MOD11A2.061 Terra Land Surface Temperature and Emissivity 8-Day Global 1km

Dataset Availability: 2000-02-18T00:00:00Z–2024-12-02T00:00:00Z
Dataset Provider: NASA LP DAAC at the USGS EROS Center
Earth Engine Snippet: ee.ImageCollection("MODIS/061/MOD11A2")

Cadence: 8 Days
Tags: 8-day emissivity global lst mod11a2 modis nasa surface-temperature terra usgs

Description

The 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 LST values, without any filtering for specific QA bits. Each of the MOD11A2 QA values are set based on what majority of input daily QA values are for any given pixel.

The 8 day compositing period was chosen because twice that period is the exact ground track repeat period of the Terra and Aqua platforms. In this product, along with both the day- and night-time surface temperature bands and their quality indicator (QC) layers, are also MODIS bands 31 and 32 and eight observation layers.

Documentation:

Bands

Resolution
1000 meters

Bands

Name	Units	Min	Max	Scale	Offset	Description
`LST_Day_1km`	K	7500	65535	0.02		Day land surface temperature
`QC_Day`						Daytime LST quality indicators
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 <= 0.01 1: Average emissivity error <= 0.02 2: Average emissivity error <= 0.04 3: Average emissivity error > 0.04 Bits 6-7: LST error flag 0: Average LST error <= 1K 1: Average LST error <= 2K 2: Average LST error <= 3K 3: Average LST error > 3K
`Day_view_time`	h	0	240	0.1		Local time of day observation
`Day_view_angl`	deg	0	130		-65	View zenith angle of day observation
`LST_Night_1km`	K	7500	65635	0.02		Night land surface temperature
`QC_Night`						Nighttime LST quality indicators
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 <= 0.01 1: Average emissivity error <= 0.02 2: Average emissivity error <= 0.04 3: Average emissivity error > 0.04 Bits 6-7: LST error flag 0: Average LST error <= 1K 1: Average LST error <= 2K 2: Average LST error <= 3K 3: Average LST error > 3K
`Night_view_time`	h	0	240	0.1		Local time of night observation
`Night_view_angl`	deg	0	130		-65	View zenith angle of night observation
`Emis_31`		1	255	0.002	0.49	Band 31 emissivity
`Emis_32`		1	255	0.002	0.49	Band 32 emissivity
`Clear_sky_days`						Days in clear-sky conditions
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
`Clear_sky_nights`						Nights in clear-sky conditions
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

Terms of Use

Terms of Use

MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.

Citations

Please visit LP DAAC 'Citing Our Data' page for information on citing LP DAAC datasets.

DOIs

https://doi.org/10.5067/MODIS/MOD11A2.061

Explore with Earth Engine

Code Editor (JavaScript)

var dataset = ee.ImageCollection('MODIS/061/MOD11A2')
                  .filter(ee.Filter.date('2018-01-01', '2018-05-01'));
var landSurfaceTemperature = dataset.select('LST_Day_1km');
var landSurfaceTemperatureVis = {
  min: 14000.0,
  max: 16000.0,
  palette: [
    '040274', '040281', '0502a3', '0502b8', '0502ce', '0502e6',
    '0602ff', '235cb1', '307ef3', '269db1', '30c8e2', '32d3ef',
    '3be285', '3ff38f', '86e26f', '3ae237', 'b5e22e', 'd6e21f',
    'fff705', 'ffd611', 'ffb613', 'ff8b13', 'ff6e08', 'ff500d',
    'ff0000', 'de0101', 'c21301', 'a71001', '911003'
  ],
};
Map.setCenter(6.746, 46.529, 2);
Map.addLayer(
    landSurfaceTemperature, landSurfaceTemperatureVis,
    'Land Surface Temperature');

Open in Code Editor

MOD11A2.061 Terra Land Surface Temperature and Emissivity 8-Day Global 1km

MODIS/061/MOD11A2, 8-day,emissivity,global,lst,mod11a2,modis,nasa,surface-temperature,terra,usgs

2000-02-18T00:00:00Z/2024-12-02T00:00:00Z

Google Earth Engine

https://developers.google.com/earth-engine/datasets

https://doi.org/10.5067/MODIS/MOD11A2.061