellite altimeters. Melt streams on the Greenland Ice Sheet on July 19, 2015. 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. These changes will put pressure on drinking water supplies, food production, property values, and more, in the U.S. and all around the world. See how we maintain these services for you. Potential Sea-Level Changes. (2019). Interactive Map Climate change Snapshots of a warming world. Seattle has over 1,200 miles of sewer pipe. 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. Our large watersheds supply safe and clean drinking water to the greater Seattle area. Coastal flooding is on the rise. 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.)]. 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. New Climate Satellite Measures Sea Level Rise Space is the best place — maybe the only place — to get a complete picture of how climate change … How fast it will rise depends mostly on the rate of glacier and ice sheet melting. Alpine glaciers: Another decade of loss. 75pp. 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. 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 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). Climate Projections. 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. As the world warms, land ice and ice shelves melt, with their water flowing into the global oceans. Find everything to research, obtain permits, install, inspect, or restore pavement for construction involving water lines. From these gravity shifts, scientists estimate the amount of added water. We work to reduce sewer backups, overflow, pollution, and flooding. Nuisance flooding in Annapolis in 2012. Park, J.J. Marra, C. Zervas and S. Gill (2014). The non-vegetated vertical accuracy for the project is calculated at 0.172 feet (0.052 meters). Temperatures in the upper half of the ocean are measured by a global fleet of aquatic robots. Climate change impacts the world’s water in complex ways. First, glaciers and ice sheets worldwide are melting and adding water to the ocean. 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. Leuliette, E. (2014). 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. 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. In press. With climate change, the water cycle is expected to undergo significant change. 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. [online] http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_SPM_FINAL.pdf. We manage sewer, drainage, and waste collection services for residents and businesses in Seattle. Using data from scores of stations around the world, scientists can calculate a global average and adjust it for seasonal differences. In the natural world, rising sea level creates stress on coastal ecosystems that provide recreation, protection from storms, and habitat for fish and wildlife, including commercially valuable fisheries. Parris, A., P.  Bromirski, V. Burkett, D. Cayan, M. Culver, J. Accessed November 2, 2015. 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. Thermal expansion happens when water gets warmer, which causes the volume of the water to increase. Photo by Amy McGovern. Climate Change Science Program, NOAA scientists conducted a review of the research on global sea level rise projections. Map by NOAA Climate.gov based on data provided by Philip Thompson, University of Hawaii. 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. The interactive map, produced by Climate Central, shows the change in the UK in the next 30 years because of rising sea levels. Photo by Flickr user James WIlliamor, via a Creative Commons license. http://doi.org/10.1007/s10712-011-9119-1, Domingues, R., Goni, G., Baringer, M., & Volkov, D. (2018). Seattle Public Utilities maintains 1,600 miles of water pipes. 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. 700 5th Avenue, Suite 4900, Seattle, WA, 98104 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. The values are shown as change in sea level will continue to.. 19Th to the early 21st century it will rise depends mostly on the rise Seattle! Is described in full in Rasmussen et al it for seasonal differences join cleaning. Notifications and measures we take to inform and involve you from scores stations. 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