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About HydroGlobe

HydroGlobe represents an advanced land surface reanalysis integrating many remote sensing datasets within the Noah-MP land surface model using the NASA LIS software framework. The assimilation in HydroGlobe includes soil moisture from NASA SMAP and other microwave sensors obtained through the Climate Change Initiative Program data released by the European Space Agency (ESA CCI), leaf area index (LAI) from Moderate Resolution Imaging Spectroradiometer (MODIS), terrestrial water storage anomalies from Gravity Recovery and Climate Experiment and follow-on satellites (GRACE/GRACE-FO), and snow water equivalent derived from MODIS using machine learning-based reconstruction approaches. The HydroGlobe simulations are forced with meteorology from NASA’s atmospheric reanalysis MERRA-2, satellite-based radiation products from the NASA CERES project, and precipitation from GPM IMERG. The model integrations will be close to real time, at a 5-km spatial resolution globally, and will span a time period of 2003 to present.

Note that the 5-km HydroGlobe data is not yet available.  Please check this page for updates on data availability.

POC (Points of Contact) for HydroGlobe:

Table 1: List of HydroGlobe surface forcing variables.  Data is available hourly.

Variable

Short Name

Units

Near-surface air temperature

Tair

K

Near-surface specific humidity

Qair

kg kg-1

Surface pressure

PSurf

Pa

Northward wind

Wind_N

m s-1

Eastward wind

Wind_E

m s-1

Downward longwave radiation at the surface

LWdown

W m-2

Downward shortwave radiation at the surface

SWdown

W m-2

Total precipitation rate

Rainf

kg m-2 s-1


Table 2: List of expected Noah-MP LSM output variables from HydroGlobe.  Data is daily-averaged except where noted below.

Variable

Short Name

Units

Surface net downward shortwave flux

SWnet_tavg

W m-2

Surface net downward longwave flux

LWnet_tavg

W m-2

Surface upward latent heat flux

Qle_tavg

W m-2

Surface upward sensible heat flux

Qh_tavg

W m-2

Downward heat flux in soil

Qg_tavg

W m-2

Snowfall rate (frozen)

Snowf_tavg

kg m-2 s-1

Rainfall rate (liquid)

Rainf_tavg

kg m-2 s-1

Total evapotranspiration

Evap_tavg

kg m-2 s-1

Surface runoff amount

Qs_tavg

kg m-2 s-1

Subsurface runoff amount

Qsb_tavg

kg m-2 s-1

Surface temperature

AvgSurfT_tavg

K

Daily minimum surface temperature

AvgSurfT_tavg_min

K

Daily maximum surface temperature

AvgSurfT_tavg_max

K

Liquid water content of surface snow

SWE_tavg

kg m-2

Snow depth

SnowDepth_tavg

m

Soil moisture - 4 layers

[0-10cm; 10-40cm; 40-100cm; 100-200cm]

SoilMoist_tavg

m3 m-3

Soil temperature - 4 layers

[0-10cm; 10-40cm; 40-100cm; 100-200cm]

SoilTemp_tavg

K

Potential evapotranspiration

PotEvap_tavg

kg m-2 s-1

Vapor pressure deficit

VPD_tavg

Pa

Vegetation transpiration

TVeg_tavg

kg m-2 s-1

Bare soil evaporation

ESoil_tavg

kg m-2 s-1

Total canopy water storage

CanopInt_tavg

kg m-2

Water table depth

WaterTableD_tavg

m

Terrestrial water storage

TWS_tavg

mm

Groundwater storage

GWS_tavg

mm

Surface snow area fraction

Snowcover_tavg

[-]

Gross primary production

GPP_tavg

g m-2 s-1

Net primary productivity

NPP_tavg

g m-2 s-1

Net ecosystem exchange

NEE_tavg

g m-2 s-1

Leaf area index

LAI_tavg

[-]


Table 3: List of expected HyMAP routing output variables from HydroGlobe.  Data is daily-averaged.

Variable

Short Name

Units

Streamflow

Streamflow_tavg

m3 s-1

River depth

RiverDepth_tavg

m

Flooded fraction

FloodedFrac_tavg

[-]

Surface water elevation

SurfElev_tavg

m

Surface water storage

SWS_tavg

mm


A 10-km version of HydroGlobe was previously developed.

Please see this NASA Earthdata VEDA Dashboard Data Story on the earlier 10-km version of Hydroglobe.

You can also explore the 10-km global data product catalog.