New Castle, New Hampshire (2016)
New Castle, New Hampshire (2016)
New Castle, New Hampshire (2016), SpatialCover Land Cover
New Castle, New Hampshire (2016)
New Castle, New Hampshire (2016)
New Castle, New Hampshire (2016)
New Castle, New Hampshire (2016), SpatialCover Land Cover
New Castle, New Hampshire (2016)

SpatialCover Land Cover New Hampshire

SpatialCover Land Cover New Hampshire is a high resolution (1 meter) land cover data product that provides baseline land cover information for the state of New Hampshire in multiple formats to support different land management applications. It is derived from 1 meter, 4 band color infrared imagery flown between July 3, 2016 and September 13, 2016 as part of the National Agriculture Imagery Program (NAIP). In addition LIDAR data flown between 2011 and 2015 was used to aid the classification process. Over 4 terabytes of LIDAR and aerial imagery were processed for the state through EarthDefine's high performance Geographic Object-Based Image Analysis (GEOBIA) processing platform to create the land cover layer.


Classes

Class NameValueClassification Description
Herbaceous1all surfaces with non-woody vegetation - lawns, cropland, grasses, etc.
Bare2non-vegetated non-impervious cover - snow, sand, barren farmland, rock, etc.
Impervious3impermeable built-up surfaces - roads and transportation infrastructure, sidewalks, buildings, parking lots, etc.
Water4open water - lakes, rivers, streams, sea, ponds, etc.
Trees5trees
Shrubs6low woody vegetation - early stage or stunted trees

What can you do with SpatialCover Land Cover?

The SpatialCover Land Cover New Hampshire dataset supports numerous applications for urban planning, forest inventory, stormwater management, environmental impact assessment and conservation.


Approach

EarthDefine used a Geographic Object-Based Image Analysis (GEOBIA) processing workflow to create the SpatialCover Land Cover New Hampshire dataset. Multiple ancillary datasets including transportation framework vectors, TIGER demographic data, hydrological, cadastral and terrain data were used along with color infrared aerial imagery to develop an object based classification workflow. LIDAR data was used to develop the tree class and derive buildings that were added to the impervious class. Over 61.7 million image-objects were created from over 9,285 square miles of 1 meter resolution source imagery and classified through the GEOBIA platform to create a 6-class classification with an overall accuracy of 98.4%.


Contact Us



Phone: 1.800.579.5916
Email: info@earthdefine.com
SpatialCover Land Cover New Hampshire Overview

Technical Specifications
Resolution1 meter
Minimum Mapping Unit0.005 acre1
Accuracy98.4%
Classes6
Area9,285 sq. miles
1. Minimum mapping unit for shrubs and water classes is 0.1 acres.