| snippet:
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Tree Canopy (2023) in Montgomery County, MD. |
| summary:
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Tree Canopy (2023) in Montgomery County, MD. |
| extent:
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[[-77.5268879914916,38.9346302491492],[-76.8886873907367,39.3535004287184]] |
| accessInformation:
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Research & Strategic Projects (RSP), Montgomery County Planning Department, MNCPPC
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| thumbnail:
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thumbnail/thumbnail.png |
| maxScale:
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1.7976931348623157E308 |
| typeKeywords:
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["ArcGIS","ArcGIS Server","Data","Map Service","Service"] |
| description:
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Tree Canopy is defined as vegetation 8 feet tall or higher. Montgomery Planning regularly purchases LiDAR data to support various products, and the interactive tool you will see below is is one such product. Four band infrared imagery is combined with LiDAR to extract our tree canopy layers.
The 2009, 2014, and 2018 tree canopy layers used the "QL2" LiDAR standard, which captures only 4 samples per square meter. Starting with the department’s 2020 tree canopy layers, a higher quality LiDAR standard called "QL1" was used. This new technology captures 8 samples per square meter.
The new QL1 technology is better able to capture smaller saplings that the QL2 technology could have have missed. QL1 also has the ability to better detect the fringes of tree canopy. Because of the higher resolution of QL1, the overall tree canopy capture for any given area is higher than it would be if it were measured by the older QL2 today. <div><br /></div><div>For more information, contact: GIS Manager Research & Strategic Projects (RSP) Montgomery County Planning Department, MNCPPC T: 301-650-5620</div> |
| licenseInfo:
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You can copy, modify, distribute, and perform analysis on the data, even for commercial purposes, all without asking permission, but please provide attribution to the Montgomery County Planning Department. The Planning Department makes no warranties about the data, and disclaims liability for all uses of the data, to the fullest extent permitted by applicable law.
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| catalogPath:
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| title:
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tree_canopy_2023 |
| type:
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Map Service |
| url:
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|
| tags:
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["Environment","Tree Canopy","Montgomery County Planning Department","Montgomery County","MNCPPC","Maryland"] |
| culture:
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en-US |
| portalUrl:
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| name:
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tree_canopy_2023 |
| guid:
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6B93ECE7-AC10-4624-B7C5-95B76C87CF92 |
| minScale:
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0 |
| spatialReference:
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WGS_1984_Web_Mercator_Auxiliary_Sphere |