GPM Ground Validation Rainfall Data from Finnish LPVEx Experiment

GPM Ground Validation Autonomous Parsivel Unit (APU) LPVEx dataset provides in-situ rainfall data for satellite algorithm validation. The dataset was collected by the GHRC DAAC during the Light Precipitation Validation Experiment at four sites in Finland over September and October 2010. It contains measurements from autonomous Parsivel units to support the Global Precipitation Measurement mission.

Use Cases

• Validating GPM satellite precipitation retrieval algorithms using ground-based droplet size and precipitation rate measurements.
• Studying the microphysical properties of light rain and snow in high-latitude precipitation systems.
• Comparing in-situ precipitation amount data from four Finnish sites with coordinated remote sensing observations.
• Supporting cloud-resolving model simulations with empirical data on liquid and solid precipitation.

Strengths

• Data collection targeted a specific validation campaign (LPVEx) with coordinated remote sensing and modeling.
• Measurements cover four distinct geographic sites in Finland, providing spatial context.
• Dataset is hosted on multiple authoritative platforms (NASA Earthdata, Data.gov), indicating recognized importance.

Limitations

• Specific row counts, file sizes, and column names are not provided by any source, limiting assessment of data volume and structure.
• Conflicting last updated dates exist: one source reports 2011-01-12, while others report 2026-03-13, creating uncertainty about maintenance.
• License information is inconsistent, listed as 'other-license-specified' on some platforms and 'None' on another.

Provenance

Source

GHRC_DAAC (Global Hydrology Resource Center Distributed Active Archive Center)

Collection Method

In-situ microphysical property measurements collected by Autonomous Parsivel Unit (APU) instruments.

Time Range

September 2010 to October 2010

Freshness

2026-03-13 02:07:00.289194

Geography

Four sites in Finland: Harmaja, Emasalo, Jarvenpaa, and the Gulf of Finland (Aranda)