2021 C-CAP High Resolution Land Cover for the Northeast Region of Ohio

The NOAA Coastal Change Analysis Program (C-CAP) produces national standardized land cover and change products for the coastal regions of the U.S. C-CAP products inventory coastal intertidal areas, wetlands, and adjacent uplands with the goal of monitoring changes in these habitats through time. High resolution C-CAP products are developed utilizing high resolution aerial imagery, along with lidar and various available ancillary information, and can be used to track changes in the landscape through time. This is a full-scheme C-CAP land cover product, which includes up to 20 land cover classes, including impervious surfaces, agricultural areas, tree/shrub canopy, water, and wetlands. These high-resolution C-CAP land cover products enable local mapping and analyses for several applications, including water quality and stormwater management, land use planning and community development, risk assessment, natural resource management, and other community-level activities. This dataset represents land cover for the timeframe of 2021 for the Northeast Region of Ohio.

C-CAP is dedicated to the development, distribution, and application of land cover and change data for the coastal regions of the U.S.

C-CAP data sets are not jurisdictional or intended for use in litigation. While efforts have been made to ensure that these data are accurate and reliable within the limits of current technology, NOAA cannot assume liability for any damages or misrepresentations caused by inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. This is a national and regional data set that should be used only as a screening tool for very local or site-specific management decisions. Small features and changes should be verified with a higher-resolution data source.

USE RESTRICTIONS: Users are granted a perpetual, non-exclusive, irrevocable, worldwide license to use these data, and to create derived and value-added products, in any manor and for any purpose with the exception of creating, training, improving, modifying, validating, testing, evaluating, or otherwise leveraging machine learning algorithms in order to explicitly create similar land cover data for a period of five years from its date of creation.

Attributes for this product are as follows:

0 Background,

1 Unclassified (Cloud, Shadow, etc),

2 Developed Impervious,

3

4 Developed Impervious under Tree Canopy

5 Developed Open Space,

6 Cultivated Land,

7 Pasture/Hay,

8 Grassland,

9

10

11 Upland Tree (Forest),

12 Scrub/Shrub,

13 Palustrine Forested Wetland,

14 Palustrine Scrub/Shrub Wetland,

15 Palustrine Emergent Wetland,

16 Estuarine Forested Wetland,

17 Estuarine Scrub/Shrub Wetland,

18 Estuarine Emergent Wetland,

19 Unconsolidated Shore,

20 Bare Land,

21 Open Water,

22 Palustrine Aquatic Bed,

23 Estuarine Aquatic Bed,

Recommended Citation. NOAA Coastal Change Analysis Program (C-CAP) Houston Region High Resolution Land Cover Data. Data collected 2020. Charleston, SC: National Oceanic and Atmospheric Administration (NOAA) Office for Coastal Management. Data accessed at https://coast.noaa.gov/digitalcoast/data/ccaphighres.html.

5 years

Users are granted a perpetual, non-exclusive, irrevocable, worldwide license to use these data, and to create derived and value-added products, in any manor and for any purpose with the exception of creating, training, improving, modifying, validating, testing, evaluating, or otherwise leveraging machine learning algorithms in order to explicitly create similar land cover data for a period of five years from its date of creation.

C-CAP data sets are not jurisdictional or intended for use in litigation. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

None

Users are granted a perpetual, non-exclusive, irrevocable, worldwide license to use these data, and to create derived and value-added products, in any manor and for any purpose with the exception of creating, training, improving, modifying, validating, testing, evaluating, or otherwise leveraging machine learning algorithms in order to explicitly create similar land cover data for a period of five years from its date of creation.

C-CAP data sets are not jurisdictional or intended for use in litigation. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

According to the accuracy assessment performed by NOAA Office for Coastal Management staff, the overall accuracy of this product is 92.3%. There were 585 total points distributed across the study area. The accuracy of each class is as follows (Producer's, User's accuracies):

Impervious (100%, 98.3%)

Impervious under Tree Canopy (100%, 86.7%)

Open Space Developed (93.3%, 93.3%)

Cultivated (93.8%, 100%)

Pasture/Hay (94.8%, 91.7%)

Grassland (92.0%, 76.7%)

Upland Tree (Forest) (96.4%, 85.0%)

Shrub/Scrub (90.0%, 84.4%)

Palustrine Forested Wetland (83.8%, 95.0%)

Palustrine Shrub/Scrub Wetland (89.5%, 89.5%)

Palustrine Emergent Wetland (75.0%, 100%)

Unconsolidated Shore (100%, 100%)

Bare Land (100%, 100%)

Water (100%, 100%)

Palustrine Aquatic Bed (100%, 100%)

Overall accuracy (92.3%)

Points were sampled using a stratified random sampling scheme, with a minimum target sample of 25 points per class. A few of the rarer categories did not meet this minimum threshold due to the relatively low total area of those classes. The following categories had fewer than the target 25 point minimum: Impervious Under Canopy (class 4), Palustrine Scrub/Shrub (class 14), Palustrine Emergent Wetland (class 15), Bare Land (class 20), and Palustrine Aquatic Bed (class 22). The correct land cover classification was determined through analyst interpretation of the imagery used in creating the map, as well as possible references to GoogleEarth in order to reference additional dates/seasons of imagery for that location. All points were interpreted by two analysts, plus a third who made a final determination when there was disagreement on the call. This analysis allowed for the use of fuzzy designations, or alternate calls to the truth category where that truth call may not have been completely obvious, or where point locations are located so they could possibly be more than one category.

Data does not exist for all standard C-CAP categories.

There are no pixels representing: Unclassified (class 1), Estuarine Forested Wetlands (class 16), Estuarine Scrub/Shrub Wetlands (class 17), Estuarine Emergent Wetlands (class 18), or Perennial Ice/Snow (class 25).

Tests for logical consistency indicate that all row and column positions in the selected latitude/longitude window contain data. Conversion and integration with vector files indicates that all positions are consistent with earth coordinates covering the same area. Attribute files are logically consistent.