TerraChronia TS-12 (1.52) — sources, derivatives and offline interpretation

SST: NOAA ERSSTv5, NOAA/NCEI, distributed by NOAA PSL.
https://psl.noaa.gov/data/gridded/data.noaa.ersst.v5.html
https://www.ncei.noaa.gov/products/extended-reconstructed-sst
Atmospheric pressure: NCEP/NCAR Reanalysis 1 monthly mean sea-level pressure,
NOAA PSL, https://psl.noaa.gov/data/gridded/data.ncep.reanalysis.derived.html
Data/image provided by the NOAA Physical Sciences Laboratory, Boulder,
Colorado, USA, from https://psl.noaa.gov/. NOAA US government data are public
domain unless specifically annotated. Derived maps are not official NOAA products
and do not imply endorsement. Policy https://psl.noaa.gov/data/obs/download/Citation.html

Transformation: selected monthly fields minus the mean of the same calendar
month in 1991–2020, per grid cell; no addition of unrelated oscillation fields.
SST grid 2 degrees (89 x 180); pressure grid 2.5 degrees (73 x 144), units
millibars = hPa. Rendering samples nearest grid cell into a 1-degree display
texture (this increases display sampling, not scientific resolution).
Original OPeNDAP responses, query URLs and SHA-256 are retained in source tools/data.
Events: SST December 1997, December 2010, October 2019, September 2016;
pressure January 1990, January 2010. Single monthly situations contain other
climate influences too; they are not clean composites attributable to one index.

Explanatory sources:
NOAA JetStream ENSO https://www.noaa.gov/jetstream/tropical/enso
NOAA CPC NAO https://www.cpc.ncep.noaa.gov/data/teledoc/nao.shtml
NOAA CPC historical ENSO https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso/oni/v6/
NOAA PSL teleconnections and ENSO composites https://psl.noaa.gov/enso/
Australian Bureau of Meteorology IOD https://www.bom.gov.au/climate/iod/
BoM copyright policy https://www.bom.gov.au/copyright (CC BY 4.0 except noted items).
The app's Czech explanatory texts and geometric schematics are original
paraphrases/educational illustrations; no BoM images are copied.
WMO normals https://wmo.int/wmo-climatological-normals
Copernicus ERA5 https://cds.climate.copernicus.eu/datasets/reanalysis-era5-single-levels
(no new live ERA5 fields downloaded; previous Alisov derivative is reused).
Alisov: Shimabukuro et al. (2023), doi:10.1186/s40645-023-00547-1, CC BY 4.0;
existing updated zones from 1981–2020 retained.
Köppen-Geiger: Beck et al. (2023), doi:10.1038/s41597-023-02549-6, CC BY 4.0;
existing 30-type taxonomy and raster inputs retained.

Reference rectangles are exact index boxes where identified (Niño 3.4, IOD).
Impact rectangles and stream paths are broad qualitative educational regions,
not measured anomaly boundaries, numerical winds or precipitation probabilities.
Phase switches are demonstrations; astronomical time does not select the phase.
Historical data are available offline and are separately labelled.