The 2014 update of the U.S. Geological Survey (USGS) National Seismic Hazard Model (NSHM) for the conterminous United States (2014 NSHM; Petersen and others, 2014; https://pubs.usgs.gov/of/2008/1128/) included probabilistic ground motion maps for 2 percent and 10 percent probabilities of exceedance in 50 years, derived from seismic hazard curves for peak ground acceleration (PGA) and 0.2 and 1.0 second spectral accelerations (SAs) with 5 percent damping for the National Earthquake Hazards Reduction Program (NEHRP) site class boundary B/C (time-averaged shear wave velocity in the upper 30 meters [VS30]=760 meters per second [m/s]). This data release provides 0.1 degree by 0.1 degree gridded seismic hazard curves, 0.1 degree by 0.1 degree gridded probabilistic ground motions, and seismic hazard maps calculated for additional periods and additional uniform NEHRP site classes using the 2014 NSHM. For both the central and eastern U.S. (CEUS) and western U.S. (WUS), data and maps are provided for PGA, 0.1, 0.2, 0.3, 0.5, 1.0, and 2.0 second SAs with 5% damping for the NEHRP site class boundary B/C for 2, 5, and 10% probabilities of exceedance in 50 years. The WUS additionally includes data and maps for 0.75, 3.0, 4.0, and 5.0 SAs. The use of region-specific suites of weighted ground motion models (GMMs) in the 2014 NSHM precluded the calculation of ground motions for a uniform set of periods and site classes for the conterminous U.S. At the time of development of the 2014 NSHM, there was no consensus in the CEUS on an appropriate site-amplification model to use, therefore, we calculated hazard curves and maps for NEHRP Site Class A (VS30 = 2000 m/s), for which most stable continental GMMs were original developed, based on simulations for hard rock conditions. In the WUS, however, the GMMs allow amplification based on site class (defined by VS30), so we calculated hazard curves and maps for NEHRP site classes B (VS30 = 1080 m/s), C (VS30 = 530 m/s), D (VS30 = 260 m/s), and E (VS30 = 150 m/s) and site class boundaries A/B (VS30 = 1500 m/s), B/C (VS30 = 760 m/s), C/D (VS30 = 365 m/s), and D/E (VS30 = 185 m/s). Further explanation about how the data and maps were generated can be found in the accompanying U.S. Geological Survey Open-File Report 2018-1111 (https://doi.org/10.3133/ofr20181111). First Posted - July 18, 2018 Revised - February 20, 2019 (ver. 1.1)

According to a survey conducted in 2023, ** percent of K-12 teachers at public schools in the United States said that they had decided on their own, without being directed by school or district leaders, to limit discussions about political and social issues in class. In comparison, only ** percent said that they had not decided to limit discussing political and social issues in class.

European Health Survey: Type of problem that limits the activities of daily living by sex and social class based on the reference person's occupation. Population aged 15 years old and over that had limitations on activities of daily living in the last 6 months. National.

This dataset tracks annual total classroom teachers amount from 2019 to 2023 for Learning Without Limits

This layer shows workers by employer type (private sector, government, etc.) in Austin, Texas. This is shown by censustract and place boundaries. Tract data contains the most currently released American Community Survey (ACS) 5-year data for all tracts within Bastrop, Caldwell, Hays, Travis, and Williamson Counties in Texas. Place data contains the most recent ACS 1-year estimate for the City of Austin, Texas. Data contains estimates and margins of error. There are also additional calculated attributes related to this topic, which can be mapped or used within analysis.To see the full list of attributes available in this service, go to the "Data" tab, and choose "Fields" at the top right. Current Vintage: 2019-2023 (Tract), 2023 (Place)ACS Table(s): C24060 Data downloaded from: Census Bureau's API for American Community Survey Date of API call: February 12, 2025National Figures: data.census.govThe United States Census Bureau's American Community Survey (ACS):About the SurveyGeography & ACSTechnical DocumentationNews & UpdatesThis ready-to-use layer can be used within ArcGIS Pro, ArcGIS Online, its configurable apps, dashboards, Story Maps, custom apps, and mobile apps. Data can also be exported for offline workflows. For more information about ACS layers, visit the FAQ. Please cite the Census and ACS when using this data.Data Note from the Census:Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate arising from sampling variability is represented through the use of a margin of error. The value shown here is the 90 percent margin of error. The margin of error can be interpreted as providing a 90 percent probability that the interval defined by the estimate minus the margin of error and the estimate plus the margin of error (the lower and upper confidence bounds) contains the true value. In addition to sampling variability, the ACS estimates are subject to nonsampling error (for a discussion of nonsampling variability, see Accuracy of the Data). The effect of nonsampling error is not represented in these tables.Data Processing Notes:This layer is updated automatically when the most current vintage of ACS data is released each year, usually in December. The layer always contains the latest available ACS 5-year estimates. It is updated annually within days of the Census Bureau's release schedule. Click here to learn more about ACS data releases.Boundaries come from the US Census TIGER geodatabases, specifically, the National Sub-State Geography Database (named tlgdb_(year)_a_us_substategeo.gdb). Boundaries are updated at the same time as the data updates (annually), and the boundary vintage appropriately matches the data vintage as specified by the Census. These are Census boundaries with water and/or coastlines erased for cartographic and mapping purposes. For census tracts, the water cutouts are derived from a subset of the 2020 Areal Hydrography boundaries offered by TIGER. Water bodies and rivers which are 50 million square meters or larger (mid to large sized water bodies) are erased from the tract level boundaries, as well as additional important features. For state and county boundaries, the water and coastlines are derived from the coastlines of the 2020 500k TIGER Cartographic Boundary Shapefiles. These are erased to more accurately portray the coastlines and Great Lakes. The original AWATER and ALAND fields are still available as attributes within the data table (units are square meters). The States layer contains 52 records - all US states, Washington D.C., and Puerto RicoCensus tracts with no population that occur in areas of water, such as oceans, are removed from this data service (Census Tracts beginning with 99).Percentages and derived counts, and associated margins of error, are calculated values (that can be identified by the "_calc_" stub in the field name), and abide by the specifications defined by the American Community Survey.Field alias names were created based on the Table Shells file available from the American Community Survey Summary File Documentation page.Negative values (e.g., -4444...) have been set to null, with the exception of -5555... which has been set to zero. These negative values exist in the raw API data to indicate the following situations:The margin of error column indicates that either no sample observations or too few sample observations were available to compute a standard error and thus the margin of error. A statistical test is not appropriate.Either no sample observations or too few sample observations were available to compute an estimate, or a ratio of medians cannot be calculated because one or both of the median estimates falls in the lowest interval or upper interval of an open-ended distribution.The median falls in the lowest interval of an open-ended distribution, or in the upper interval of an open-ended distribution. A statistical test is not appropriate.The estimate is controlled. A statistical test for sampling variability is not appropriate.The data for this geographic area cannot be displayed because the number of sample cases is too small.

Class I and II surface water classification boundaries. The Clean Water Act requires that the surface waters of each state be classified according to designated uses. Florida has six classes with associated designated uses, which are arranged in order of degree of protection required: Class I - Potable Water Supplies Fourteen general areas throughout the state including: impoundments and associated tributaries, certain lakes, rivers, or portions of rivers, used as a drinking water supply. Class II - Shellfish Propagation or Harvesting Generally coastal waters where shellfish harvesting occurs. For a more detailed description of classes and specific waterbody designations, see 62-302.400.

European Health Survey: Limitations for daily activities in the last 6 months by sex and social class based on reference person's occupation. Population aged 15 years old and over. National.

Firm age class limits.

It represents the municipal boundary as linear geometry. This class is always linked to one (in case it is a state limit) or two municipalities through a role. In this way it is possible to represent the municipal linear border between two municipalities with a single shared line. This solution allows effective management of changes to municipal boundaries as all operations can be performed on linear components while the area components can be obtained by automatic derivation.

Information on volume and value of fish landings in Canada are collected by both federal and provincial agencies. Information contained in this section covers volume and value of landings in sea fisheries by species-groups, by main species, by province and, for Atlantic Canada by DFO regions.

Table of INEBase Type of problem that limits the activities of daily living by sex and social class based on the reference person's occupation. Population aged 15 years old and over that had limitations on activities of daily living in the last 6 months. National. European Health Survey

Sept 5, 2018This layer was edited to reflect some Reorganizations. See Changes Feature Class for details.=================================================May 1, 2018This layer was edited to reflect some Reorganizations. See Changes Feature Class for details.=================================================April 9, 2018This layer was edited to reflect a Reorganization. See Changes Feature Class for details.=================================================February 2, 2018This layer was edited to reflect a Reorganization. See Changes Feature Class for details.=================================================December 15 2017This layer was edited to reflect a Correction. See Changes Feature Class for details.=================================================December 15 2017The update metadata is now being placed in this Description field so it is more compatible with ArcGIS Pro, and easier to update.=================================================November 17, 2017This layer was edited to reflect a Correction. See Changes Feature Class for details.==================================================October 30, 2017This layer was edited to reflect some Adjustments. See Changes Feature Class for details.==================================================September 27, 2017This layer was edited to reflect several Reorganizations. See Changes Feature Class for details.==================================================August 18, 2017This layer was edited to reflect a Correction. See Changes Feature Class for details.==================================================June 30, 2017This layer was edited to reflect an Annexation and a Reorganization. See Changes Feature Class for details.==================================================June 12-14, 2017This layer was edited to reflect several Corrections. See Changes Feature Class for details.==================================================April 25, 2017This layer was edited to reflect a Correction. See Changes Feature Class for details.==================================================March 16, 2017This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================February 6, 2017This layer was edited to reflect some corrections. See Changes Feature Class for details.==================================================January 19, 2017This layer was edited to reflect a correction. See Changes Feature Class for details.==================================================November 18, 2016This layer was edited to reflect a reorganization. See Changes Feature Class for details.==================================================October 3, 2016This layer was edited to reflect a correction. See Changes Feature Class for details.==================================================September 12, 2016This layer was edited to reflect a reorganization and an annexation. See Changes Feature Class for details.==================================================May 17, 2016This layer was edited to reflect a reorganization. See Changes Feature Class for details.==================================================April 4, 2016This layer was edited to reflect a reorganization. See Changes Feature Class for details.==================================================March 18, 2016This layer was edited to reflect a reorganization. See Changes Feature Class for details.==================================================January 29, 2016This layer was edited to reflect a reorganization. See Changes Feature Class for details.==================================================January 26, 2016This layer was edited to reflect a reorganization. See Changes Feature Class for details.==================================================December 11, 2015This layer was edited to reflect a Correction-Annexation and an Adjustment. See Changes Feature Class for details.==================================================November 13, 2015This layer was edited to reflect a reorganization. See Changes Feature Class for details.==================================================September 22, 2015This layer was edited to reflect an adjustment. See Changes Feature Class for details.==================================================September 10, 2015This layer was edited to reflect a Reorganization and USA Amendment. See Changes Feature Class for details.==================================================June 12, 2015This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================April 2, 2015This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================March 19, 2015This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================February 19, 2015This layer was edited to reflect a Correction. See Changes Feature Class for details.==================================================January 9, 2015This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================December 30, 2014This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================December 12, 2014This layer was edited to reflect a Correction. See Changes Feature Class for details.==================================================October 7, 2014This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================Aug 26-29, 2014This layer was edited to reflect some Corrections. See Changes Feature Class for details.==================================================July 7, 2014This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================June 30, 2014This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================June 12, 2014This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================May 23, 2014This layer was edited to reflect a Correction. See Changes Feature Class for details.==================================================May 9, 2014This layer was edited to reflect a Reorganization and some Annexations. See Changes Feature Class for details.==================================================March 4, 2014This layer was edited to reflect a Reorganization. See Changes Feature Class for details.==================================================February 24, 2014This layer was edited to reflect some Reorganizations. See Changes Feature Class for details.==================================================November 1, 2013This layer was edited to reflect some Reorganizations. See Changes Feature Class for details.==================================================October 7-8, 2013This layer was edited to reflect some changes. See Changes Feature Class for details.==================================================July 15, 2013This layer was edited to reflect an Annexation. See Changes Feature Class for details.==================================================April 29, 2013This layer was edited to reflect several Changes. See Changes Feature Class for details.===================================================March 26-27, 2013This layer was edited to reflect a Correction. See Changes Feature Class for details.===================================================January 17, 2013This layer was edited to reflect a Reorganization. See Changes Feature Class for details.===================================================January 11, 2013This layer was edited to reflect a Correction. See Changes Feature Class for details.===================================================January 8, 2013This layer was edited to reflect some Annexations. See Changes Feature Class for details.===================================================December 18, 2012This layer was edited to reflect an Annexation. See Changes Feature Class for details.===================================================December 3, 2012This layer was edited to reflect an Annexation. See Changes Feature Class for details.===================================================October 30, 2012This layer was edited to reflect a Reorganization. See Changes Feature Class for details.===================================================October 3, 2012This layer was edited to reflect a Reorganization. See Changes Feature Class for details.===================================================September 26-27, 2012This layer was edited to reflect some Corrections. See Changes Feature Class for details.===================================================August 24, 2012This layer was edited to reflect an Annexation and Reorganization. See Changes Feature Class for details.===================================================June 15, 2012This layer was edited to reflect a Reorganization. See Changes Feature Class for details.===================================================March 15, 2012This layer was edited to reflect a Reorganization. See Changes Feature Class for details.===================================================Feb 22, 2012This layer was edited to reflect some Corrections. See Changes Feature Class for details.===================================================Jan 17-18, 2012This layer was edited to reflect some Changes. See Changes Feature Class for details.===================================================Oct 26, 2011This layer was edited to reflect a Reorganization. See Changes Feature Class for details.===================================================Oct 20, 2011This layer was edited to reflect some Corrections. See Changes Feature Class for details.===================================================Oct 14, 2011This

description: Cities, Towns and Villages dataset current as of 2010. City Limits feature class located within the boundary data geodatabase.; abstract: Cities, Towns and Villages dataset current as of 2010. City Limits feature class located within the boundary data geodatabase.

Financial ratios of farms, by revenue class and quartile boundary, incorporated and unincorporated sectors, Canada. Data are available on an annual basis.

Class I and II surface water classification. The Clean Water Act requires that the surface waters of each state be classified according to designated uses. Florida has six classes with associated designated uses, which are arranged in order of degree of protection required: Class I - Potable Water Supplies Fourteen general areas throughout the state including: impoundments and associated tributaries, certain lakes, rivers, or portions of rivers, used as a drinking water supply. Class II - Shellfish Propagation or Harvesting Generally coastal waters where shellfish harvesting occurs. For a more detailed description of classes and specific waterbody designations, see 62-302.400.

Represents the municipal limit as a linear geometry. This class is always tied to one (in case it's a state limit) or two municipalities through a role. In this way it is possible to represent the linear municipal boundary between two municipalities with a single shared line. This solution allows effective management of changes to municipal boundaries since all operations can be performed on the linear components while the areal components can be obtained by automatic derivation.

The number of cross-boundary students (CBS) using various land-based boundary control points, with a breakdown by class level

The class of objects “LOCALITY” type polygon contains the limits of the intravilane. The class of objects is part of Romania’s topographical plan (TOPRO5) corresponding to scale 1:5000.