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Daily Products
MCD43A4.061 MODIS Nadir BRDF-Adjusted Reflectance Daily 500m
The MCD43A4 V6.1 Nadir Bidirectional Reflectance Distribution Function
Adjusted Reflectance (NBAR) product provides 500 meter reflectance data
of the MODIS "land" bands 1-7. These are adjusted using a bidirectional
reflectance distribution function to model the values as if they were
collected from a nadir view. The data are produced daily based on a
16-day retrieval period, with the image's date occurring on the 9th day.
This product combines data from both the Terra and Aqua spacecrafts,
choosing the best representative pixel from the 16-day period.
The MCD43A3 V6.1 Albedo Model dataset is a daily 16-day product. It
provides both directional hemispherical reflectance (black sky albedo)
and bihemispherical reflectance (white sky albedo) for each of the MODIS
surface reflectance bands (band 1 through band 7) as well as 3 broad
spectrum bands (visible, near infrared, and shortwave). Each 500m/pixel
daily image is generated using 16 days of data, centered on the given
day. A quality band is also provided for each of the 10 albedo bands.
The MCD43A2 V6.1 Bidirectional Reflectance Distribution Function and
Albedo (BRDF/Albedo) Quality dataset is a 500 meter daily 16-day
product. It contains all the quality information for the corresponding
16-day MCD43A3 Albedo and the MCD43A4 Nadir-BRDF (NBAR) products. The
MCD43A2 contains individual band quality and observation information for
the MODIS land bands 1-7, along with the overall BRDF/Albedo quality
information.
MOD09GQ.061 Terra Surface Reflectance Daily Global 250m
The MODIS Surface Reflectance products provide an estimate of the
surface spectral reflectance as it would be measured at ground level in
the absence of atmospheric scattering or absorption. Low-level data are
corrected for atmospheric gases and aerosols. MOD09GQ version 6.1
provides bands 1 and 2 at a 250m resolution in a daily gridded L2G
product in the Sinusoidal projection, including a QC and five
observation layers. This product is meant to be used in conjunction with
the MOD09GA where important quality and viewing geometry information is
stored.
The MOD10A1 V6.1 Snow Cover Daily Global 500m product contains snow
cover, snow albedo, fractional snow cover, and quality assessment (QA)
data. Snow cover data are based on a snow mapping algorithm that employs
a Normalized Difference Snow Index (NDSI) and other criteria tests.
MOD11A1.061 Terra Land Surface Temperature and Emissivity Daily Global
1km
The MOD11A1 V6.1 product provides daily land surface temperature (LST)
and emissivity values in a 1200 x 1200 kilometer grid. The temperature
value is derived from the MOD11_L2 swath product. Above 30 degrees
latitude, some pixels may have multiple observations where the criteria
for clear-sky are met. When this occurs, the pixel value is the average
of all qualifying observations. Provided along with both the day-time
and night-time surface temperature bands and their quality indicator
layers are MODIS bands 31 and 32 and six observation layers.
MOD09GA.061 Terra Surface Reflectance Daily Global 1km and 500m
The MODIS Surface Reflectance products provide an estimate of the
surface spectral reflectance as it would be measured at ground level in
the absence of atmospheric scattering or absorption. Low-level data are
corrected for atmospheric gases and aerosols. MOD09GA version 6.1
provides bands 1-7 in a daily gridded L2G product in the sinusoidal
projection, including 500m reflectance values and 1km observation and
geolocation statistics.
MOD14A1.061: Terra Thermal Anomalies & Fire Daily Global 1km
The MOD14A1 V6.1 dataset provides daily fire mask composites at 1km
resolution derived from the MODIS 4- and 11-micrometer radiances. The
fire detection strategy is based on absolute detection of a fire (when
the fire strength is sufficient to detect), and on detection relative to
its background (to account for variability of the surface temperature
and reflection by sunlight). The product distinguishes between fire, no
fire and no observation. This information is used for monitoring the
spatial and temporal distribution of fires in different ecosystems,
detecting changes in fire distribution and identifying new fire
frontiers, wild fires, and changes in the frequency of the fires or
their relative strength.
MCD19A1.061 Land Surface BRF Daily L2G Global 500m and 1km SIN Grid
The MCD19A1 Version 6.1 data product is a Moderate Resolution Imaging
Spectroradiometer (MODIS) Terra and Aqua combined Land Surface
Bidirectional Reflectance Factor (BRF) gridded Level 2 product produced
daily at 500 meter and 1 kilometer pixel resolutions.
MCD43A1.061 MODIS BRDF-Albedo Model Parameters Daily 500m
The MCD43A1 V6.1 Bidirectional Reflectance Distribution Function and
Albedo (BRDF/Albedo) Model Parameters dataset is a 500 meter daily
16-day product. The Julian date represents the 9th day of the 16-day
retrieval period, and consequently the observations are weighted to
estimate the BRDF/Albedo for that day. The MCD43A1 algorithm, as is with
all combined products, chooses the best representative pixel from a pool
that includes all the acquisitions from both the Terra and Aqua sensors
from the retrieval period. The MCD43A1 provides the three model
weighting parameters (isotropic, volumetric, and geometric) for each of
the MODIS bands 1 through 7 and the visible (vis), near infrared (nir),
and shortwave bands used to derive the Albedo and BRDF products (MCD43A3
and MCD43A4). The Mandatory Quality layers for each of the 10 bands are
supplied as well.
MCD15A3H.061 MODIS Leaf Area Index/FPAR 4-Day Global 500m
The MCD15A3H V6.1 level 4, Combined Fraction of Photosynthetically
Active Radiation (FPAR), and Leaf Area Index (LAI) product is a 4-day
composite data set with 500 meter pixel size. The algorithm chooses the
"best" pixel available from all the acquisitions of both MODIS sensors
located on NASA's Terra and Aqua satellites from within the 4-day
period.
MOD09Q1.061 Terra Surface Reflectance 8-Day Global 250m
The MOD09Q1 product provides an estimate of the surface spectral
reflectance of bands 1 and 2 at 250m resolution and corrected for
atmospheric conditions such as gasses, aerosols, and Rayleigh
scattering. Along with the two reflectance bands, a quality layer is
also included. For each pixel, a value is selected from all the
acquisitions within the 8-day composite on the basis of high observation
coverage, low view angle, the absence of clouds or cloud shadow, and
aerosol loading.
MOD09A1.061 Terra Surface Reflectance 8-Day Global 500m
The MOD09A1 V6.1 product provides an estimate of the surface spectral
reflectance of Terra MODIS bands 1-7 at 500m resolution and corrected
for atmospheric conditions such as gasses, aerosols, and Rayleigh
scattering. Along with the seven reflectance bands is a quality layer
and four observation bands. For each pixel, a value is selected from all
the acquisitions within the 8-day composite on the basis of high
observation coverage, low view angle, the absence of clouds or cloud
shadow, and aerosol loading.
MOD11A2.061 Terra Land Surface Temperature and Emissivity 8-Day Global
1km
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 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.
MOD14A2.061: Terra Thermal Anomalies & Fire 8-Day Global 1km
The MOD14A2 V6.1 dataset provides 8-day fire mask composites at 1km
resolution. It contains the maximum value of the individual pixel
classes over the compositing period. Along with the fire mask, an
associated quality information layer is also provided.
MOD17A2H.061: Terra Gross Primary Productivity 8-Day Global 500m
The MOD17A2H V6.1 Gross Primary Productivity (GPP) product is a
cumulative 8-day composite with a 500m resolution. The product is based
on the radiation-use efficiency concept and can be potentially used as
inputs to data models to calculate terrestrial energy, carbon, water
cycle processes, and biogeochemistry of vegetation.
MOD16A2.061: Terra Net Evapotranspiration 8-Day Global 500m
The MOD16A2 version 6.1 Evapotranspiration/Latent Heat Flux product is
an 8-day composite product produced at 500 meter pixel resolution. The
algorithm used for the MOD16 data product collection is based on the
logic of the Penman-Monteith equation, which includes inputs of daily
meteorological reanalysis data along with MODIS remotely sensed data
products such as vegetation property dynamics, albedo, and land cover.
The pixel values for the two Evapotranspiration layers (ET & PET) are
the sum of all eight days within the composite period. The pixel values
for the two Latent Heat layers (LE & PLE) are the average of all eight
days within the composite period. Note that the last 8-day period of
each year is a 5 or 6-day composite period, depending on the year.
MOD13Q1.061 Terra Vegetation Indices 16-Day Global 250m
The MOD13Q1 V6.1 product provides a Vegetation Index (VI) value at a per
pixel basis. There are two primary vegetation layers. The first is the
Normalized Difference Vegetation Index (NDVI) which is referred to as
the continuity index to the existing National Oceanic and Atmospheric
Administration-Advanced Very High Resolution Radiometer (NOAA-AVHRR)
derived NDVI. The second vegetation layer is the Enhanced Vegetation
Index (EVI) that minimizes canopy background variations and maintains
sensitivity over dense vegetation conditions. The EVI also uses the blue
band to remove residual atmosphere contamination caused by smoke and
sub-pixel thin cloud clouds. The MODIS NDVI and EVI products are
computed from atmospherically corrected bi-directional surface
reflectances that have been masked for water, clouds, heavy aerosols,
and cloud shadows.
MOD13A1.061 Terra Vegetation Indices 16-Day Global 500m
The MOD13A1 V6.1 product provides a Vegetation Index (VI) value at a per
pixel basis. There are two primary vegetation layers. The first is the
Normalized Difference Vegetation Index (NDVI) which is referred to as
the continuity index to the existing National Oceanic and Atmospheric
Administration-Advanced Very High Resolution Radiometer (NOAA-AVHRR)
derived NDVI. The second vegetation layer is the Enhanced Vegetation
Index (EVI) that minimizes canopy background variations and maintains
sensitivity over dense vegetation conditions. The EVI also uses the blue
band to remove residual atmosphere contamination caused by smoke and
sub-pixel thin cloud clouds. The MODIS NDVI and EVI products are
computed from atmospherically corrected bi-directional surface
reflectances that have been masked for water, clouds, heavy aerosols,
and cloud shadows.
MOD13A2.061 Terra Vegetation Indices 16-Day Global 1km
The MOD13A2 V6.1 product provides two Vegetation Indices (VI): the
Normalized Difference Vegetation Index (NDVI) and the Enhanced
Vegetation Index (EVI). The NDVI is referred to as the continuity index
to the existing National Oceanic and Atmospheric Administration-Advanced
Very High Resolution Radiometer (NOAA-AVHRR) derived NDVI. The EVI has
improved sensitivity over high biomass regions. The algorithm for this
product chooses the best available pixel value from all the acquisitions
from the 16-day period. The criteria used are low clouds, low view
angle, and the highest NDVI/EVI value.
The Terra and Aqua combined MCD64A1 version 6.1 Burned Area data product
is a monthly, global gridded 500m product containing per-pixel
burned-area and quality information. The MCD64A1 burned-area mapping
approach employs 500m MODIS Surface Reflectance imagery coupled with 1km
MODIS active fire observations. The algorithm uses a burn sensitive
vegetation index (VI) to create dynamic thresholds that are applied to
the composite data. The VI is derived from MODIS shortwave infrared
atmospherically corrected surface reflectance bands 5 and 7 with a
measure of temporal texture. The algorithm identifies the date of burn
for the 500m grid cells within each individual MODIS tile. The date is
encoded in a single data layer as the ordinal day of the calendar year
on which the burn occurred, with values assigned to unburned land pixels
and additional special values reserved for missing data and water grid
cells.
MOD08_M3.061 Terra Atmosphere Monthly Global Product
MOD08_M3 V6.1 is an atmosphere global product that contains monthly 1 x
1 degree grid average values of atmospheric parameters. These parameters
are related to atmospheric aerosol particle properties, total ozone
burden, atmospheric water vapor, cloud optical and physical properties,
and atmospheric stability indices. The product also provides means,
standard deviations, QA weighted statistics, log-normal distributions,
uncertainty estimates, and statistics for fractions of pixels that
satisfy some condition. Below is a subset of the bands, for a complete
list see the [MOD08 Band
List](https://developers.google.com/earth-engine/MOD08_bands.html).
MCD12Q1.061 MODIS Land Cover Type Yearly Global 500m
The MCD12Q1 V6.1 product provides global land cover types at yearly
intervals (2001-2016) derived from six different classification schemes.
It is derived using supervised classifications of MODIS Terra and Aqua
reflectance data. The supervised classifications then undergo additional
post-processing that incorporate prior knowledge and ancillary
information to further refine specific classes.
MOD17A3H.006: Terra Net Primary Production Yearly Global 500m
The MOD17A3HGF V6.1 product provides information about annual Gross and
Net Primary Productivity (GPP and NPP) at 500m pixel resolution. Annual
NPP is derived from the sum of all 8-day Net Photosynthesis(PSN)
products (MOD17A2H) from the given year. The PSN value is the difference
of the Gross Primary Productivity (GPP) and the Maintenance Respiration
(MR) (GPP-MR).
