How much carbon plants capture (Aqua, 8-day, 500 m)
What it measures. Estimates how much carbon plants pull from the air through photosynthesis (gross primary productivity), summed over 8-day periods at 500 m resolution, along with net photosynthesis.
How it's made. Derived from the MODIS instrument on NASA's Aqua satellite using a radiation-use-efficiency method, produced as an 8-day composite Level-4 product.
How & where you'd use it. Useful for tracking vegetation growth and carbon uptake, and as input to models of the carbon, water, and energy cycles.
What's measured
Coverage & cadence
- Time span2021-01-01 → ongoing
- Measured byAqua (MODIS)
- Processing levelLevel 4
- Spatial extent-180, -90, 180, 90
- FormatsHDF-EOS2
- StatusACTIVE
What you can do with it
- Map vegetation, forests and biomass
- Monitor ecosystem productivity and carbon
- Support habitat and biodiversity studies
Official description
The MYD17A2H Version 6.1 Gross Primary Productivity (GPP) product is a cumulative 8-day composite of values with 500 meter (m) pixel size based on the radiation use efficiency concept that can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation. The Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) data product includes information about GPP and Net Photosynthesis (PSN). The PSN band values are the GPP minus the Maintenance Respiration (MR). The data product also contains a PSN Quality Control (QC) layer. The quality layer contains quality information for both the GPP and the PSN. Known Issues * For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Aqua&as=61).
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="MYD17A2H",
version="061",
bounding_box=(-122.5, 37.2, -121.8, 37.9), # your area (W,S,E,N)
temporal=("2024-01-01", "2024-12-31"), # your dates
)
files = earthaccess.open(results) # stream straight from LPCLOUD Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package. Official links
- Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data. GET DATA
- The Application for Extracting and Exploring Analysis Ready Samples (AppEEARS) offers a simple and efficient way to perform data access and transformation processes. GET DATA
- The technical information in the User's Guide enables users to interpret and use the data products. VIEW RELATED INFORMATION
- The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products. VIEW RELATED INFORMATION
- The File Specification provides a description of the product file including Scientific Data Sets and their attributes. VIEW RELATED INFORMATION
- Validation at stage 3 has been achieved for the MODIS Gross and Net Primary Productivity data products. VIEW RELATED INFORMATION
- Further details regarding MODIS land product validation for the MYD17 data products are available from the MODIS Land Team Validation site. VIEW RELATED INFORMATION
- The LDOPE Land Product Quality Assessment website provides known issues, maneuvers, and product quality of the land products. VIEW RELATED INFORMATION