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NPreciSe - An Automated Satellite Precipitation Product Assessment Tool
Malarvizhi Arulraj1, Veljko Petković2, Susan Wen3
1Earth System Science Interdisciplinary Center/Cooperative Institute for Satellite Earth System Studies, University of Maryland, College Park, Maryland, USA. marulraj@umd.edu.
Scientific Data
|September 27, 2024
Summary
Satellite-based Quantitative Precipitation Estimates (QPE) can have errors, so validating them is crucial. The NPreciSe system offers a standardized way to assess satellite precipitation product performance and uncertainty for users and developers.
Area of Science:
- Hydrology
- Remote Sensing
- Meteorology
Background:
- Satellite-based Quantitative Precipitation Estimates (QPE) are vital for hydrological applications but are indirect measurements prone to errors.
- The proliferation of diverse satellite QPE products from various agencies complicates uncertainty assessment and product selection.
- Characterizing uncertainties in satellite QPE is essential for reliable use in application-specific studies.
Purpose of the Study:
- To introduce NPreciSe (NOAA Satellite-based Precipitation Validation System), a standardized system for validating satellite-based precipitation products.
- To enable end-users to select the most suitable satellite QPE for their specific applications.
- To assist algorithm developers in identifying and rectifying systematic biases in QPE retrievals.
Main Methods:
- Developed a standardized validation system using the open-source Python software.
- Implemented near real-time performance assessment of satellite precipitation products over the continental United States.
- Created a user-interactive web platform to facilitate access and analysis of validation results.
Main Results:
- NPreciSe provides a standardized framework for evaluating satellite QPE performance and uncertainty.
- The system aids in near real-time assessment, crucial for timely decision-making.
- The web platform enhances accessibility for end-users and developers.
Conclusions:
- NPreciSe offers a valuable tool for improving the reliability and application of satellite-based precipitation estimates.
- Standardized validation is key to understanding and mitigating uncertainties in satellite QPE.
- The system supports both end-user application needs and algorithm development improvements.
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