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Data set of Flow Resistance Measurements of Vegetation

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Metadata Last Checked: August 02, 2025 | Last Modified: 2018-09-28 00:00:00
This data set reports measurements of the drag coefficient and geometric parameters of different types of vegetation. The vegetation chosen for this work was a Bakers Blue Spruce (Picea pungens `Bakeri'), an Evergreen Distylium (Distylium `PIIDIST-I'), a Gold Rider Leyland Cypress (Cupressocyparis leylandii `Gold Rider'), a Kimberly Queen Fern (Nephrolepis obliterata `Kimberly Queen'), a Blue Shag Eastern White Pine (Pinus strobus `Blue Shag'), and a Robin Red Holly (Ilex opaca). Each sample was chosen based on its local availability. Wind resistance measurements are made in a wind tunnel with a 2.0 m test section and 0.5 m by 0.5 m cross-section. The drag coefficient is inferred via measurement of the pressure drop across the sample at wind speeds ranging from 2 m/s to 8 m/s. The data set also reports the white fraction, the absorption coefficient (Kappa,) and the solid fraction of each vegetation sample. The white fraction and absorption coefficients were determined via photography. The solid fractions were determined from water displacement testing. A detailed description of this work can be found in Ref. [1]. [1] R. Falkenstein-Smith, K. McGrattan, B. Toman, and M. Fernandez. Measurement of the Flow Resistance of Vegetation. Technical report, National Institute of Standards and Technology, April 2019.

Resources

15 resources available

  • DOI Access for Data set of Flow Resistance Measurements of Vegetation

    FILE
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  • Bakers Blue Spruce

    CSV FILE
    Download

  • Blue Shag Eastern White Pine Data

    CSV FILE
    Download

  • Gold Rider Leyland Cypress

    CSV FILE
    Download

  • Kimberly Queen Fern

    CSV FILE
    Download

  • Robin Red Holly

    CSV FILE
    Download

  • SHA256 File for Bakers Blue Spruce

    TEXT/PLAIN
    Download

  • SHA256 File for Blue Shag Eastern White Pine Data

    TEXT/PLAIN
    Download

  • Resource 9

    APPLICATION/VND.MS-EXCEL
    Download

  • Resource 10

    TEXT/PLAIN
    Download

  • SHA256 File for Gold Rider Leyland Cypress

    TEXT/PLAIN
    Download

  • SHA256 File for Kimberly Queen Fern

    TEXT/PLAIN
    Download

  • SHA256 File for Robin Red Holly

    TEXT/PLAIN
    Download

  • Resource 14

    APPLICATION/VND.OPENXMLFORMATS-OFFICEDOCUMENT.SPREADSHEETML.SHEET
    Download

  • Resource 15

    TEXT/PLAIN
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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
                                            [
  "006:55"
]
contactPoint 
                                            {
  "fn": "Ryan Falkenstein-Smith",
  "hasEmail": "mailto:ryan.falkenstein-smith@nist.gov"
}
description This data set reports measurements of the drag coefficient and geometric parameters of different types of vegetation. The vegetation chosen for this work was a Bakers Blue Spruce (Picea pungens `Bakeri'), an Evergreen Distylium (Distylium `PIIDIST-I'), a Gold Rider Leyland Cypress (Cupressocyparis leylandii `Gold Rider'), a Kimberly Queen Fern (Nephrolepis obliterata `Kimberly Queen'), a Blue Shag Eastern White Pine (Pinus strobus `Blue Shag'), and a Robin Red Holly (Ilex opaca). Each sample was chosen based on its local availability. Wind resistance measurements are made in a wind tunnel with a 2.0 m test section and 0.5 m by 0.5 m cross-section. The drag coefficient is inferred via measurement of the pressure drop across the sample at wind speeds ranging from 2 m/s to 8 m/s. The data set also reports the white fraction, the absorption coefficient (Kappa,) and the solid fraction of each vegetation sample. The white fraction and absorption coefficients were determined via photography. The solid fractions were determined from water displacement testing. A detailed description of this work can be found in Ref. [1]. [1] R. Falkenstein-Smith, K. McGrattan, B. Toman, and M. Fernandez. Measurement of the Flow Resistance of Vegetation. Technical report, National Institute of Standards and Technology, April 2019.
distribution 
                                            [
  {
    "title": "DOI Access for Data set of Flow Resistance Measurements of Vegetation",
    "accessURL": "https://doi.org/10.18434/M31986"
  },
  {
    "title": "Bakers Blue Spruce",
    "format": "CSV File",
    "mediaType": "application/vnd.ms-excel",
    "description": "Drag, White Fraction, Absorption Coefficient, Solid Fraction Data for Bakers Blue Spruce. Uncertainties are also included in this data.",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Bakers%20Blue%20Spruce.csv"
  },
  {
    "title": "Blue Shag Eastern White Pine Data",
    "format": "CSV File",
    "mediaType": "application/vnd.ms-excel",
    "description": "Drag, White Fraction, Absorption Coefficient, and Solid Fraction Data for Blue Shag Eastern White Pine. Uncertainties are also included in this data.",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Blue%20Shag%20Eastern%20White%20Pine.csv"
  },
  {
    "title": "Gold Rider Leyland Cypress",
    "format": "CSV File",
    "mediaType": "application/vnd.ms-excel",
    "description": "Drag, White Fraction, Kappa, and Solid Fraction Data for Gold Rider Leyland Cypress. Uncertainties for this data are also included.",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Gold%20Rider%20Leyland%20Cypress.csv"
  },
  {
    "title": "Kimberly Queen Fern",
    "format": "CSV File",
    "mediaType": "application/vnd.ms-excel",
    "description": "Drag, White Fraction, Kappa, and Solid Fraction Data for Kimberly Queen Fern. Uncertainties for this data are also included.",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Kimberly%20Queen%20Fern.csv"
  },
  {
    "title": "Robin Red Holly",
    "format": "CSV File",
    "mediaType": "application/vnd.ms-excel",
    "description": "Drag, White Fraction, Kappa, and Solid Fraction Data for the Robin Red Holly. Uncertainties for this data are also included in this file.",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Robin%20Red%20Holly.csv"
  },
  {
    "title": "SHA256 File for Bakers Blue Spruce",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Bakers%20Blue%20Spruce.csv.sha256"
  },
  {
    "title": "SHA256 File for Blue Shag Eastern White Pine Data",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Blue%20Shag%20Eastern%20White%20Pine.csv.sha256"
  },
  {
    "mediaType": "application/vnd.ms-excel",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Evergreen%20Distylium.csv"
  },
  {
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Evergreen%20Distylium.csv.sha256"
  },
  {
    "title": "SHA256 File for Gold Rider Leyland Cypress",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Gold%20Rider%20Leyland%20Cypress.csv.sha256"
  },
  {
    "title": "SHA256 File for Kimberly Queen Fern",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Kimberly%20Queen%20Fern.csv.sha256"
  },
  {
    "title": "SHA256 File for Robin Red Holly",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Robin%20Red%20Holly.csv.sha256"
  },
  {
    "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Summary_Table.xlsx"
  },
  {
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/7A924A67E9460B0FE0532457068144CD1986/Summary_Table.xlsx.sha256"
  }
]
identifier 7A924A67E9460B0FE0532457068144CD1986
issued 2019-09-23
keyword 
                                            [
  "Vegetation Canopy; Drag Coefficient; Wind Resistance"
]
landingPage https://data.nist.gov/od/id/7A924A67E9460B0FE0532457068144CD1986
language 
                                            [
  "en"
]
license https://www.nist.gov/open/license
modified 2018-09-28 00:00:00
programCode 
                                            [
  "006:045"
]
publisher 
                                            {
  "name": "National Institute of Standards and Technology",
  "@type": "org:Organization"
}
references 
                                            [
  "https://doi.org/10.6028/NIST.TN.2039"
]
theme 
                                            [
  "Fire:Wildland urban interface fire"
]
title Data set of Flow Resistance Measurements of Vegetation

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