U.S. Sea Level Rise Projections - Water Level Station

The points in this layer represent the water level station mean sea level rise projections in centimeters (cm) for years 2020 to 2150. Each location includes five different Global Mean Sea Level (GMSL) scenarios and three different uncertainty confidence limits (percentiles). The difference in GMSL uses the year 2000 as a "baseline" (0.0m). Global Mean Sea Level in year 2100 Scenario Name 0.3 m Low 0.5 m Intermediate-Low 1.0 m Intermediate 1.5 m Intermediate-High 2.0 m High The Global Mean Sea Level impacts regions differently due to issues such as vertical land movement/subsidence, regional ocean dynamics, glacier and ice sheet melt, etc. Percentile Name 17th Low 50th Medium 83rd High These percentiles are intended to capture uncertainty associated with extrapolating the rate of sea level rise acceleration based on historical observations for each location. Water level stations collect water levels in real time that can be used for operational purposes (vessel navigation, etc.). Some water level stations have been collecting information for over a century. This information is used to determine a trend and also in predictions about the different sea level rise scenarios into the future. This is an example water level station in Sewells Point, Virginia that has been collecting water level data since 1927: Station Home Most stations also have a Sea Level Trend that can be viewed for better understanding of the changes over time. Sea Level Trend There are 5 different scenarios and 3 different percentiles that provide a total of 15 different possibilities for interpreting sea level rise for a given location. Using this layer, you can “Filter” the data to select what is most appropriate for your work. Here is how you do that: These data were obtained from the Sea Level Rise Technical Report “Data and Tools” section. The Sea Level Rise Technical Report Application Guide provides a wealth of documentation for interpreting and using the various data products from the Sea Level Rise Technical Report. This water level station layer has a companion layer of the U.S. Sea Level Rise Projections - Grid. Source: Mean Sea Level Dataset for "Global and Regional Sea Level Rise Scenarios for the United States: Updated Mean Projections and Extreme Water Level Probabilities Along U.S. Coastlines" Citation: Sweet, W.V., B.D. Hamlington, R.E. Kopp, C.P. Weaver, P.L. Barnard, D. Bekaert, W. Brooks, M. Craghan, G. Dusek, T. Frederikse, G. Garner, A.S. Genz, J.P. Krasting, E. Larour, D. Marcy, J.J. Marra, J. Obeysekera, M. Osler, M. Pendleton, D. Roman, L. Schmied, W. Veatch, K.D. White, and C. Zuzak, 2022: Global and Regional Sea Level Rise Scenarios for the United States: Updated Mean Projections and Extreme Water Level Probabilities Along U.S. Coastlines. NOAA Technical Report NOS 01. National Oceanic and Atmospheric Administration, National Ocean Service, Silver Spring, MD, 111 pp. https://oceanservice.noaa.gov/hazards/sealevelrise/noaa-nos-techrpt01-global-regional-SLR-scenarios-US.pdf Scenario: For each of the 5 GMSL scenarios (identified by the rise amounts in meters by 2100 - 0.3 m , 0.5 m. 1.0 m, 1.5 m and 2.0 m), there is a low, medium (med) and high value, corresponding to the 17th, 50th, and 83rd percentiles. Scenarios (15 total): 0.3 - MED, 0.3 - LOW, 0.3 - HIGH, 0.5 - MED, 0.5 - LOW, 0.5 - HIGH, 1.0 - MED, 1.0 - LOW, 1.0 - HIGH, 1.5 - MED, 1.5 - LOW, 1.5 - HIGH, 2.0 - MED, 2.0 - LOW, and 2.0 - HIGH Years (15 total): 2005, 2020, 2030, 2040, 2050, 2060, 2070, 2080, 2090, 2100, 2110, 2120, 2130, 2140, and 2150 More Info: https://oceanservice.noaa.gov/hazards/sealevelrise/sealevelrise-tech-report.html

本图层中的点位代表2020年至2150年各水位站的平均海平面上升预测值，单位为厘米（cm）。每个站点包含5种不同的全球平均海平面（Global Mean Sea Level, GMSL）情景，以及3种不同的不确定性置信限（百分位数）。本研究以2000年作为海平面变化的基准年（0.0米），以此计算全球平均海平面的差值。
2100年全球平均海平面情景分别为：0.3米（低情景）、0.5米（中低情景）、1.0米（中等情景）、1.5米（中高情景）、2.0米（高情景）。
由于垂直陆地运动/沉降、区域海洋动力学、冰川与冰盖消融等因素的影响，全球平均海平面对不同区域的影响存在差异。
百分位数分为17%（低）、50%（中等）、83%（高），这些百分位数用于表征基于各站点历史观测数据外推海平面上升速率时所伴随的不确定性。
水位站可实时采集水位数据，用于船舶导航等业务用途。部分水位站已持续采集数据超过一个世纪，这些数据可用于确定水位变化趋势，并用于未来不同海平面上升情景的预测。
以弗吉尼亚州瑟韦尔波因特（Sewells Point）的一处水位站为例，该站自1927年起开始采集水位数据：站点主页。大多数站点还可查看海平面变化趋势，以便更好地理解随时间推移的水位变化。
本数据集共包含5种情景与3种百分位数，总计15种不同的组合方式，用于解读特定站点的海平面上升情况。通过本图层，您可以对数据进行“筛选”，选取最适配您研究工作的组合方式，操作方法如下：
本数据集源自《海平面上升技术报告》的“数据与工具”板块。《海平面上升技术报告应用指南》提供了丰富的文档资料，用于解读和使用《海平面上升技术报告》中的各类数据产品。本水位站图层配套有“美国海平面上升预测-格网”图层。
数据来源：《美国全球及区域海平面上升情景：美国沿海地区平均预测更新与极端水位概率》的平均海平面数据集。
引用格式：Sweet, W.V., B.D. Hamlington, R.E. Kopp, C.P. Weaver, P.L. Barnard, D. Bekaert, W. Brooks, M. Craghan, G. Dusek, T. Frederikse, G. Garner, A.S. Genz, J.P. Krasting, E. Larour, D. Marcy, J.J. Marra, J. Obeysekera, M. Osler, M. Pendleton, D. Roman, L. Schmied, W. Veatch, K.D. White, and C. Zuzak, 2022: Global and Regional Sea Level Rise Scenarios for the United States: Updated Mean Projections and Extreme Water Level Probabilities Along U.S. Coastlines. NOAA（美国国家海洋和大气管理局）Technical Report NOS 01. National Oceanic and Atmospheric Administration, National Ocean Service, Silver Spring, MD, 111 pp. https://oceanservice.noaa.gov/hazards/sealevelrise/noaa-nos-techrpt01-global-regional-SLR-scenarios-US.pdf
情景说明：针对5种全球平均海平面情景（以2100年的上升量（米）标识：0.3m、0.5m、1.0m、1.5m及2.0m），分别对应低、中等、高三种数值，分别对应17%、50%、83%百分位数。总计15种情景组合：0.3 - 中等、0.3 - 低、0.3 - 高、0.5 - 中等、0.5 - 低、0.5 - 高、1.0 - 中等、1.0 - 低、1.0 - 高、1.5 - 中等、1.5 - 低、1.5 - 高、2.0 - 中等、2.0 - 低、2.0 - 高。
覆盖年份总计15个：2005、2020、2030、2040、2050、2060、2070、2080、2090、2100、2110、2120、2130、2140及2150。
更多信息请访问：https://oceanservice.noaa.gov/hazards/sealevelrise/sealevelrise-tech-report.html