HLSL30: HLS-2 Landsat Operational Land Imager Surface Reflectance and TOA Brightness Daily Global 30m

Dataset Availability: 2013-04-11T00:00:00Z–2024-12-19T23:58:30Z
Dataset Provider: NASA LP DAAC
Earth Engine Snippet: ee.ImageCollection("NASA/HLS/HLSL30/v002")

Tags: landsat nasa sentinel usgs

Description

The Harmonized Landsat Sentinel-2 (HLS) project provides consistent surface reflectance (SR) and top of atmosphere (TOA) brightness data from a virtual constellation of satellite sensors. The Operational Land Imager (OLI) is housed aboard the joint NASA/USGS Landsat 8 and Landsat 9 satellites, while the Multi-Spectral Instrument (MSI) is mounted aboard Europe's Copernicus Sentinel-2A and Sentinel-2B satellites. The combined measurement enables global observations of the land every 2 to 3 days at 30m spatial resolution. The HLS project uses a set of algorithms to obtain seamless products from OLI and MSI that include atmospheric correction, cloud and cloud-shadow masking, spatial co-registration and common gridding, illumination and view angle normalization, and spectral bandpass adjustment.

The HLS project distributes data as two separate products: HLSL30 (Landsat 8/9) and HLSS30 (Sentinel-2 A/B). They both provide 30m Nadir Bidirectional Reflectance Distribution Function (BRDF), Adjusted Reflectance (NBAR).

Documentation:

User's Guide
Algorithm Theoretical Basis Document (ATBD)
General Documentation
S30 catalog link: NASA/HLS/HLSS30/v002

Bands

Resolution
30 meters

Bands

Name	Units	Description
`B1`		Coastal Aerosol
`B2`		Blue
`B3`		Green
`B4`		Red
`B5`		NIR
`B6`		SWIR1
`B7`		SWIR2
`B9`		Cirrus
`B10`		TIRS1
`B11`		TIRS2
`Fmask`		Quality Bits
Bitmask for Fmask Bit 0: Cirrus 0: Reserved but not used 1: Reserved but not used Bit 1: Cloud 0: No 1: Yes Bit 2: Adjacent to cloud/shadow 0: No 1: Yes Bit 3: Cloud shadow 0: No 1: Yes Bit 4: Snow/ice 0: No 1: Yes Bit 5: Water 0: No 1: Yes Bits 6-7: Aerosol level 0: Climatology aerosol 1: Low aerosol 2: Moderate aerosol 3: High aerosol
`SZA`	deg	Sun Zenith Angle
`SAA`	deg	Sun Azimuth Angle
`VZA`	deg	View Zenith Angle
`VAA`	deg	View Azimuth Angle

Image Properties

Image Properties

Name	Type	Description
ACCODE	STRING	LaSRC version, e.g. LaSRCS2AV3.5.5 or LaSRCL8V3.5.5
LANDSAT_PRODUCT_ID	STRING	The Landsat-8 input L1 scene product ID for processing backtracing.
TIRS_SSM_MODEL	STRING	TIRS SSM encoder position model (Preliminary, Final or Actual).
TIRS_SSM_POSITION_STATUS	STRING	L30
USGS_SOFTWARE	STRING	LPGS_2.6.2
CLOUD_COVERAGE	DOUBLE	The percentage of cloud and cloud shadow in observation based on Fmask
HLS_PROCESSING_TIME	STRING	The date and time of HLS processing for this observation
MEAN_SUN_AZIMUTH_ANGLE	DOUBLE	Mean Sun Azimuth Angle in degree of the input data for HLS L30
MEAN_SUN_ZENITH_ANGLE	DOUBLE	Mean Sun Zenith Angle in degree of the input data for HLS L30
MEAN_VIEW_AZIMUTH_ANGLE	DOUBLE	Mean View Azimuth Angle in degree of the input data
MEAN_VIEW_ZENITH_ANGLE	DOUBLE	Mean View Zenith Angle in degree of the input data
NBAR_SOLAR_ZENITH	DOUBLE	The solar zenith angle used in NBAR derivation
SPATIAL_COVERAGE	DOUBLE	The percentage of the tile with data

Terms of Use

Terms of Use

NASA promotes the full and open sharing of all data with research and applications communities, private industry, academia, and the general public.

Citations

Masek, J., Ju, J., Roger, J., Skakun, S., Vermote, E., Claverie, M., Dungan, J., Yin, Z., Freitag, B., Justice, C. (2021). HLS Operational Land Imager Surface Reflectance and TOA Brightness Daily Global 30m v2.0 [Data set]. NASA EOSDIS Land Processes Distributed Active Archive Center. Accessed 2023-09-12 from https://doi.org/10.5067/HLS/HLSL30.002

DOIs

https://doi.org/10.5067/HLS/HLSL30.002

Explore with Earth Engine

Code Editor (JavaScript)

var collection = ee.ImageCollection("NASA/HLS/HLSL30/v002")
                    .filter(ee.Filter.date('2013-04-25', '2013-04-28'))
                    .filter(ee.Filter.lt('CLOUD_COVERAGE', 30));
var visParams = {
  bands: ['B4', 'B3', 'B2'],
  min:0.01,
  max:0.18,
};

var visualizeImage = function(image) {
  var imageRGB = image.visualize(visParams);
  return imageRGB;
};

var rgbCollection = collection.map(visualizeImage);

Map.setCenter(-60.1765, -22.5318, 11)
Map.addLayer(rgbCollection, {}, 'HLS RGB bands');

Open in Code Editor

HLSL30: HLS-2 Landsat Operational Land Imager Surface Reflectance and TOA Brightness Daily Global 30m

NASA/HLS/HLSL30/v002, landsat,nasa,sentinel,usgs

2013-04-11T00:00:00Z/2024-12-19T23:58:30Z

Google Earth Engine

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

https://doi.org/10.5067/HLS/HLSL30.002