Kanal merkez çizgilerindeki nehir kanalı genişliği. Nehir kanalı genişliği, [Yamazaki et al. 2012, WRR]'de açıklanan yöntemle hesaplanır ve algoritmada bazı iyileştirmeler/değişiklikler yapılır. Bu bant, küresel ölçekte daha iyi görselleştirme için orijinal 3 yay saniyesinden 18 yay saniyesine yükseltildi.
upa
km^2
metre
Yukarı akış drenaj alanı (akış birikim alanı). Bu bant, küresel ölçekte daha iyi görselleştirme için orijinal 3 yay saniyesinden 18 yay saniyesine yükseltildi.
Kullanım Şartları
Kullanım Şartları
MERIT Hydro'yu kullanmanız durumunda makaleye atıfta bulunmanız yeterlidir. Veri kümesinin ek olarak işlenmesi/düzenlenmesi için yardım istediyseniz veya araştırma sonucunuz ürüne büyük ölçüde bağlıysa geliştirici, ortak yazarlık isteğinde bulunur.
MERIT Hydro, Creative Commons "CC-BY-NC 4.0" veya Open Data Commons "Open Database License (ODbL 1.0)" kapsamında lisanslanmıştır. Çift lisansla, sizin için uygun bir lisans seçebilirsiniz.
Bu lisansların bir kopyasını görüntülemek için lütfen şu adresi ziyaret edin:
ODbL 1.0 lisansı:
Ticari kullanım uygundur ancak MERIT Hydro'ya dayalı türetilmiş veriler aynı ODbL lisansı kapsamında herkese açık olarak sunulmalıdır. Örneğin, MERIT Hydro kullanarak sel tehlikesi haritası oluşturursanız ve buna dayalı bir TİCARİ hizmet sunmak isterseniz tehlike haritasını OdBL lisansı kapsamında HERKESE AÇIK hale getirmeniz gerekir.
Yukarıdaki lisans şartlarının, MERIT Hydro'ya dayalı "türetilmiş veriler" için geçerli olduğunu, MERIT Hydro ile oluşturulan "üretilmiş çalışma / sanat eseri" (ör. bir dergi makalesindeki şekiller) için geçerli olmadığını unutmayın. Kullanıcılar, sanat eserinin telif hakkına sahip olabilir ve üretilen çalışma "türetilmiş veri" olarak kabul edilmediğinde herhangi bir lisans atayabilir.
Kullanıcı, verileri indirip kullanarak lisansın hükümlerini ve koşullarını kabul etmiş olur. Bu ücretsiz lisansa rağmen, yazarlardan açık yazılı izin almadan verileri orijinal biçiminde diğer web sitelerinde tamamen yeniden dağıtmaktan kaçınmanızı rica ederiz.
MERIT Hydro'nun telif hakkı geliştiricilere aittir (2019, tüm hakları saklıdır).
Alıntılar
Alıntılar:
Yamazaki D., D. Ikeshima, J. Sosa, P.D. Bates, G.H. Allen, T.M. Pavelsky.
MERIT Hydro: En son topografya veri kümelerine dayalı yüksek çözünürlüklü küresel hidrografi haritası
Water Resources Research, cilt 55, s. 5053-5073, 2019,
doi:10.1029/2019WR024873
[null,null,[],[[["\u003cp\u003eMERIT Hydro Reduced provides supplementary visualization layers for the MERIT Hydro dataset, including river width and upstream drainage area.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset has a resolution of 556.6 meters and covers the period from 1987 to 2017.\u003c/p\u003e\n"],["\u003cp\u003eIt is licensed under CC-BY-NC 4.0 or ODbL 1.0, allowing for non-commercial or commercial use with specific conditions.\u003c/p\u003e\n"],["\u003cp\u003eUsers can explore and analyze this dataset within Google Earth Engine.\u003c/p\u003e\n"],["\u003cp\u003eProper citation is required when using this dataset, with potential co-authorship requests for significant research contributions.\u003c/p\u003e\n"]]],[],null,["# MERIT Hydro: Supplementary Visualization Layers\n\nDataset Availability\n: 1987-01-01T00:00:00Z--2017-01-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [Dai Yamazaki (University of Tokyo)](http://hydro.iis.u-tokyo.ac.jp/~yamadai/MERIT_Hydro/index.html)\n\nTags\n:\n[dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [flow-direction](/earth-engine/datasets/tags/flow-direction) [hand](/earth-engine/datasets/tags/hand) [hydrography](/earth-engine/datasets/tags/hydrography) [hydrosheds](/earth-engine/datasets/tags/hydrosheds) [merit](/earth-engine/datasets/tags/merit) [river-width](/earth-engine/datasets/tags/river-width) [surface-ground-water](/earth-engine/datasets/tags/surface-ground-water) [upstream-drainage-area](/earth-engine/datasets/tags/upstream-drainage-area) \n\n#### Description\n\nSupplementary visualization layers for [MERIT Hydro](/earth-engine/datasets/catalog/MERIT_Hydro_v1_0_1)\n\n### Bands\n\n\n**Pixel Size**\n\n556.6 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|-------|-------|------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `wth` | | meters | River channel width at the channel centerlines. River channel width is calculated by the method described in \\[Yamazaki et al. 2012, WRR\\], with some improvements/changes on the algorithm. This band was upscaled to 18 arc seconds from the original 3 arc seconds for better visualization at global scale. |\n| `upa` | km\\^2 | meters | Upstream drainage area (flow accumulation area). This band was upscaled to 18 arc seconds from the original 3 arc seconds for better visualization at global scale. |\n\n### Terms of Use\n\n**Terms of Use**\n\nCitation to the paper is adequate if you simply use MERIT Hydro. If you\nasked for help for additional handling/editing of the dataset, or if your research\noutcome highly depends on the product, the developer would request co-authorship.\n\nMERIT Hydro is licensed under a Creative Commons \"CC-BY-NC 4.0\" or Open\nData Commons \"Open Database License (ODbL 1.0)\". With a dual license, you can\nchoose an appropriate license for you.\n\nTo view a copy of these license, please visit:\n\n- [CC-BY-NC 4.0 license](http://creativecommons.org/licenses/by-nc/4.0/): Non-Commercial Use with less restriction.\n- [ODbL 1.0 license](https://opendatacommons.org/licenses/odbl/summary/): Commectial Use is OK, but the derived data based on MERIT Hydro should be made publicly available under the same ODbL license. For example, if you create a flood hazard map using MERIT Hydro and you would like to provide a COMMERCIAL service based on that, you have to make the hazard map PUBLICLY AVAILABLE under OdBL license.\n\nNote that the above license terms are applied to the \"derived data\" based\non MERIT Hydro, while they are not applied to \"produced work / artwork\" created\nwith MERIT Hydro (such as figures in a journal paper). The users may have a\ncopyright of the artwork and may assign any license, when the produced work\nis not considered as \"derived data\".\n\nBy downloading and using the data the user agrees to the terms and\nconditions of the license. Notwithstanding this free license, we ask users to\nrefrain from redistributing the data in whole in its original format on other\nwebsites without the explicit written permission from the authors.\n\nThe copyright of MERIT Hydro is held by the developers, 2019, all rights reserved.\n\n### Citations\n\nCitations:\n\n- Yamazaki D., D. Ikeshima, J. Sosa, P.D. Bates, G.H. Allen, T.M. Pavelsky.\n MERIT Hydro: A high-resolution global hydrography map based on latest\n topography datasets\n Water Resources Research, vol.55, pp.5053-5073, 2019,\n [doi:10.1029/2019WR024873](https://doi.org/10.1029/2019WR024873)\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.Image('MERIT/Hydro_reduced/v1_0_1');\n\nvar visualization = {\n bands: 'wth',\n min: 0,\n max: 400\n};\n\nMap.setCenter(90.301, 23.052, 10);\n\nMap.addLayer(dataset, visualization, 'River width');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MERIT/MERIT_Hydro_reduced_v1_0_1) \n[MERIT Hydro: Supplementary Visualization Layers](/earth-engine/datasets/catalog/MERIT_Hydro_reduced_v1_0_1) \nSupplementary visualization layers for MERIT Hydro \nMERIT/Hydro_reduced/v1_0_1, dem,elevation,flow-direction,hand,hydrography,hydrosheds,merit,river-width,surface-ground-water,upstream-drainage-area \n1987-01-01T00:00:00Z/2017-01-01T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/http://hydro.iis.u-tokyo.ac.jp/~yamadai/MERIT_Hydro/index.html)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MERIT_Hydro_reduced_v1_0_1)"]]
