Der Breathing Earth System Simulator (BESS) ist ein vereinfachtes prozessbasiertes Modell, das die Strahlungsübertragung zwischen Atmosphäre und Baumkronen, die Photosynthese der Baumkronen, die Transpiration und die Energiebilanz koppelt. Dabei werden ein atmosphärisches Strahlungsübertragungsmodell und ein künstliches neuronales Netzwerk mit Forcings aus MODIS-Atmosphärenprodukten kombiniert, um tägliche Produkte mit einer Auflösung von 5 km zu generieren.
Publikationen:
Ryu Youngryel, Chongya Jiang, Hideki Kobayashi, Matteo Detto,
MODIS-derived global land products of shortwave radiation and diffuse and
total photosynthetically active radiation at 5km resolution from 2000.
Remote Sensing of Environment, Band 204, 2018.
doi:10.1016/j.rse.2017.09.021
Bänder
Pixelgröße 5.500 Meter
Bänder
Name
Einheiten
Pixelgröße
Beschreibung
PAR_Daily
W/m^2
Meter
Abwärts gerichteter photosynthetischer Strahlungsfluss an der Erdoberfläche in der Luft
PARdiff_Daily
W/m^2
Meter
Diffuser abwärts gerichteter photosynthetischer Strahlungsfluss an der Oberfläche in der Luft
RSDN_Daily
W/m^2
Meter
Kurzwelliger Fluss an der Erdoberfläche in der Luft
Der Breathing Earth System Simulator (BESS) ist ein vereinfachtes prozessbasiertes Modell, das die Strahlungsübertragung zwischen Atmosphäre und Baumkronen, die Photosynthese der Baumkronen, die Transpiration und die Energiebilanz koppelt. Es kombiniert ein atmosphärisches Strahlungsübertragungsmodell und ein künstliches neuronales Netzwerk mit Forcings aus MODIS-Atmosphärenprodukten, um tägliche Produkte mit einer Auflösung von 5 km zu generieren. Veröffentlichungen: Ryu Youngryel, Chongya Jiang, …
[null,null,[],[[["\u003cp\u003eThe BESS Radiation dataset provides daily estimates of shortwave radiation and photosynthetically active radiation (PAR) at a 5km resolution.\u003c/p\u003e\n"],["\u003cp\u003eIt covers the period from 2001 to 2021 and is derived from MODIS atmospheric products using a simplified process-based model.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is available through Google Earth Engine and is provided by Seoul National University.\u003c/p\u003e\n"],["\u003cp\u003eIt's licensed under CC-BY-4.0 and is useful for studies on evapotranspiration, GPP, and radiation.\u003c/p\u003e\n"]]],[],null,["# Breathing Earth System Simulator (BESS) Radiation v1\n\nDataset Availability\n: 2001-01-01T00:00:00Z--2021-12-31T00:00:00Z\n\nDataset Provider\n:\n\n\n [Seoul National University (SNU)](https://www.environment.snu.ac.kr/bess-rad)\n\nCadence\n: 1 Day\n\nTags\n:\n[climate](/earth-engine/datasets/tags/climate) [evapotranspiration](/earth-engine/datasets/tags/evapotranspiration) [gpp](/earth-engine/datasets/tags/gpp) [modis-derived](/earth-engine/datasets/tags/modis-derived) [par](/earth-engine/datasets/tags/par) [radiation](/earth-engine/datasets/tags/radiation) [shortwave](/earth-engine/datasets/tags/shortwave) \n\n#### Description\n\nBreathing Earth System Simulator (BESS) is a simplified process-based model\nthat couples atmosphere and canopy radiative transfers, canopy\nphotosynthesis, transpiration, and energy balance. It couples an atmospheric\nradiative transfer model and artificial neural network with forcings from\nMODIS atmospheric products to generate 5-km daily products.\n\nPublications:\n\n- Ryu Youngryel, Chongya Jiang, Hideki Kobayashi, Matteo Detto, MODIS-derived global land products of shortwave radiation and diffuse and total photosynthetically active radiation at 5km resolution from 2000. Remote Sensing of Environment, Volume 204, 2018. [doi:10.1016/j.rse.2017.09.021](https://doi.org/10.1016/j.rse.2017.09.021)\n\n### Bands\n\n\n**Pixel Size**\n\n5500 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|-----------------|--------|------------|------------------------------------------------------------------|\n| `PAR_Daily` | W/m\\^2 | meters | Surface downwelling photosynthetic radiative flux in air |\n| `PARdiff_Daily` | W/m\\^2 | meters | Surface diffuse downwelling photosynthetic radiative flux in air |\n| `RSDN_Daily` | W/m\\^2 | meters | Surface downwelling shortwave flux in air |\n\n### Terms of Use\n\n**Terms of Use**\n\n[CC-BY-4.0](https://spdx.org/licenses/CC-BY-4.0.html)\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('SNU/ESL/BESS/Rad/v1');\n\nvar visParams = {\n bands: ['PAR_Daily'],\n min: 0,\n max: 70,\n palette: ['black', 'purple', 'blue', 'yellow', 'orange', 'red']\n};\n\nMap.setCenter(2.1, 24.9, 3);\n\nMap.addLayer(\n dataset, visParams,\n 'Surface downwelling photosynthetic radiative flux (W/m^2)');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/SNU/SNU_ESL_BESS_Rad_v1) \n[Breathing Earth System Simulator (BESS) Radiation v1](/earth-engine/datasets/catalog/SNU_ESL_BESS_Rad_v1) \nBreathing Earth System Simulator (BESS) is a simplified process-based model that couples atmosphere and canopy radiative transfers, canopy photosynthesis, transpiration, and energy balance. It couples an atmospheric radiative transfer model and artificial neural network with forcings from MODIS atmospheric products to generate 5-km daily products. Publications: Ryu Youngryel, Chongya Jiang, ... \nSNU/ESL/BESS/Rad/v1, climate,evapotranspiration,gpp,modis-derived,par,radiation,shortwave \n2001-01-01T00:00:00Z/2021-12-31T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://www.environment.snu.ac.kr/bess-rad)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/SNU_ESL_BESS_Rad_v1)"]]
