MOD10A2 adalah set data tutupan salju dari MODIS di satelit Terra.
Set data melaporkan luas maksimum tutupan salju selama periode delapan hari pada resolusi 500 m.
Periode komposit delapan hari dipilih karena merupakan periode pengulangan jalur darat yang persis sama dengan platform Terra dan Aqua. Cakupan salju selama delapan hari dipetakan sebagai cakupan salju maksimum dalam satu SDS dan sebagai kronologi pengamatan dalam SDS lainnya. Periode delapan hari dimulai pada hari pertama
tahun dan berlanjut hingga tahun berikutnya. Produk dapat dibuat dengan input selama dua hingga delapan hari. Input mungkin tidak selalu ada selama delapan hari,
karena berbagai alasan, jadi pengguna harus memeriksa atribut untuk
menentukan pada hari apa pengamatan dilakukan.
Luas salju maksimum yang diamati selama periode delapan hari.
Eight_Day_Snow_Cover
meter
Bit flag kronologi salju untuk setiap hari dalam periode pengamatan delapan hari.
Bitmask untuk Eight_Day_Snow_Cover
Bit 0: hari ke-1
Bit 1: hari 2
Bit 2: hari ke-3
Bit 3: hari ke-4
Bit 4: hari ke-5
Bit 5: hari ke-6
Bit 6: hari ke-7
Bit 7: hari ke-8
Tabel Kelas Luas Maksimum Salju
Nilai
Warna
Deskripsi
0
Tidak ada
Data tidak ada
1
Tidak ada
Belum ada keputusan
11
Tidak ada
Malam
25
Tidak ada
Tidak ada salju
37
Tidak ada
Danau
39
Tidak ada
Samudra
50
Tidak ada
Cloud
100
Tidak ada
Es danau
200
Tidak ada
Salju
254
Tidak ada
Detektor jenuh
Persyaratan Penggunaan
Persyaratan Penggunaan
Anda dapat mendownload dan menggunakan foto, gambar, atau teks dari situs NSIDC, kecuali jika batasan penggunaannya dinyatakan secara khusus. Untuk mengetahui informasi selengkapnya tentang penggunaan dan mengutip set data NSIDC, buka
halaman 'Penggunaan dan Hak Cipta' NSIDC.
Kutipan
Kutipan:
Hall, D. K., V. V. Salomonson, dan G. A. Riggs. 2016. MODIS/Terra
Snow Cover Daily L3 Global 500m Grid. Versi 6. Boulder, Colorado
Amerika Serikat: NASA National Snow and Ice Data Center Distributed Active
Archive Center.
MOD10A2 adalah set data tutupan salju dari MODIS di satelit Terra. Set data melaporkan luas maksimum tutupan salju selama periode delapan hari pada resolusi 500 m. Periode komposit delapan hari dipilih karena merupakan periode pengulangan jalur darat yang tepat dari Terra dan …
[null,null,[],[[["\u003cp\u003eThe MOD10A2 dataset provides information on snow cover, collected by the MODIS sensor on the Terra satellite, spanning from February 18, 2000, to January 25, 2025.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset reports the maximum snow cover extent over eight-day periods at a 500-meter resolution, with data provided by NASA NSIDC DAAC at CIRES.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes the maximum snow extent observed over eight days, and a snow chronology bitmask, both of which use specific value ranges to represent no snow, cloud cover, or snow.\u003c/p\u003e\n"],["\u003cp\u003eThe data is collected daily, and the eight day collection period is chosen to match the exact ground track of the Terra and Aqua platforms.\u003c/p\u003e\n"],["\u003cp\u003eUsers can access and analyze the dataset using Google Earth Engine, which is free for research, education, and nonprofit purposes, and can be registered to gain access.\u003c/p\u003e\n"]]],[],null,["# MOD10A2.061 Terra Snow Cover 8-Day L3 Global 500m\n\nDataset Availability\n: 2000-02-18T00:00:00Z--2025-08-05T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA NSIDC DAAC at CIRES](https://doi.org/10.5067/MODIS/MOD10A2.061)\n\nCadence\n: 1 Day\n\nTags\n:\n[cryosphere](/earth-engine/datasets/tags/cryosphere) [daily](/earth-engine/datasets/tags/daily) [geophysical](/earth-engine/datasets/tags/geophysical) [global](/earth-engine/datasets/tags/global) [modis](/earth-engine/datasets/tags/modis) [nasa](/earth-engine/datasets/tags/nasa) [nsidc](/earth-engine/datasets/tags/nsidc) [snow](/earth-engine/datasets/tags/snow) [terra](/earth-engine/datasets/tags/terra) \n\n#### Description\n\nMOD10A2 is a snow cover dataset from the MODIS on the Terra satellite.\nThe dataset reports the maximum snow cover extent during an eight-day\nperiod at the resolution of 500 m.\n\nAn eight-day compositing period was chosen because that is the exact ground\ntrack repeat period of the Terra and Aqua platforms. Snow cover over eight\ndays is mapped as maximum snow extent in one SDS and as a chronology of\nobservations in the other SDS. Eight-day periods begin on the first day of\nthe year and extend into the next year. The product can be produced with\ntwo to eight days of input. There may not always be eight days of input,\nbecause of various reasons, so the user should check the attributes to\ndetermine on what days observations were obtained.\n\n- [General documentation](https://doi.org/10.5067/MODIS/MOD10A2.061)\n- [User's Guide](https://modis-snow-ice.gsfc.nasa.gov/uploads/snow_user_guide_C6.1_final_revised_april.pdf),\n\n### Bands\n\n\n**Pixel Size**\n\n500 meters\n\n**Bands**\n\n| Name | Min | Max | Pixel Size | Description |\n|------------------------|-----|-----|------------|-----------------------------------------------------------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `Maximum_Snow_Extent` | 0 | 255 | meters | Maximum snow extent observed over an eight-day period. |\n| `Eight_Day_Snow_Cover` | | | meters | Snow chronology bit flags for each day in the eight-day observation period. |\n| Bitmask for Eight_Day_Snow_Cover - Bit 0: day 1 - Bit 1: day 2 - Bit 2: day 3 - Bit 3: day 4 - Bit 4: day 5 - Bit 5: day 6 - Bit 6: day 7 - Bit 7: day 8 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n\n**Maximum_Snow_Extent Class Table**\n\n| Value | Color | Description |\n|-------|-------|--------------------|\n| 0 | None | Missing data |\n| 1 | None | No decision |\n| 11 | None | Night |\n| 25 | None | No snow |\n| 37 | None | Lake |\n| 39 | None | Ocean |\n| 50 | None | Cloud |\n| 100 | None | Lake ice |\n| 200 | None | Snow |\n| 254 | None | Detector saturated |\n\n### Terms of Use\n\n**Terms of Use**\n\nYou may download and use photographs, imagery, or text\nfrom the NSIDC web site, unless limitations for its use are specifically\nstated. For more information on usage and citing NSIDC datasets,\nplease visit the\n[NSIDC 'Use and Copyright' page](https://nsidc.org/about/data-use-and-copyright).\n\n### Citations\n\nCitations:\n\n- Hall, D. K., V. V. Salomonson, and G. A. Riggs. 2016. MODIS/Terra\n Snow Cover Daily L3 Global 500m Grid. Version 6. Boulder, Colorado\n USA: NASA National Snow and Ice Data Center Distributed Active\n Archive Center.\n\n### DOIs\n\n- \u003chttps://doi.org/10.5067/MODIS/MOD10A1.061\u003e\n- \u003chttps://doi.org/10.5067/MODIS/MOD10A2.061\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('MODIS/061/MOD10A2')\n .filter(ee.Filter.date('2023-01-01', '2023-12-01'))\n .select('Maximum_Snow_Extent');\n\nvar visualization = {\n min: 50.0,\n max: 200.0,\n palette: [\n '000000',\n '0dffff',\n '0524ff',\n 'ffffff'\n ]\n};\n\n\nMap.setCenter(-3.69, 65.99, 4);\n\nMap.addLayer(dataset.mean(), visualization, 'Maximum_Snow_Extent');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_061_MOD10A2) \n[MOD10A2.061 Terra Snow Cover 8-Day L3 Global 500m](/earth-engine/datasets/catalog/MODIS_061_MOD10A2) \nMOD10A2 is a snow cover dataset from the MODIS on the Terra satellite. The dataset reports the maximum snow cover extent during an eight-day period at the resolution of 500 m. An eight-day compositing period was chosen because that is the exact ground track repeat period of the Terra and ... \nMODIS/061/MOD10A2, cryosphere,daily,geophysical,global,modis,nasa,nsidc,snow,terra \n2000-02-18T00:00:00Z/2025-08-05T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/MODIS/MOD10A2.061](https://doi.org/https://doi.org/10.5067/MODIS/MOD10A2.061)\n- [https://doi.org/10.5067/MODIS/MOD10A2.061](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_061_MOD10A2)"]]
