Derived data for: Observing-network geometry limits the identifiability of national land carbon budgets

Derived data products for the manuscript Observing-network geometry limits the identifiability of national land carbon budgets. The archive contains the gridded and national diagnostics needed to reproduce Figures 1-6 and Supplementary Figures S1-S7, including 1-degree land masks, cell areas, country and ecoregion identifiers, distance-to-site fields, seasonal amplitude and interannual variability, prior/posterior uncertainty and variance-reduction diagnostics for 23 TransCom regions, 228 countries, 25 MIP regions and 240 CarbonTracker land regions, and the greedy network-design and bootstrap outputs. Raw observations, CarbonTracker CT2026 posterior flux/covariance files and monthly prior fields are not redistributed. Upstream products are available from NOAA GML: ObsPack v11.0 (https://doi.org/10.25925/20250801) and CarbonTracker CT2026 (https://doi.org/10.25925/hqp0-rk68). The archive contains only derived arrays; see README.md for the file list and variable keys.