PML_V2: Coupled Evapotranspiration and Gross Primary Product (CAS/IGSNRR/PML/V2)

Penman-Monteith-Leuning Evapotranspiration V2 (PML_V2) products include
evapotranspiration (ET), its three components, and
gross primary product (GPP) at 500m and 8-day resolution during 2002-2017
and with spatial range from -60°S to 90°N. The major advantages of the
PML_V2 products are:

  1. coupled estimates of transpiration and GPP via canopy
    conductance (Gan et al., 2018; Zhang et al., 2019)
  2. partitioning ET into three components: transpiration from vegetation,
    direct evaporation from the soil and vaporization of intercepted
    rainfall from vegetation (Zhang et al., 2016).

The PML_V2 products perform well against observations
at 95 flux sites across globe, and are similar to or noticeably better than
major state-of-the-art ET and GPP products widely used by water and ecology
science communities (Zhang et al., 2019).

GPPGross primary productgC m-2 d-1
EcVegetation transpirationmm d-1
EsSoil evaporationmm d-1
EiInterception from vegetation canopymm d-1
ET_waterWater body, snow and ice evaporation. Penman evapotranspiration is regarded as actual evaporation for them. mm d-1


PML_V2 (producer, licensor)
Google Earth Engine (host)
STAC Version 0.6.2
Keywords CAS, IGSNRR, PML, evapotranspiration, gpp, gross primary product
License proprietary
Temporal Extent 7/3/2002, 5:00:00 PM - now
Citation Zhang, Y., Kong, D., Gan, R., Chiew, F.H.S., McVicar, T.R., Zhang, Q., and Yang, Y., 2019. Coupled estimation of 500m and 8-day resolution global evapotranspiration and gross primary production in 2002-2017. Remote Sens. Environ. 222, 165-182,
Type image_collection
GSD metersm
Cadence days
cube:dimensions {"x":{"type":"spatial","axis":"x","extent":[-180,180]},"y":{"type":"spatial","axis":"y","extent":[-60,90]},"temporal":{"type":"temporal","extent":["2002-07-04T00:00:00Z",null]},"bands":{"type":"bands","values":["GPP","Ec","Es","Ei","ET_water"]}}