Продукт MOD11A2 V6.1 предоставляет данные о средней температуре поверхности земли (LST) за 8 дней в сетке 1200 x 1200 километров. Значение каждого пикселя в MOD11A2 представляет собой простое среднее значение всех соответствующих пикселей MOD11A1 LST, собранных за этот 8-дневный период. MOD11A2 выполняет простое усреднение всех ежедневных значений LST без фильтрации по конкретным битам QA. Каждое значение QA MOD11A2 устанавливается на основе того, какое большинство входных ежедневных значений QA приходится на данный пиксель.
Восьмидневный период компоновки был выбран, поскольку он вдвое превышает период повторения траекторий движения платформ Terra и Aqua. В этом продукте, помимо дневных и ночных диапазонов температуры поверхности и их слоёв индикаторов качества (QC), также представлены каналы MODIS 31 и 32 и восемь слоёв наблюдений.
Продукт MOD11A2 V6.1 предоставляет данные о средней температуре поверхности земли (LST) за 8 дней в сетке 1200 x 1200 километров. Значение каждого пикселя в MOD11A2 представляет собой простое среднее значение всех соответствующих пикселей MOD11A1 LST, собранных за этот 8-дневный период. MOD11A2 выполняет простое усреднение всех ежедневных…
[null,null,[],[[["\u003cp\u003eMOD11A2 V6.1 provides an 8-day average land surface temperature (LST) globally at a 1km resolution.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes day and night LST, quality indicators, emissivity, and observation view time/angle.\u003c/p\u003e\n"],["\u003cp\u003eData is derived from the MODIS instrument on the Terra satellite and composited over 8-day periods.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset covers the period from February 18, 2000, to November 24, 2024.\u003c/p\u003e\n"],["\u003cp\u003eIt is freely available for use, with attribution to NASA LP DAAC at the USGS EROS Center.\u003c/p\u003e\n"]]],["The MOD11A2 V6.1 dataset from NASA LP DAAC/USGS EROS Center offers 8-day average land surface temperature (LST) data in a 1200x1200 km grid, from 2000-02-18 to 2025-02-10. It averages daily MOD11A1 LST pixels without filtering. The data includes day and night surface temperatures, quality indicators, emissivity bands (31 and 32), and observation layers, at 1000-meter pixel size. Accessible via Google Earth Engine using the provided snippet.\n"],null,["Dataset Availability\n: 2000-02-18T00:00:00Z--2025-08-21T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA LP DAAC at the USGS EROS Center](https://doi.org/10.5067/MODIS/MOD11A2.061)\n\nCadence\n: 8 Days\n\nTags\n:\n[8-day](/earth-engine/datasets/tags/8-day) [climate](/earth-engine/datasets/tags/climate) [emissivity](/earth-engine/datasets/tags/emissivity) [global](/earth-engine/datasets/tags/global) [lst](/earth-engine/datasets/tags/lst) [mod11a2](/earth-engine/datasets/tags/mod11a2) [modis](/earth-engine/datasets/tags/modis) [nasa](/earth-engine/datasets/tags/nasa) [surface-temperature](/earth-engine/datasets/tags/surface-temperature) [terra](/earth-engine/datasets/tags/terra) [usgs](/earth-engine/datasets/tags/usgs) \n\nDescription \nThe MOD11A2 V6.1 product provides an average 8-day land surface temperature\n(LST) in a 1200 x 1200 kilometer grid. Each pixel value in MOD11A2 is a\nsimple average of all the corresponding MOD11A1 LST pixels collected within\nthat 8 day period. The MOD11A2 does a simple averaging of all daily LST\nvalues, without any filtering for specific QA bits. Each of the MOD11A2 QA\nvalues are set based on what majority of input daily QA values are for any\ngiven pixel.\n\nThe 8 day compositing period was chosen because twice that period is the\nexact ground track repeat period of the Terra and Aqua platforms. In this\nproduct, along with both the day- and night-time surface temperature bands\nand their quality indicator (QC) layers, are also MODIS bands 31 and 32 and\neight observation layers.\n\nDocumentation:\n\n- [User's Guide](https://lpdaac.usgs.gov/documents/118/MOD11_User_Guide_V6.pdf)\n\n- [Algorithm Theoretical Basis Document (ATBD)](https://lpdaac.usgs.gov/documents/119/MOD11_ATBD.pdf)\n\n- [General Documentation](https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/61/MOD11A2)\n\nBands\n\n\n**Pixel Size**\n\n1000 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Scale | Offset | Pixel Size | Description |\n|--------------------|-------|------|-------|-------|--------|------------|----------------------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `LST_Day_1km` | K | 7500 | 65535 | 0.02 | | meters | Day land surface temperature |\n| `QC_Day` | | | | | | meters | Daytime LST quality indicators |\n| Bitmask for QC_Day - Bits 0-1: Mandatory QA flags - 0: Pixel produced, good quality, not necessary to examine more detailed QA - 1: Pixel produced, unreliable or unquantifiable quality, recommend examination of more detailed QA - 2: Pixel not produced due to cloud effects - 3: Pixel not produced primarily due to reasons other than cloud (such as ocean pixel, poor input data) - Bits 2-3: Data quality flag - 0: Good data quality - 1: Other quality data - 2: TBD - 3: TBD - Bits 4-5: Emissivity error flag - 0: Average emissivity error \\\u003c= 0.01 - 1: Average emissivity error \\\u003c= 0.02 - 2: Average emissivity error \\\u003c= 0.04 - 3: Average emissivity error \\\u003e 0.04 - Bits 6-7: LST error flag - 0: Average LST error \\\u003c= 1K - 1: Average LST error \\\u003c= 2K - 2: Average LST error \\\u003c= 3K - 3: Average LST error \\\u003e 3K ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n| `Day_view_time` | h | 0 | 240 | 0.1 | | meters | Local time of day observation |\n| `Day_view_angl` | deg | 0 | 130 | | -65 | meters | View zenith angle of day observation |\n| `LST_Night_1km` | K | 7500 | 65635 | 0.02 | | meters | Night land surface temperature |\n| `QC_Night` | | | | | | meters | Nighttime LST quality indicators |\n| Bitmask for QC_Night - Bits 0-1: Mandatory QA flags - 0: Pixel produced, good quality, not necessary to examine more detailed QA - 1: Pixel produced, unreliable or unquantifiable quality, recommend examination of more detailed QA - 2: Pixel not produced due to cloud effects - 3: Pixel not produced primarily due to reasons other than cloud (such as ocean pixel, poor input data) - Bits 2-3: Data quality flag - 0: Good data quality - 1: Other quality data - 2: TBD - 3: TBD - Bits 4-5: Emissivity error flag - 0: Average emissivity error \\\u003c= 0.01 - 1: Average emissivity error \\\u003c= 0.02 - 2: Average emissivity error \\\u003c= 0.04 - 3: Average emissivity error \\\u003e 0.04 - Bits 6-7: LST error flag - 0: Average LST error \\\u003c= 1K - 1: Average LST error \\\u003c= 2K - 2: Average LST error \\\u003c= 3K - 3: Average LST error \\\u003e 3K ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n| `Night_view_time` | h | 0 | 240 | 0.1 | | meters | Local time of night observation |\n| `Night_view_angl` | deg | 0 | 130 | | -65 | meters | View zenith angle of night observation |\n| `Emis_31` | | 1 | 255 | 0.002 | 0.49 | meters | Band 31 emissivity |\n| `Emis_32` | | 1 | 255 | 0.002 | 0.49 | meters | Band 32 emissivity |\n| `Clear_sky_days` | | | | | | meters | Days in clear-sky conditions |\n| Bitmask for Clear_sky_days - Bit 0: Day 1 clear sky flag - 0: Day 1 is not clear-sky - 1: Day 1 is clear-sky - Bit 1: Day 2 clear sky flag - 0: Day 2 is not clear-sky - 1: Day 2 is clear-sky - Bit 2: Day 3 clear sky flag - 0: Day 3 is not clear-sky - 1: Day 3 is clear-sky - Bit 3: Day 4 clear sky flag - 0: Day 4 is not clear-sky - 1: Day 4 is clear-sky - Bit 4: Day 5 clear sky flag - 0: Day 5 is not clear-sky - 1: Day 5 is clear-sky - Bit 5: Day 6 clear sky flag - 0: Day 6 is not clear-sky - 1: Day 6 is clear-sky - Bit 6: Day 7 clear sky flag - 0: Day 7 is not clear-sky - 1: Day 7 is clear-sky - Bit 7: Day 8 clear sky flag - 0: Day 8 is not clear-sky - 1: Day 8 is clear-sky ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n| `Clear_sky_nights` | | | | | | meters | Nights in clear-sky conditions |\n| Bitmask for Clear_sky_nights - Bit 0: Night 1 clear sky flag - 0: Night 1 is not clear-sky - 1: Night 1 is clear-sky - Bit 1: Night 2 clear sky flag - 0: Night 2 is not clear-sky - 1: Night 2 is clear-sky - Bit 2: Night 3 clear sky flag - 0: Night 3 is not clear-sky - 1: Night 3 is clear-sky - Bit 3: Night 4 clear sky flag - 0: Night 4 is not clear-sky - 1: Night 4 is clear-sky - Bit 4: Night 5 clear sky flag - 0: Night 5 is not clear-sky - 1: Night 5 is clear-sky - Bit 5: Night 6 clear sky flag - 0: Night 6 is not clear-sky - 1: Night 6 is clear-sky - Bit 6: Night 7 clear sky flag - 0: Night 7 is not clear-sky - 1: Night 7 is clear-sky - Bit 7: Night 8 clear sky flag - 0: Night 8 is not clear-sky - 1: Night 8 is clear-sky ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n\nTerms of Use\n\n**Terms of Use**\n\nMODIS data and products acquired through the LP DAAC\nhave no restrictions on subsequent use, sale, or redistribution.\n\nCitations \nCitations:\n\n- Please visit [LP DAAC 'Citing Our Data' page](https://lpdaac.usgs.gov/citing_our_data)\n for information on citing LP DAAC datasets.\n\nDOIs\n\n- \u003chttps://doi.org/10.5067/MODIS/MOD11A2.061\u003e\n\nExplore with Earth Engine **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\nCode Editor (JavaScript) \n\n```javascript\nvar dataset = ee.ImageCollection('MODIS/061/MOD11A2')\n .filter(ee.Filter.date('2018-01-01', '2018-05-01'));\nvar landSurfaceTemperature = dataset.select('LST_Day_1km');\nvar landSurfaceTemperatureVis = {\n min: 14000.0,\n max: 16000.0,\n palette: [\n '040274', '040281', '0502a3', '0502b8', '0502ce', '0502e6',\n '0602ff', '235cb1', '307ef3', '269db1', '30c8e2', '32d3ef',\n '3be285', '3ff38f', '86e26f', '3ae237', 'b5e22e', 'd6e21f',\n 'fff705', 'ffd611', 'ffb613', 'ff8b13', 'ff6e08', 'ff500d',\n 'ff0000', 'de0101', 'c21301', 'a71001', '911003'\n ],\n};\nMap.setCenter(6.746, 46.529, 2);\nMap.addLayer(\n landSurfaceTemperature, landSurfaceTemperatureVis,\n 'Land Surface Temperature');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_061_MOD11A2) \n[MOD11A2.061 Terra Land Surface Temperature and Emissivity 8-Day Global 1km](/earth-engine/datasets/catalog/MODIS_061_MOD11A2) \nThe MOD11A2 V6.1 product provides an average 8-day land surface temperature (LST) in a 1200 x 1200 kilometer grid. Each pixel value in MOD11A2 is a simple average of all the corresponding MOD11A1 LST pixels collected within that 8 day period. The MOD11A2 does a simple averaging of all daily ... \nMODIS/061/MOD11A2, 8-day,climate,emissivity,global,lst,mod11a2,modis,nasa,surface-temperature,terra,usgs \n2000-02-18T00:00:00Z/2025-08-21T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/MODIS/MOD11A2.061](https://doi.org/https://doi.org/10.5067/MODIS/MOD11A2.061)\n- [https://doi.org/10.5067/MODIS/MOD11A2.061](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_061_MOD11A2)"]]
