Global Climate Model Stitching With Distance-Weighted Overlap Zones

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Solution Overview

Problem

Conventional global climate models face computational burdens and inaccuracies when transitioning from coarse to high resolution, leading to unreliable regional climate analysis and significant data loss due to smoothing processes, which compromises the accuracy and efficiency of climate impact studies.

Innovation Solution

A stitching algorithm that creates intentional overlap zones between neighboring domains, determining weightings based on distance from boundaries to seamlessly blend data across domain boundaries, allowing for parallel processing without dampening extreme weather events.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional global climate models simulate at coarse resolutions to reduce computational burden, then computational efficiency is improved, but measurement precision and reliability for regional climate analysis deteriorate

Engineering Contradiction:

Improvecomputational efficiencyVSAvoidregional climate analysis accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The patent divides the global climate model into multiple regional domains, each downscaled independently to high resolution. This segmentation allows computational efficiency at coarse global scale while enabling high-resolution regional analysis through independent domain processing, resolving the contradiction between global computational burden and regional precision requirements

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a stitching algorithm as an intermediary that combines regional domain outputs into a coherent global dataset. This mediator reconciles the coarse global model outputs with high-resolution regional analyses by seamlessly integrating domain boundaries, maintaining both computational efficiency and measurement precision

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If downscaling methods apply smoothing techniques to eliminate discontinuities between neighboring domains, then ease of operation is improved, but loss of information and manufacturing precision deteriorate

Engineering Contradiction:

Improvedata stitching simplicityVSAvoidclimate extreme data loss

Core Design Contradiction:

Ease of operationVSLoss of information

Solution Approach 1:

The patent creates intentional overlap zones between neighboring domains before stitching, pre-positioning redundant data points that enable seamless blending. This preliminary action eliminates discontinuities through the overlap regions while preserving climate extremes through weighted averaging that respects boundary distances, avoiding information loss

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent applies different stitching strategies to different regions based on their characteristics. Overlap zones use weighted averaging with distance-based weights, while non-overlapping regions maintain original values. This local differentiation enables smooth transitions where needed while preserving extremes elsewhere, balancing ease of operation with information preservation

Inventive Principle:

Principle #3Local quality

3Productivity

If local downscaling methods are used to provide global results, then productivity is improved, but reliability deteriorates due to inconsistencies between neighboring grid cells

Engineering Contradiction:

Improveglobal dataset generation speedVSAvoidconsistency across neighboring regions

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent merges regional downscaling approaches with global coherence by creating a unified stitching framework that processes multiple domains simultaneously. This combining approach maintains the productivity of local downscaling while ensuring reliability across boundaries through consistent overlap zone handling and weighted averaging that preserves climate extremes

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The stitching algorithm incorporates feedback mechanisms that adjust domain boundaries and overlap zones based on climate variable characteristics. This feedback ensures consistent handling of boundaries across neighboring domains, maintaining reliability while preserving the efficiency of parallel processing

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20250285215A1Techniques for global stitching of regionally downscaled climate models

Publication Date: 2025.09.11 MCKINSEY & CO INC

AI summary

Systems and methods for downscaled global model stitching are disclosed. An example system includes a memory storing instructions, including a stitching algorithm, and a processor interfacing with the memory. The instructions cause the system to receive a dataset comprising a plurality of domains that each have a plurality of data and share a boundary with another respective domain; and create an overlap region associated with a boundary between a pair of domains. The instructions further cause the system to determine, by executing the stitching algorithm, a weighting for each respective data point in the pair of domains based on a distance of the respective data point from a first boundary of the overlap region or a second boundary of the overlap region, create a stitched overlap region based on the weightings, and place the stitched overlap region along the boundary between the pair of domains.