Land Cover

1-meter resolution land cover classification

Description

This layer provides automatically-derived land cover classifications of the Puget Sound trough below 1,500 meters elevation. A six-class 1-meter land cover layer was developed using the Naïve Bayes classifier (Google, 2019) and trained using a 10-meter land cover product from NOAA Coastal Change Analysis Program (C-CAP) (NOAA C-CAP, 2018a). Other data combined with this analysis includes water body and river polygons (Washington Department of Natural Resources), shoreline polygons (Esri), over-water structure polygons (Washington Department of Natural Resources), road polygons buffered from centerlines (U.S. Census Bureau, 2016), and building rooftops polygons (Microsoft, 2019). Accuracy was validated accuracy with an observed land cover point dataset from the Washington Department of Fish & Wildlife (Pierce, Jr., 2015).

Layer Access in Earth Engine

The javascript commands below can be used to access this layer within the Google Earth Engine Code Editor. A Google Earth Engine account is required.

// Import the layer data dictionary
var data = require('users/stormwaterheatmap/apps:data/public')

// To view data dictionary, print to the console:
print('Data:', data)

//Get this layer from the layer data dictionary: 
var layer_name = data.rasters["Land Cover"]

Viewing

Individual objects contain all the info used in the stormwater heatmap. To add it to the map, add the layer object.

var display_image = layer_name.layer
Map.addLayer(display_image)

Analysis

To get the raw image data for analysis, access the eeObject key.

var raw_image = layer_name.layer.eeObject
Map.addLayer(raw_image,{},'Land Cover')

Visualization

Palette

Label	Raster value	Colors
No data	0	`#ffffff`
Grass/Low Vegetation	1	`#3ead63`
Shrub/Medium Vegetation	2	`#96ca6e`
Trees/Forest	3	`#26532b`
Bare soil	4	`#a39171`
Water	5	`#476b9d`
Impervious	6	`#adacb5`
Impervious - Roofs	7	`#d8d5db`

Source

The Nature Conservancy

land_cover