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Partly live.Values marked LIVE come from NOAA, the Bureau of Meteorology, Copernicus (ERA5) and NASA, each with its date and source. Anything marked FIXTURE — including demo events — is still a placeholder.Sources

Data sources

Imagery + first live values connected

Where the data comes from

What is connected today, and what is still being evaluated. NASA satellite imagery is connected for display on our maps, and a first set of numeric sources now feeds live values: climate indices, global temperature and active tropical cyclones. Forecasts and the remaining indicators are still labelled fixtures. Before any source is connected, we verify access, licence, redistribution rights, update cadence and attribution.

Read the methodology

Connected for display

Real layers the site shows today, pulled at request time from NASA services. Display only: we do not redistribute the underlying data.

Connected (display only)
LayerDatasetData kindCadenceLatest availableBaseline
True colour (clouds, smoke, dust)VIIRS_SNPP_CorrectedReflectance_TrueColorSuomi NPP / VIIRS Corrected ReflectanceNASA GIBSObservationDaily29 Sept 2026—
Precipitation rateIMERG_Precipitation_Rate_30minGPM IMERG (Early Run), 30-minuteNASA GIBSAnalysisEvery 30 minutes29 Sept 2026, 18:30 UTC—
Precipitation (daily)IMERG_Precipitation_RateGPM IMERG, dailyNASA GIBSAnalysisDaily28 Sept 2026—
Cloud tops, infrared (Himawari)Himawari_AHI_Band13_Clean_InfraredHimawari-9 AHI Band 13 clean infraredNASA GIBSObservationEvery 10 minutes29 Sept 2026, 23:40 UTC—
Sea surface temperatureGHRSST_L4_MUR_Sea_Surface_TemperatureGHRSST L4 MUR v4.1NASA JPL PO.DAAC via NASA GIBSAnalysisDaily28 Sept 2026—
Sea surface temperature anomalyGHRSST_L4_MUR_Sea_Surface_Temperature_AnomaliesGHRSST L4 MUR v4.1 anomalyNASA JPL PO.DAAC via NASA GIBSAnalysisDaily28 Sept 20262003–2014 (MUR climatology)
Land surface temperature (day)MODIS_Terra_Land_Surface_Temp_DayTerra MODIS Land Surface TemperatureNASA GIBSObservationDaily30 Sept 2026—
Aerosols (smoke, dust, haze)MODIS_Combined_Value_Added_AODMODIS Terra+Aqua combined value-added AODNASA GIBSObservationDaily28 Sept 2026—
Air temperature, monthly (reanalysis)MERRA2_2m_Air_Temperature_MonthlyNASA GMAO MERRA-2NASA GIBSReanalysisMonthlyJune 2026—
Surface wind speed, monthly (reanalysis)MERRA2_Surface_Wind_Speed_MonthlyNASA GMAO MERRA-2NASA GIBSReanalysisMonthlyJune 2026—

Required credit: “Imagery from NASA GIBS / Worldview”, plus the originating mission where shown. NASA GIBS

EPIC full-disk photographs

Natural-colour images of the sunlit Earth from NASA's EPIC camera on DSCOVR, about 1.5 million km away. Several per day, typically one to three days old.

Latest available: 27 Sept 2026, 22:36 UTC · Credit: NASA EPIC team. epic.gsfc.nasa.gov

Hero globe textures

The decorative globe is rendered from these NASA images. It is illustrative, not current weather; only the day–night line is computed for the current time.

  • Blue Marble: Next Generation (cloud-free land and ocean surface) — NASA Earth Observatory / Reto Stöckli; served by NASA GIBS (Retrieved 2026-09-28)
  • Black Marble 2016 (VIIRS night lights) — NASA Earth Observatory / Suomi NPP VIIRS; served by NASA GIBS (Retrieved 2026-09-28)
  • Blue Marble cloud composite (MODIS) — NASA Goddard Space Flight Center / Reto Stöckli (Visible Earth) (Retrieved 2026-09-28)

Connected numeric sources

Values the site reads today and shows with a LIVE badge, each with its date. We show them as published and credit the provider.

Connected (live values)

  • NOAA Climate Prediction Center

    Oceanic Niño Index (ONI, ERSSTv5)

    Terms verified
    Provides
    ENSO state: 3-month mean Niño-3.4 SST anomaly
    Cadence
    Monthly (3-month running mean)
    Licence
    US Government work (public domain)
    Required attribution
    “NOAA Climate Prediction Center”

    Anomalies are relative to centred 30-year base periods that CPC updates every 5 years.

    Provider pageMethod

  • NOAA Physical Sciences Laboratory

    Dipole Mode Index (HadISST1.1)

    Partly verified
    Provides
    Indian Ocean Dipole state
    Cadence
    Monthly, published with a lag of a few months
    Licence
    NOAA open data
    Required attribution
    “NOAA PSL; HadISST1.1 (Met Office Hadley Centre)”

    The provider does not state the anomaly baseline, so this value is shown with that caveat until it is verified.

    Provider pageMethod

  • Bureau of Meteorology (Australia)

    Real-time Multivariate MJO index (RMM)

    Partly verified
    Provides
    MJO phase and amplitude
    Cadence
    Daily
    Licence
    © Commonwealth of Australia (Bureau of Meteorology)
    Required attribution
    “Bureau of Meteorology”

    Attribution to the Bureau of Meteorology is required. Reuse terms for this file still need written confirmation.

    Provider pageMethod

  • Copernicus Climate Change Service (C3S) / ECMWF

    Climate Pulse — ERA5 daily global 2 m temperature

    Terms verified
    Provides
    Global mean 2 m air temperature and its anomaly vs 1991–2020; annual means and monthly climatology
    Cadence
    Daily (values for the last few days are preliminary)
    Licence
    Copernicus licence
    Required attribution
    “Contains modified Copernicus Climate Change Service information”

    Reanalysis, not observations: ERA5 blends observations with a model. Commercial reuse permitted with attribution.

    Provider pageMethod

  • NASA

    EONET — Earth Observatory Natural Event Tracker

    Terms verified
    Provides
    Active tropical cyclones: positions and maximum sustained winds from JTWC and NOAA advisories
    Cadence
    Refreshed about hourly
    Licence
    NASA open data
    Required attribution
    “NASA EONET; originating agencies (JTWC, NOAA NHC/CPHC) as linked on each event”

    EONET aggregates agency advisories; it is not an official warning service. For warnings, follow the responsible national agency.

    Provider pageMethod

Next candidates

Location forecasts: Open-Meteo (CC BY 4.0; the free tier is non-commercial only) and BMKG's public forecast API for Indonesian villages (attribution to BMKG is mandatory; commercial terms to be confirmed in writing). Both are listed in the register below.

Candidate sources

Facts last checked: 28 September 2026

  • ECMWF

    Open Data (IFS & AIFS, 0.25°)

    Terms verified
    Forecast

    Global forecast fields: temperature, precipitation, wind, pressure.

    Access
    Free download from data.ecmwf.int; mirrored on AWS, Azure and Google Cloud.
    Licence
    CC BY 4.0
    Required attribution
    “© ECMWF”
    Notes
    Real-time catalogue opened under CC BY 4.0 (commercial use allowed with attribution). Higher-resolution tiers may carry service charges.
    Provider page

  • NOAA

    GFS / GEFS (NODD)

    Terms verified
    Forecast

    Global deterministic and ensemble forecast fields.

    Access
    NOAA Open Data Dissemination on AWS, Google Cloud and Azure.
    Licence
    US Government work (no restrictions)
    Required attribution
    “NOAA / NCEP”
    Notes
    Byte-range access lets a pipeline fetch only the variables it needs.
    Provider page

  • Copernicus C3S / ECMWF

    ERA5 (Climate Data Store)

    Terms verified
    Reanalysis

    Climatologies, anomalies and historical context (1940–present).

    Access
    CDS API with a personal access token.
    Licence
    Copernicus licence
    Required attribution
    “Contains modified Copernicus Climate Change Service information”
    Notes
    Commercial reuse permitted with attribution. Requests are queued.
    Provider page

  • Google Research

    ARCO-ERA5 (Zarr)

    Partly verified
    Reanalysis

    Analysis-ready ERA5 for historical queries without the CDS queue.

    Access
    Public Zarr store on Google Cloud Storage.
    Licence
    Copernicus licence (ERA5)
    Required attribution
    “Contains modified Copernicus Climate Change Service information”
    Notes
    Updated roughly monthly with a lag of a few months; not suitable for near-real-time use.
    Provider page

  • NASA

    FIRMS active fire

    Terms verified
    WildfireObservation

    Satellite-detected active fires for wildfire context.

    Access
    Free API with a MAP_KEY; transaction limits apply.
    Licence
    NASA open data
    Required attribution
    “NASA FIRMS”
    Notes
    Detections are thermal anomalies, not confirmed fire perimeters.
    Provider page

  • NOAA NCEI

    IBTrACS v04

    Terms verified
    Tropical cyclonesAnalysis

    Historical tropical cyclone tracks and intensities.

    Access
    Public download (CSV, netCDF, shapefile).
    Licence
    US Government work
    Required attribution
    “NOAA NCEI IBTrACS”
    Notes
    Best-track data merged from several agencies; intensities differ by agency convention.
    Provider page

  • NOAA CPC · NOAA PSL · Bureau of Meteorology

    ONI (ENSO), DMI (IOD), RMM (MJO)

    Partly verified
    Climate indicesAnalysis

    Climate-mode indicators with their official definitions.

    Access
    Public text files published by each agency.
    Licence
    Agency terms
    Notes
    NOAA series are public domain; Bureau of Meteorology reuse terms still need confirmation.
    Provider page

  • Open-Meteo

    Weather & historical APIs

    Terms verified
    Point forecastsForecast

    Location-level forecasts for prototyping.

    Access
    Free tier for non-commercial use with daily/hourly call limits.
    Licence
    CC BY 4.0 (data); commercial use requires a paid plan
    Required attribution
    “Weather data by Open-Meteo.com”
    Notes
    Not usable for free if meteorologist.id is monetised.
    Provider page

  • BMKG

    Public forecast API (village level)

    Partly verified
    National forecasts (Indonesia)Forecast

    Official Indonesian forecasts at administrative-village level.

    Access
    Public API; rate-limited per IP; updated twice daily.
    Licence
    No formal licence published
    Required attribution
    “Source: BMKG (mandatory)”
    Notes
    Attribution to BMKG is mandatory. Commercial terms to be confirmed with BMKG in writing.
    Provider page

How sources are chosen

  • Authoritative and scientifically documented
  • Reproducible and stable over time
  • Legally reusable, including redistribution
  • Globally consistent where the product is global
  • Attribution built in from the start

Map attribution

Maps on this site use a free vector basemap. Its attribution stays visible on every map.

Planned data architecture

Structured records (events, articles, dataset catalogue) and large gridded data (GRIB, NetCDF, Zarr, satellite imagery) have different needs, so they are planned to live in different stores. The interface talks only to normalised domain objects through adapters.

  1. 01Provider
  2. 02Ingestion (Python)
  3. 03Normalisation & validation
  4. 04Object storage (Zarr, COG, Parquet) + relational catalogue
  5. 05Internal API
  6. 06Visualisation