Lebar saluran sungai di garis tengah saluran. Lebar saluran sungai dihitung dengan metode yang dijelaskan dalam [Yamazaki et al. 2012, WRR], dengan beberapa peningkatan/perubahan pada algoritma. Band ini di-upscale menjadi 18 detik busur
dari 3 detik busur asli untuk visualisasi yang lebih baik dalam skala global.
upa
km^2
meter
Area drainase hulu (area akumulasi aliran). Band ini di-upscale
dari 3 detik busur menjadi 18 detik busur untuk visualisasi yang lebih baik
pada skala global.
Persyaratan Penggunaan
Persyaratan Penggunaan
Kutipan ke makalah sudah memadai jika Anda hanya menggunakan MERIT Hydro. Jika Anda
meminta bantuan untuk penanganan/pengeditan tambahan set data, atau jika hasil riset
Anda sangat bergantung pada produk, developer akan meminta ikut menulis.
MERIT Hydro dilisensikan berdasarkan Creative Commons "CC-BY-NC 4.0" atau Open
Data Commons "Open Database License (ODbL 1.0)". Dengan lisensi ganda, Anda dapat memilih lisensi yang sesuai untuk Anda.
Lisensi ODbL 1.0:
Penggunaan Komersial Diizinkan, tetapi data turunan berdasarkan MERIT Hydro harus tersedia untuk umum dengan lisensi ODbL yang sama. Misalnya, jika Anda membuat peta bahaya banjir menggunakan MERIT Hydro dan ingin menyediakan layanan KOMERSIAL berdasarkan peta tersebut, Anda harus membuat peta bahaya tersebut TERSEDIA SECARA PUBLIK dengan lisensi OdBL.
Perhatikan bahwa persyaratan lisensi di atas diterapkan pada "data turunan" berdasarkan MERIT Hydro, sedangkan persyaratan tersebut tidak diterapkan pada "karya / karya seni yang dihasilkan" yang dibuat dengan MERIT Hydro (seperti gambar dalam makalah jurnal). Pengguna mungkin memiliki hak cipta atas karya seni dan dapat menetapkan lisensi apa pun, jika karya yang dihasilkan tidak dianggap sebagai "data turunan".
Dengan mendownload dan menggunakan data, pengguna menyetujui persyaratan dan ketentuan lisensi. Terlepas dari lisensi gratis ini, kami meminta pengguna untuk
tidak mendistribusikan ulang data secara keseluruhan dalam format aslinya di situs
lain tanpa izin tertulis eksplisit dari penulis.
Hak cipta MERIT Hydro dipegang oleh developer, 2019, semua hak dilindungi undang-undang.
Kutipan
Kutipan:
Yamazaki D., D. Ikeshima, J. Sosa, P.D. Bates, G.H. Allen, T.M. Pavelsky.
MERIT Hydro: Peta hidrografi global beresolusi tinggi berdasarkan kumpulan data topografi terbaru
Water Resources Research, vol.55, hlm.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)"]]
