{"description":"Penman-Monteith-Leuning Evapotranspiration V2 (PML_V2) products include\nevapotranspiration (ET), its three components, and\ngross primary production (GPP) at 500m and 8-day resolution during 2000-2023\nand with spatial range from -60°S to 90°N. The major advantages of the\nPML_V2 products are:\n\n  1. Coupled estimates of transpiration and GPP via canopy\n  conductance (Gan et al., 2018; Zhang et al., 2019)\n  2. Partitioning ET into three components: transpiration from vegetation,\n  direct evaporation from the soil, and vaporization of intercepted\n   rainfall from vegetation (Zhang et al., 2016).\n\nThe PML_V2 products perform well against observations\nat 95 flux sites across the globe, and are similar to or noticeably better than\nmajor state-of-the-art ET and GPP products widely used by water and ecology\nresearch communities (Zhang et al., 2019).\n\nNote on versioning: For consistency in naming conventions, PML-V2.1.8 replaces the previous PML-V2 0.1.8.\n\nKey changes in V2.1.8 compared with the original V2.0 (Zhang et al., 2019):\n1. Temporal coverage is lengthened to the latest (may update annually) with the MODIS C6.1 data.\n2. MODIS Terra LAI (MOD15A2H) is used rather than the composite LAI (MCD15A3H).\n3. Parameters are recalibrated with the change in LAI, while other forcings remain the same.\n","extent":{"spatial":{"bbox":[[-180,-60,180,90]]},"temporal":{"interval":[["2000-02-26T00:00:00Z","2023-12-27T00:00:00Z"]]}},"gee:categories":["plant-productivity","water-vapor"],"gee:interval":{"interval":8,"type":"cadence","unit":"day"},"gee:status":"deprecated","gee:terms_of_use":"Acknowledgements\n\nWhenever PML datasets are used in a scientific publication, the given\nreferences should be cited.\n\nLicense\n\nThe dataset is licensed under the\n[CC-BY 4.0 license](https://creativecommons.org/licenses/by/4.0/).\n","gee:type":"image_collection","gee:user_uploaded":true,"id":"CAS/IGSNRR/PML/V2_v018","keywords":["evapotranspiration","gpp","plant-productivity","water-vapor"],"license":"CC-BY-4.0","links":[{"href":"https://earthengine.openeo.org/v1.0/collections/CAS/IGSNRR/PML/V2_v018","rel":"self","type":"application/json"},{"href":"https://earthengine.openeo.org/v1.0/","rel":"parent","type":"application/json"},{"href":"https://earthengine.openeo.org/v1.0/","rel":"root","type":"application/json"},{"code":"JavaScript","href":"https://code.earthengine.google.com/?scriptPath=Examples:Datasets/CAS/CAS_IGSNRR_PML_V2_v018","rel":"related","title":"Run the example for CAS/IGSNRR/PML/V2_v018 in the Earth Engine Code Editor","type":"text/html"},{"href":"https://developers.google.com/earth-engine/datasets/images/CAS/CAS_IGSNRR_PML_V2_v018_sample.png","rel":"preview","type":"image/png"},{"href":"https://developers.google.com/earth-engine/datasets/catalog/CAS_IGSNRR_PML_V2_v018#terms-of-use","rel":"license","type":"text/html"},{"href":"https://storage.googleapis.com/earthengine-stac/catalog/CAS/CAS_IGSNRR_PML_V2_v017.json","rel":"predecessor-version","title":"CAS/IGSNRR/PML/V2_v017","type":"application/json"},{"href":"https://storage.googleapis.com/earthengine-stac/catalog/pml_evapotranspiration/projects_pml_evapotranspiration_PML_OUTPUT_PML_V22a.json","rel":"successor-version","title":"projects/pml_evapotranspiration/PML/OUTPUT/PML_V22a","type":"application/json"},{"href":"https://storage.googleapis.com/earthengine-stac/catalog/pml_evapotranspiration/projects_pml_evapotranspiration_PML_OUTPUT_PML_V22a.json","rel":"latest-version","title":"projects/pml_evapotranspiration/PML/OUTPUT/PML_V22a","type":"application/json"},{"rel":"http://www.opengis.net/def/rel/ogc/1.0/queryables","href":"https://earthengine.openeo.org/v1.0/collections/CAS/IGSNRR/PML/V2_v018/queryables","title":"Queryables","type":"application/schema+json"},{"rel":"items","href":"https://earthengine.openeo.org/v1.0/collections/CAS/IGSNRR/PML/V2_v018/items","type":"application/geo+json"}],"providers":[{"name":"PML_V2","roles":["licensor","producer"],"url":"https://github.com/kongdd/PML"},{"name":"Google Earth Engine","roles":["host"],"url":"https://developers.google.com/earth-engine/datasets/catalog/CAS_IGSNRR_PML_V2_v018"}],"sci:citation":"Zhang, Y., Kong, D., Gan, R., Chiew, F.H.S., McVicar, T.R., Zhang, Q.,\nand Yang, Y., 2019. Coupled estimation of 500m and 8-day resolution global\nevapotranspiration and gross primary production in 2002-2017.\nRemote Sens. Environ. 222, 165-182,\n[doi:10.1016/j.rse.2018.12.031](https://doi.org/10.1016/j.rse.2018.12.031)\n","sci:publications":[{"citation":"Gan, R., Zhang, Y.Q., Shi, H., Yang, Y.T., Eamus, D., Cheng, L.,\nChiew, F.H.S., Yu, Q., 2018. Use of satellite leaf area index estimating\nevapotranspiration and gross assimilation for Australian ecosystems.\nEcohydrology, [doi:10.1002/eco.1974](https://doi.org/10.1002/eco.1974)\n","doi":"10.1002/eco.1974"},{"citation":"Zhang, Y., Peña-Arancibia, J.L., McVicar, T.R., Chiew, F.H.S., Vaze, J.,\nLiu, C., Lu, X., Zheng, H., Wang, Y., Liu, Y.Y., Miralles, D.G., Pan,\nM., 2016. Multi-decadal trends in global terrestrial evapotranspiration\nand its components. Sci. Rep. 6, 19124.\n[doi:10.1038/srep19124](https://doi.org/10.1038/srep19124)\n","doi":"10.1038/srep19124"}],"stac_extensions":["https://stac-extensions.github.io/datacube/v2.2.0/schema.json"],"stac_version":"1.0.0","summaries":{"ET_water":{"gee:estimated_range":true,"maximum":20.11,"minimum":0},"Ec":{"gee:estimated_range":true,"maximum":15.33,"minimum":0},"Ei":{"gee:estimated_range":true,"maximum":12.56,"minimum":0},"Es":{"gee:estimated_range":true,"maximum":8.2,"minimum":0},"GPP":{"gee:estimated_range":true,"maximum":39.01,"minimum":0},"eo:bands":[{"description":"Gross primary production","gee:units":"gC m-2 d-1","name":"GPP","gsd":[500]},{"description":"Vegetation transpiration","gee:units":"mm/d","name":"Ec","gsd":[500]},{"description":"Soil evaporation","gee:units":"mm/d","name":"Es","gsd":[500]},{"description":"Interception from vegetation canopy","gee:units":"mm/d","name":"Ei","gsd":[500]},{"description":"Evaporation from water bodies, snow, and ice. Calculated using the\nPenman equation, which is considered a good estimate of actual\nevaporation for these surfaces.\n","gee:units":"mm/d","name":"ET_water","gsd":[500]}],"gee:visualizations":[{"display_name":"PML_V2 0.1.8 Gross Primary Product (GPP)","image_visualization":{"band_vis":{"bands":["GPP"],"max":[9],"min":[0],"palette":["a50026","d73027","f46d43","fdae61","fee08b","ffffbf","d9ef8b","a6d96a","66bd63","1a9850","006837"]}},"lookat":{"lat":15,"lon":66.3,"zoom":2}}],"gsd":[500]},"title":"PML_V2.1.8: Coupled Evapotranspiration and Gross Primary Product (GPP) [deprecated]","type":"Collection","version":"0.1.8","deprecated":true,"cube:dimensions":{"x":{"type":"spatial","axis":"x","extent":[-180,180]},"y":{"type":"spatial","axis":"y","extent":[-60,90]},"t":{"type":"temporal","extent":["2000-02-26T00:00:00Z","2023-12-27T00:00:00Z"]},"bands":{"type":"bands","values":["GPP","Ec","Es","Ei","ET_water"]}},"assets":{"preview_4":{"href":"https://developers.google.com/earth-engine/datasets/images/CAS/CAS_IGSNRR_PML_V2_v018_sample.png","type":"image/png","roles":["thumbnail"]}}}