LANDFIRE (LF), Alat Perencanaan Pengelolaan Sumber Daya dan Kebakaran Lanskap, adalah program bersama antara program pengelolaan kebakaran hutan dari Forest Service, Departemen Pertanian Amerika Serikat, Geological Survey, Departemen Dalam Negeri Amerika Serikat, dan The Nature Conservancy.
Lapisan LANDFIRE (LF) dibuat menggunakan model lanskap prediktif berdasarkan data yang dirujuk di lapangan yang ekstensif, citra satelit, dan lapisan gradien biofisik menggunakan pohon klasifikasi dan regresi.
Tinggi Vegetasi yang Ada (EVH) menunjukkan tinggi rata-rata vegetasi dominan untuk sel 30 m.
Ketinggian tajuk dihasilkan secara terpisah untuk pohon, semak, dan tumbuhan herba menggunakan data pelatihan dan lapisan geospasial lainnya. EVH ditentukan oleh tinggi rata-rata yang diberi bobot berdasarkan tutupan spesies dan berdasarkan bentuk kehidupan Jenis Vegetasi yang Ada (EVT).
Model pohon keputusan yang menggunakan data referensi kolom, lidar, Landsat, dan data tambahan dikembangkan secara terpisah untuk setiap bentuk kehidupan. Hubungan pohon keputusan digunakan untuk menghasilkan lapisan class tinggi khusus bentuk kehidupan, yang digabungkan menjadi satu lapisan EVH komposit.
Data gangguan digunakan untuk mengembangkan produk Pemetaan Ulang LF untuk pemfilteran plot LFRDB dan untuk memastikan gangguan tahun 2015 dan 2016 yang tidak terlihat dalam gambar sumber disertakan.
Produk EVC kemudian disesuaikan melalui langkah-langkah QA/QC untuk memastikan bentuk kehidupan disinkronkan dengan produk Existing Vegetation Cover dan EVT.
LF menggunakan EVH di beberapa lapisan berikutnya, termasuk pengembangan produk bahan bakar.
Dataset Vegetasi LANDIFRE mencakup:
Setelan Biofisik (BPS)
Potensi Lokasi Lingkungan (ESP)
Tutupan Kanopi Vegetasi yang Ada (EVC)
Tinggi Vegetasi yang Ada (EVH).
Jenis Vegetasi yang Ada (EVT)
Lapisan ini dibuat menggunakan model lanskap prediktif berdasarkan data yang dirujuk di lapangan secara ekstensif, citra satelit, dan lapisan gradien biofisik menggunakan pohon klasifikasi dan regresi.
Band
Ukuran Piksel 30 meter
Band
Nama
Ukuran Piksel
Deskripsi
EVH
meter
Tinggi Vegetasi yang Ada
Properti Gambar
Properti Gambar
Nama
Jenis
Deskripsi
EVH_classes
DOUBLE
Nilai kelas Ketinggian Vegetasi yang Ada.
EVH_names
STRING
Nama deskriptif Ketinggian Vegetasi yang Ada.
Persyaratan Penggunaan
Persyaratan Penggunaan
Data LANDFIRE adalah data domain publik tanpa batasan penggunaan, meskipun jika modifikasi atau turunan produk dibuat, harap tambahkan beberapa pengubah deskriptif ke set data untuk menghindari kebingungan.
Kutipan
Kutipan:
Cara yang disarankan untuk mengutip produk LANDFIRE khusus untuk setiap produk,
sehingga model kutipan disediakan, dengan contoh untuk produk tertentu.
Produser. Tahun rilis. Produk xxxxx:
Nama model individu.
Model dan Deskripsi BpS, Online. LANDFIRE. Washington, DC. Departemen Pertanian Amerika Serikat, Dinas Kehutanan
U.S. Department of the Interior; U.S. Geological Survey; Arlington, VA
The Nature Conservancy (Produser). Tersedia - URL. Tanggal akses.
Contoh Kutipan: LANDFIRE Biophysical Settings. 2018. Lingkungan biofisik 14420:
Padang rumput hamparan pasir Texas Selatan. Dalam: LANDFIRE Biophysical Setting Model: Map zone 36,
[Online]. Dalam: Model dan Deskripsi BpS. Di: LANDFIRE. Washington, DC:
U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior;
U.S. Geological Survey; Arlington, VA: The Nature Conservancy (Produser).
Tersedia: https://www.landfire.gov/bps-models.php [2018, 27 Juni].
Panduan tambahan tentang kutipan produk LANDFIRE dapat ditemukan di sini.
LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, adalah program bersama antara program pengelolaan kebakaran hutan dari Forest Service, U.S. Department of Agriculture, Geological Survey, U.S. Department of the Interior, dan The Nature Conservancy. Lapisan LANDFIRE (LF) dibuat menggunakan model lanskap prediktif berdasarkan …
[null,null,[],[[["\u003cp\u003eThis dataset from LANDFIRE provides Existing Vegetation Height (EVH) data, representing the average height of dominant vegetation in 30-meter cells.\u003c/p\u003e\n"],["\u003cp\u003eThe EVH data is generated using predictive landscape models that incorporate field data, satellite imagery, and biophysical layers, created by collaborative efforts of the USDA, USFS, USGS, and The Nature Conservancy.\u003c/p\u003e\n"],["\u003cp\u003eThe LANDFIRE program, which produces this dataset, is a collaborative project that aids in wildland fire management and resource planning.\u003c/p\u003e\n"],["\u003cp\u003eThe EVH dataset, which is composed of bands in 30-meter pixel size, includes the height, classes, and descriptive names of the existing vegetation, and it is used to develop other layers including the fuel products.\u003c/p\u003e\n"],["\u003cp\u003eThis resource is publicly available, though it is recommended to cite LANDFIRE products, and to add a descriptive modifier to derivatives of the dataset to prevent confusion.\u003c/p\u003e\n"]]],["The LANDFIRE (LF) program, a collaboration between the USDA, USFS, USGS, and The Nature Conservancy, provides the Existing Vegetation Height (EVH) dataset. This dataset, available via Google Earth Engine, represents average vegetation height in 30-meter cells, derived from predictive models using field data, satellite imagery, and biophysical gradients. EVH is calculated by weighting the average height based on species cover and the Existing Vegetation Type. The data has no use restrictions. The dataset is from 2014-09-01.\n"],null,["# LANDFIRE EVH (Existing Vegetation Height) v1.4.0\n\nDataset Availability\n: 2014-09-01T00:00:00Z--2014-09-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [U.S. Department of Agriculture's (USDA), U.S. Forest Service (USFS), U.S. Department of the Interior's Geological Survey (USGS), and The Nature Conservancy.](https://landfire.gov/)\n\nTags\n:\n[doi](/earth-engine/datasets/tags/doi) [fire](/earth-engine/datasets/tags/fire) [forest-biomass](/earth-engine/datasets/tags/forest-biomass) [landfire](/earth-engine/datasets/tags/landfire) [nature-conservancy](/earth-engine/datasets/tags/nature-conservancy) [usda](/earth-engine/datasets/tags/usda) [usgs](/earth-engine/datasets/tags/usgs) [vegetation](/earth-engine/datasets/tags/vegetation) [wildfire](/earth-engine/datasets/tags/wildfire) \n\n#### Description\n\nLANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a\nshared program between the wildland fire management programs of the U.S.\nDepartment of Agriculture's Forest Service, U.S. Department of the Interior's\nGeological Survey, and The Nature Conservancy.\n\nLANDFIRE (LF) layers are created using predictive landscape models based on\nextensive field-referenced data, satellite imagery and biophysical gradient\nlayers using classification and regression trees.\n\nExisting Vegetation Height (EVH) represents the average height of the dominant vegetation for a 30-m cell.\nCanopy height is generated separately for tree, shrub, and herbaceous lifeforms using training data and other geospatial layers. EVH is determined by the average height weighted by species cover and based on the Existing Vegetation Type (EVT) lifeform.\n\n- Decision tree models using field reference data, lidar, Landsat, and ancillary data are developed separately for each lifeform. Decision tree relationships are used to generate lifeform specific height class layers, which are merged into a single composite EVH layer.\n\n- Disturbance data were used to develop LF Remap products for LFRDB plot filtering and to ensure 2015 and 2016 disturbances were included that were not visible in the source imagery.\n\n- The EVC product is then reconciled through QA/QC measures to ensure life-form is synchronized with both Existing Vegetation Cover and EVT products.\n\nLF uses EVH in several subsequent layers, including the development of the fuel products.\n\nThe LANDIFRE Vegetation datasets include:\n\n- Biophysical Settings (BPS)\n- Environmental Site Potential (ESP)\n- Existing Vegetation Canopy Cover (EVC)\n- Existing Vegetation Height (EVH).\n- Existing Vegetation Type (EVT) These layers are created using predictive landscape models based on extensive field-referenced data, satellite imagery and biophysical gradient layers using classification and regression trees.\n\n### Bands\n\n\n**Pixel Size**\n\n30 meters\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|-------|------------|----------------------------|\n| `EVH` | meters | Existing Vegetation Height |\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|-------------|--------|------------------------------------------------------|\n| EVH_classes | DOUBLE | Class values of the Existing Vegetation Height. |\n| EVH_names | STRING | Descriptive names of the Existing Vegetation Height. |\n\n### Terms of Use\n\n**Terms of Use**\n\nLANDFIRE data are public domain data with no use restrictions, though if modifications\nor derivatives of the product(s) are created, then please add some descriptive modifier\nto the data set to avoid confusion.\n\n### Citations\n\nCitations:\n\n- The suggested way to cite LANDFIRE products is specific to each product,\n so the model for citation is provided, with an example for a particular product.\n Producer. Year released. Product xxxxx:\n - Individual model name.\n - BpS Models and Descriptions, Online. LANDFIRE. Washington, DC. U.S. Department of Agriculture, Forest Service\n - U.S. Department of the Interior; U.S. Geological Survey; Arlington, VA\n - The Nature Conservancy (Producers). Available- URL. Access date.\n\n Example Citation: LANDFIRE Biophysical Settings. 2018. Biophysical setting 14420:\n South Texas sand sheet grassland. In: LANDFIRE Biophysical Setting Model: Map zone 36,\n \\[Online\\]. In: BpS Models and Descriptions. In: LANDFIRE. Washington, DC:\n U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior;\n U.S. Geological Survey; Arlington, VA: The Nature Conservancy (Producers).\n Available: \u003chttps://www.landfire.gov/bps-models.php\u003e \\[2018, June 27\\].\n Additional guidance on citation of LANDFIRE products can be found\n [here](https://landfire.gov/data/citation)\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('LANDFIRE/Vegetation/EVH/v1_4_0');\n\nvar visualization = {\n bands: ['EVH'],\n};\n\nMap.setCenter(-121.671, 40.699, 5);\n\nMap.addLayer(dataset, visualization, 'EVH');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/LANDFIRE/LANDFIRE_Vegetation_EVH_v1_4_0) \n[LANDFIRE EVH (Existing Vegetation Height) v1.4.0](/earth-engine/datasets/catalog/LANDFIRE_Vegetation_EVH_v1_4_0) \nLANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. LANDFIRE (LF) layers are created using predictive landscape models based on extensive ... \nLANDFIRE/Vegetation/EVH/v1_4_0, doi,fire,forest-biomass,landfire,nature-conservancy,usda,usgs,vegetation,wildfire \n2014-09-01T00:00:00Z/2014-09-01T00:00:00Z \n17.52 -175.1 71.48 -63.66 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://landfire.gov/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/LANDFIRE_Vegetation_EVH_v1_4_0)"]]
