EMIT Projesi, NASA Earth Science Division (ESD) Program Direktörü tarafından yönetilen Earth Venture-Instrument (EV-I) Programı'nın bir parçasıdır.
EMIT, Uluslararası Uzay İstasyonu'na (ISS) kurulmaya uygun hale getirilmiş bir VSWIR kızılötesi Dyson görüntüleme spektrometresinden oluşur. EMIT, yaklaşık 7 nm bant geçişiyle 380 ile 2.500 nanometre arasındaki ışıma miktarını ölçer.
Veriler, Ekvator'da yaklaşık 75 km genişliğinde bir şerit halinde toplanır ve yaklaşık 60 m'lik bir yer örnekleme mesafesine sahiptir. Daha fazla bilgi için sağlayıcının NASA EMIT'e Genel Bakış başlıklı makalesine bakın.
EMIT, metan, karbondioksit ve su buharı dahil olmak üzere sera gazlarının haritasını çıkarmak için özellikle yararlı bir araçtı. Bu, hava kaynaklı verilerden elde edilen önceki bulgularla tutarlıdır ancak EMIT'in küresel yapısı, yeniden ziyaret sıklığı ve geniş alanı, sera gazı geri kazanımlarını incelemek için benzeri görülmemiş bir fırsat sunmuştur.
EMIT 2B Seviyesi Tahmini Metan Plumu Kompleksleri (EMITL2BCH4PLM) Sürüm
1 veri ürünü, milyon başına metre (ppm m) cinsinden tahmini metan plumu komplekslerini belirsizlik verileriyle birlikte sağlar. EMITL2BCH4PLM verileri
yalnızca metan bulutu komplekslerinin tespit edildiği yerlerde oluşturulur.
Bantlar
Piksel Boyutu 72.000 metre
Bantlar
Ad
Birimler
Piksel Boyutu
Açıklama
methane_plume_complex
ppm m
metre
Tahmini metan bulutu kompleksi.
Resim Özellikleri
Resim Özellikleri
Ad
Tür
Açıklama
global_plume_identifier
DİZE
Global Plume Identification Number
Concentration_Uncertainty
ÇİFT
Yoğunluktaki Belirsizlik
DAAC_Scene_Names
STRING_LIST
DAAC Sahne Adları
DAAC_Scene_Numbers
STRING_LIST
DAAC Sahne Numaraları
DCID
DİZE
Veri Toplama Tanımlayıcısı
Latitude_of_max_concentration
ÇİFT
Maksimum konsantrasyonda enlem
Longitude_of_max_concentration
ÇİFT
Maksimum konsantrasyonlu boylam
Max_Plume_Concentration
ÇİFT
Maksimum Duman Konsantrasyonu
Kuasar
DİZE
Benzersiz yörünge numarası
Plume_ID
DİZE
Benzersiz Plume kimlik numarası
Scene_FIDs
STRING_LIST
Sahne FIDs
Kullanım Şartları
Kullanım Şartları
LP DAAC aracılığıyla edinilen NASA EMIT verileri ve ürünleri, sonraki kullanım, satış veya yeniden dağıtım açısından herhangi bir kısıtlamaya tabi değildir.
Alıntılar
Alıntılar:
Green, R., Thorpe, A., Brodrick, P., Chadwick, D., Elder, C.,
Villanueva-Weeks, C., Fahlen, J., Coleman, R., Jensen, D., Olsen-Duvall, W.,
Lundeen, S., Lopez, A., Thompson, D. (2023). EMIT L2B Estimated Methane
Plume Complexes 60 m V001 [Veri kümesi]. NASA EOSDIS Land Processes Distributed
Active Archive Center. https://doi.org/10.5067/EMIT/EMITL2BCH4PLM.001 adresinden 06.03.2024 tarihinde erişildi.
EMIT Projesi, NASA Dünya Bilimi Bölümü (ESD) Program Direktörü tarafından yönetilen Earth Venture-Instrument (EV-I) Programı'nın bir parçasıdır. EMIT, Uluslararası Uzay İstasyonu'na (ISS) kurulmaya uygun hale getirilmiş bir VSWIR Kızılötesi Dyson görüntüleme spektrometresinden oluşur. EMIT, 380 ile 2.500 nanometre arasındaki ışıma miktarını ölçer. …
[null,null,[],[[["\u003cp\u003eThe NASA EMIT L2B Estimated Methane Plume Complexes dataset provides estimated methane plume complexes and uncertainty data in parts per million meter (ppm m).\u003c/p\u003e\n"],["\u003cp\u003eData is collected globally by the EMIT instrument on the International Space Station with a ground sampling distance of 60m and a swath width of ~75km.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is useful for identifying and quantifying methane plumes, supporting greenhouse gas research and environmental monitoring efforts.\u003c/p\u003e\n"],["\u003cp\u003eEMIT data is freely available for use, sale, and redistribution without restrictions.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset can be accessed and analyzed through Google Earth Engine using the provided code snippet.\u003c/p\u003e\n"]]],[],null,["# Earth Surface Mineral Dust Source Investigation- Methane Plume Complexes\n\nDataset Availability\n: 2022-08-10T00:00:00Z--2024-10-26T17:21:33Z\n\nDataset Provider\n:\n\n\n [NASA Jet Propulsion Laboratory](https://earth.jpl.nasa.gov/emit/data/data-products/)\n\nCadence\n: 1 Day\n\nTags\n:\n[atmosphere](/earth-engine/datasets/tags/atmosphere) [daily](/earth-engine/datasets/tags/daily) [emit](/earth-engine/datasets/tags/emit) [methane](/earth-engine/datasets/tags/methane) [nasa](/earth-engine/datasets/tags/nasa) \n\n#### Description\n\nThe EMIT Project is part of the Earth Venture-Instrument (EV-I) Program\ndirected by the Program Director of the NASA Earth Science Division (ESD).\nEMIT is comprised of a VSWIR Infrared Dyson imaging spectrometer adapted for\ninstallation on the International Space Station (ISS). EMIT measures\nradiance between 380 and 2500 nanometers, with an approximate 7 nm bandpass.\nData are collected in a swath that is approximately 75 km wide at the\nequator, with an approximate ground sampling distance of 60 m. See the\nprovider's [NASA EMIT Overview](https://lpdaac.usgs.gov/documents/1695/EMIT_L2B_GHG_User_Guide_V1.pdf)\nfor more details.\n\nEMIT was a particularly useful tool for mapping out greenhouse gases,\nincluding methane, carbon dioxide, and water vapor. This is consistent with\nprevious findings from airborne data, but global nature, revisit frequency\nand wide swath of EMIT provided an unprecedented opportunity to investigate\ngreenhouse gas retrievals.\n\nThe EMIT Level 2B Estimated Methane Plume Complexes (EMITL2BCH4PLM) Version\n1 data product provides estimated methane plume complexes in parts per\nmillion meter (ppm m) along with uncertainty data. The EMITL2BCH4PLM data\nproduct will only be generated where methane plume complexes have been\nidentified.\n\n### Bands\n\n\n**Pixel Size**\n\n72000 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|-------------------------|-------|------------|----------------------------------|\n| `methane_plume_complex` | ppm m | meters | Estimated Methane plume complex. |\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|--------------------------------|-------------|--------------------------------------|\n| global_plume_identifier | STRING | Global Plume Identification Number |\n| Concentration_Uncertainty | DOUBLE | Uncertainity in Concentration |\n| DAAC_Scene_Names | STRING_LIST | DAAC Scene Names |\n| DAAC_Scene_Numbers | STRING_LIST | DAAC Scene Numbers |\n| DCID | STRING | Data Collection Identifier |\n| Latitude_of_max_concentration | DOUBLE | Latitute with maximum concentration |\n| Longitude_of_max_concentration | DOUBLE | Longitude with maximum concentration |\n| Max_Plume_Concentration | DOUBLE | Maximum Plume Concentration |\n| Orbit | STRING | Unique orbit number |\n| Plume_ID | STRING | Unique Plume Identification number |\n| Scene_FIDs | STRING_LIST | Scene FIDs |\n\n### Terms of Use\n\n**Terms of Use**\n\nNASA EMIT data and products acquired through the LP DAAC\nhave no restrictions on subsequent use, sale, or redistribution.\n\n### Citations\n\nCitations:\n\n- Green, R., Thorpe, A., Brodrick, P., Chadwick, D., Elder, C.,\n Villanueva-Weeks, C., Fahlen, J., Coleman, R., Jensen, D., Olsen-Duvall, W.,\n Lundeen, S., Lopez, A., Thompson, D. (2023). EMIT L2B Estimated Methane\n Plume Complexes 60 m V001 \\[Data set\\]. NASA EOSDIS Land Processes Distributed\n Active Archive Center. Accessed 2024-03-06 from\n \u003chttps://doi.org/10.5067/EMIT/EMITL2BCH4PLM.001\u003e\n\n### DOIs\n\n- \u003chttps://doi.org/10.5067/EMIT/EMITL2BCH4PLM.001\u003e\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('NASA/EMIT/L2B/CH4PLM');\nvar emitEnhancement = dataset.select('methane_plume_complex');\nvar emitEnhancementVis = {\n min: 0,\n max: 100.0,\n palette: ['d7191c', 'fdae61', 'ffffbf', 'abd9e9', '2c7bb6'],\n};\nMap.setCenter(53.99, 39.11, 8);\nMap.addLayer(\n emitEnhancement, emitEnhancementVis,\n 'Emit Enhancement');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_EMIT_L2B_CH4PLM) \n[Earth Surface Mineral Dust Source Investigation- Methane Plume Complexes](/earth-engine/datasets/catalog/NASA_EMIT_L2B_CH4PLM) \nThe EMIT Project is part of the Earth Venture-Instrument (EV-I) Program directed by the Program Director of the NASA Earth Science Division (ESD). EMIT is comprised of a VSWIR Infrared Dyson imaging spectrometer adapted for installation on the International Space Station (ISS). EMIT measures radiance between 380 and 2500 nanometers, ... \nNASA/EMIT/L2B/CH4PLM, atmosphere,daily,emit,methane,nasa \n2022-08-10T00:00:00Z/2024-10-26T17:21:33Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/EMIT/EMITL2BCH4PLM.001](https://doi.org/https://earth.jpl.nasa.gov/emit/data/data-products/)\n- [https://doi.org/10.5067/EMIT/EMITL2BCH4PLM.001](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_EMIT_L2B_CH4PLM)"]]
