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Merge pull request #492 from NASA-IMPACT/nlcd-new
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acblackford authored Nov 25, 2024
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4 changes: 2 additions & 2 deletions datasets/aerosol-difference.data.mdx
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Expand Up @@ -35,8 +35,8 @@ layers:
- 0.1
nodata: 0
compare:
datasetId: houston-urbanization
layerId: houston-urbanization
datasetId: nlcd-annual-conus
layerId: nlcd-new-urbanization
mapLabel: |
::js ({dateFns, datetime, compareDatetime}) => {
return `${dateFns.format(datetime, 'LLL yyyy')} VS ${dateFns.format(compareDatetime, 'LLL yyyy')}`;
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97 changes: 0 additions & 97 deletions datasets/nlcd-urbanization.data.mdx

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284 changes: 284 additions & 0 deletions datasets/nlcd.data.mdx
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---
id: nlcd-annual-conus
name: 'National Land Cover Database LULC Classifications'
description: "National Land Cover Database Land Use - Land Cover classifications for CONUS, 2001-2021 at 30 m resolution."

media:
src: ::file ./nlcd-cover.png
alt: Boston, MA skyline.
author:
name: Eric Kilby
url: https://openverse.org/image/a9e174e6-d4e1-4377-81e2-6e71bf1a9602?q=skyline
taxonomy:
- name: Topics
values:
- Agriculture
- Biomass
- Environmental Justice
- Land Cover
- name: Source
values:
- MRLC
layers:
- id: nlcd-annual-conus
stacCol: nlcd-annual-conus
name: NLCD Land Use - Land Cover Classification
type: raster
description: "30 meter LULC classification provided by the NLCD."
initialDatetime: newest
zoomExtent:
- 0
- 20
sourceParams:
assets: landcover
bidx: [1]
nodata: 0
resampling: nearest
colormap_name: nlcd
legend:
type: categorical
min: "0"
max: "255"
stops:
- color: "#486DA2"
label: "Open Water"
- color: "#E7EFFC"
label: "Perennial Ice/Snow"
- color: "#E1CDCE"
label: "Developed, Open Space"
- color: "#DC9881"
label: "Developed, Low Intensity"
- color: "#F10100"
label: "Developed, Medium Intensity"
- color: "#AB0101"
label: "Developed High Intensity"
- color: "#B3AFA4"
label: "Barren Land (Rock/Sand/Clay)"
- color: "#6BA966"
# label: "Vegetation"
label: "Deciduous Forest"
- color: "#1D6533"
label: "Evergreen Forest"
- color: "#BDCC93"
label: "Mixed Forest"
- color: "#B29C46"
label: "Dwarf Scrub"
- color: "#D1BB82"
label: "Shrub/Scrub"
- color: "#EDECCD"
label : "Grassland/Herbaceous"
- color: "#D0D181"
label: "Sedge/Herbaceous"
- color: "#A4CC51"
label: "Lichens"
- color: "#82BA9D"
label: "Moss"
- color: "#DDD83E"
label: "Pasture/Hay"
- color: "#AE7229"
label: "Cultivated Crops"
# label: "Agriculture"
- color: "#BBD7ED"
label: "Woody Wetlands"
- color: "#71A4C1"
label: "Emergent Herbaceous Wetlands"
compare:
datasetId: nlcd-annual-conus
layerId: nlcd-annual-conus
mapLabel: |
::js ({ dateFns, datetime, compareDatetime }) => {
return `${dateFns.format(datetime, 'yyyy')} VS ${dateFns.format(compareDatetime, 'yyyy')}`;
}
info:
source: MRLC
spatialExtent: United States
temporalResolution: Bi- to Tri-Annual
unit: N/A

- id: nlcd-new-urbanization
stacCol: nlcd-new-urbanization
name: Urbanization
type: raster
description: "This is a binary dataset derived from the National Land Cover Database (NLCD) to illustrate new urbanization from 2001-2021, where 0 is no new urbanization and 1 is new urbanization."
initialDatetime: newest
zoomExtent:
- 0
- 20
sourceParams:
colormap_name: reds
nodata: 0
assets: landcover
rescale:
- 0
- 1
legend:
type: categorical
stops:
- color: "#d73027"
label: New Urbanization
info:
source: EROS
spatialExtent: CONUS
temporalResolution: 20 Year Difference
unit: Binary

---
<Block>
<Prose>
## Dataset Details
- **Temporal Extent:** 2001-2021
- **Temporal Resolution:** Inconsistent (every 2-3 years)
- **Spatial Extent:** CONUS
- **Spatial Resolution:** 30 m
- **Data Units:** N/A
- **Data Type:** Research
- **Data Latency:** N/A
</Prose>
<Figure>
<Map
datasetId='nlcd-annual-conus'
layerId='nlcd-annual-conus'
dateTime='2001-01-01'
zoom={8}
center={[-95.37,29.76]}
compareDateTime='2021-01-01'
/>
<Caption
attrAuthor='NASA'
attrUrl='https://nasa.gov/'
>
Comparison of the NLCD land cover classifications over Houston, TX between 2001 and 2021
</Caption>
</Figure>
</Block>

<Block>
<Prose>

### About

The National Land Cover Database (NLCD) stands as a paramount dataset offering an in-depth overview of the land cover characteristics in the United States. Spearheaded by the Earth Resources Observation and Science (EROS) Center, this database is renewed every two to three years to provide updated and accurate data for the nation.

This is a collective effort between the U.S. Geological Survey (USGS) and the Multi-Resolution Land Characteristics (MRLC) Consortium. The MRLC, composed of various federal agencies, has a rich legacy spanning over 30 years of generating consistent and pertinent land cover information on a national scale. The NLCD is a testament to their dedication and has emerged as one of the most frequently utilized geospatial datasets within the U.S., catering to an extensive audience ranging from scientists, land managers, city planners, to students.

As of its latest release, the NLCD showcases land cover data and related changes across nine specific epochs, starting from 2001 and culminating in 2021. These datasets are meticulously crafted, ensuring continuity and consistency with the past releases (from 2001-2019). This methodological consistency ensures that the datasets from the different epochs are directly comparable and well-suited for mult-temporal analyses.

</Prose>
</Block>

<Block>
<Figure>
<Map
datasetId='nlcd-new-urbanization'
layerId='nlcd-new-urbanization'
dateTime='2001-01-01'
zoom={8.65}
center={[-86.2,39.8]}
/>
<Caption
attrAuthor='NASA'
attrUrl='https://nasa.gov/'
>
Newly urbanized areas per NLCD classifications in the Indianapolis, IN metropolitan area between 2001 and 2021.
</Caption>
</Figure>

<Prose>

### What NLCD Offers

* Land Cover: This product details the land cover of the Conterminous U.S. at a 30-meter spatial resolution, employing a 16-class legend rooted in the modified Anderson Level II classification system.

* Land Cover Change Index: This visualization tool portrays the transformations that have transpired across all the NLCD epochs, furnishing users with a holistic view of the evolving landscape.

* Urban Imperviousness: A crucial dataset for urbanization studies, it highlights impervious surfaces in urban regions, showcasing them as a percentage of the developed surface at every 30-meter pixel.

* Urban Impervious Descriptor: A more nuanced product that classifies specific urban developments, such as roads, wind tower sites, building locations, and energy production sites. This aids in a more granular analysis of urban features.

</Prose>
</Block>

<Block>
<Prose>

### Access the Data

Visit the [Access Data](https://www.mrlc.gov/data) page to explore all of the options that NLCD offers.

</Prose>
</Block>

<Block>
<Prose>

### Citing this Dataset

U.S. Geological Survey (USGS) & Multi-Resolution Land Characteristics (MRLC) Consortium. (2021). National Land Cover Database (NLCD) 2021: Conterminous U.S. Land Cover. Earth Resources Observation and Science (EROS) Center. Retrieved from https://www.mrlc.gov/data

</Prose>
</Block>

<Block>
<Prose>

## Disclaimer

All data provided in VEDA has been transformed from the original format (TIFF) into Cloud Optimized GeoTIFFs ([COG](https://www.cogeo.org)). Careful quality checks are used to ensure data transformation has been performed correctly.

</Prose>
</Block>

<Block>
<Prose>

### Key Publications

Homer, C., Dewitz, J., Fry, J., Coan, M., Hossain, N., Larson, C., et al. (2007). Completion of the 2001 National Land Cover Database for the conterminous United States. Photogrammetric Engineering and Remote Sensing, 73(4), 337–341.

Homer, C., Fry, J. A., & Barnes, C. A. (2012). The national land cover database. US geological survey fact sheet, 3020(4), 1–4.

Homer, C., Dewitz, J., Yang, L., Jin, S., Danielson, P., Xian, G., et al. (2015). Completion of the 2011 national land cover database for the conterminous United States – Representing a decade of land cover change information. Photogrammetric Engineering and Remote Sensing, 81(5), 345–354. https://doi.org/10.14358/PERS.81.5.345

</Prose>
</Block>

<Block>
<Prose>

### Other Publications

Danielson, Patrick, Postma, Kory, Riegle, J., Dewitz, Jon A., Deep learning artificial intelligence (AI) for improving classification accuracy for the National Land Cover Database (NLCD) [abs.]

Jin, Suming, Dewitz, Jon A., Sorenson, D., Shogib, Rakibul , Granneman, Brian J., Case, Adam, Li, Congcong, Zhe, Z., Danielson, Patrick, Costello, C., Gass, L., National Land Cover Database 2019—A comprehensive strategy for creating the 1986-2019 Forest Disturbance Date Product [abs.], v. Proceedings, at https://agu.confex.com/agu/fm21/meetingapp.cgi/Paper/960755

Rigge, Matthew B., Homer, Collin G., Shi, Hua, Meyer, Debbie K., Bunde, Brett, Granneman, Brian, Postma, Kory, Danielson, Patrick, Case, Adam, Xian, George Z., Rangeland fractional components across the western United States from 1985 to 2018: Remote Sensing, v. 13, no. 4, at https://doi.org/10.3390/rs13040813

Wickham, J., Stehman, S.V., Sorenson, D.G., Gass, L., Dewitz, Jon A., Thematic accuracy assessment of the NLCD 2016 land cover for the conterminous United States: Remote Sensing of Environment, v. 257, at https://doi.org/10.1016/j.rse.2021.112357

</Prose>
</Block>

<Block>
<Prose>

## Data Stories Using This Dataset

**<Link to={"/stories/urban-heating"}>Implications for Heat Stress</Link>**

**<Link to={"/stories/houston-aod"}>Aerosols and Their Impacts on Houston, TX</Link>**

**<Link to={"/stories/burn-scar"}>Wildfires Affect Local Weather, Climate, and Hydrology</Link>**


</Prose>
</Block>

<Block>
<Prose>

## License

[Creative Commons Attribution 1.0 International](https://creativecommons.org/publicdomain/zero/1.0/legalcode) (CC BY 1.0)

</Prose>
</Block>
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