Dual-Frequency Doppler Radar Data for Winter Weather Validation

Radar measurements from the Dual-frequency Dual-polarized Doppler Radar (D3R) collected during the ICE-POP field campaign in South Korea. The dataset contains six key polarimetric and Doppler variables, including reflectivity and radial velocity, to study severe winter weather in complex terrain. It was developed by a NASA-funded consortium and covers observations from November 1, 2017, to March 17, 2018.

Use Cases

• Validating satellite-based precipitation estimates from the GPM mission using ground-based radar reflectivity and differential reflectivity.
• Analyzing microphysical properties of winter storms via dual-frequency (Ku and Ka band) measurements of copolar correlation coefficient and differential propagation phase.
• Studying wind fields and turbulence in complex terrain during winter events using radial velocity and spectrum width data.
• Improving short-term forecasting models for severe winter weather by incorporating high-resolution polarimetric radar observations.
• Investigating the impact of terrain on precipitation processes using a continuous time-series of radar data from a fixed operational range.

Strengths

• Provides six specific polarimetric and Doppler variables (e.g., reflectivity, radial velocity) for detailed atmospheric analysis.
• Data spans a continuous 4.5-month campaign (Nov 2017 - Mar 2018) focused on winter weather.
• Instrument operates at two specific frequencies (Ku-band 13.91 GHz and Ka-band 35.56 GHz) with a defined range resolution (450 m to 39.75 km).
• Dataset is hosted on multiple authoritative platforms (NASA Earthdata, Data.gov), indicating recognized importance.

Limitations

• Exact row count, file size, and complete column names are not provided by any source.
• Sources conflict on the last updated date (2018-03-17 vs. 2026-03-13), creating uncertainty about metadata maintenance.
• License is ambiguously listed as 'other-license-specified' or 'None', requiring further investigation for reuse.

Provenance

Source

NASA GPM Project, government-industry-academic consortium, GHRC DAAC.

Collection Method

Collected by the fixed Dual-frequency Dual-polarized Doppler Radar (D3R) instrument during the ICE-POP field campaign.

Time Range

November 1, - 2017 to March 17, 2018

Freshness

2026-03-13 02:25:04.378674

Geography

South Korea, specifically the Pyeongchang region during the 2018 Olympic Winter Games.