rhiza-chc

Plugin rhiza-chc from marketplace chc-skills in rhiza-research/chc-skills. Commands read from the repo's manifest — 2 days ago.

Skills (18)

• africa-itf

  Download the latest NOAA/CPC Africa Intertropical Front (ITF) figure, which CPC also labels ITCZ, as a PNG: the continental position map (current vs mean) or the west or east latitude-by-dekad time series. Use when a briefing or answer needs CPC's published ITF / ITCZ position figure for the most re

• analog-years

  Print the historical analog years for a date: past years whose large-scale climate state (El Niño / ENSO) resembles the target year. Use when a task needs analog years, \"years like this one\", or the list of years to build an analog-year composite of a season.

• chc-plot-theme

  Print the Kenya Meteorological Department (KMSA) or classic CHC plot theme as JSON to save for plot --theme-file, or a CHC or KMSA rainfall colormap as a JSON object for a plot trace's meta.palette, choosing the CHC window (daily, week, month, season) from a window length or a Zarr's aggregation per

• ecmwf-04deg-fetch

  Fetch one CHC-standardized ECMWF 0.4 degree daily precipitation ensemble (101 members, 46 lead days, 60S-60N) from the private Sheerwater archive gs://sheerwater-datalake/ecmwf-0_4/forecast/, as a weather-skills forecast Zarr of daily rates. Reads only the chunks inside --bbox. Needs Google Cloud cr

• icon-eps-fetch

  Fetch the DWD ICON-EPS global ensemble forecast (40 members, out to 7.5 days) from DWD open data for the latest run, regridded from ICON's triangular grid onto a regular lat/lon grid, as a weather-skills Zarr: precipitation, 2 m temperature and dewpoint, humidity, 10 m winds and gusts, cloud cover,

• iod-enso-fetch

  Download Bureau of Meteorology (BoM) Indian Ocean Dipole and ENSO products: the current IOD, Niño3.4, Relative Niño3.4, or SOI monitoring graph and its index values, or an ACCESS-S IOD / Niño3.4 outlook plume and its monthly ensemble-mean and category-probability table. Also downloads NOAA CPC's rel

• iod-mode-index

  Compute the Indian Ocean Dipole Mode Index (DMI) from a gridded temperature-anomaly Zarr, forecast or observed: the latitude-weighted mean anomaly over the western box minus the eastern box, plus each box mean. Use when a task needs an IOD index computed from model or observation fields, for every l

• kenya-forecast-fetch

  Fetch a published forecast grid from the public KMSA / Rhiza Kenya forecasts archive (gs://kenya-forecasting-data) for one init date, as a weather-skills Zarr. Products: native ECMWF S2S precip (~1.5°, 101 members), its ~0.05° CHIRPS-resolution weekly downscale (101 members) and daily downscale (ens

• kmsa-wrf-fetch

  Private use only, requires credentials. Read one KMSA WRF forecast run, the 7- to 8-day run or the 3-day daily run, at 3-hourly steps on a ~0.036° Kenya grid, as a weather-skills forecast Zarr: total precipitation and 2 m temperature, or for runs kept as full WRF output, every WRF field (winds, pres

• mjo-forecast-fetch

  Download the latest CPC CLIVAR Madden–Julian Oscillation (MJO) Wheeler–Hendon phase-space forecast diagram as a PNG, for one of GEFS, GEFS extended, CFSv2, CMC, JMA, ECMWF, ECMWF extended range, or BoM ACCESS-S1. Use when a briefing or answer needs a model's published MJO RMM forecast plot.

• mjo-rmm-index

  Compute the Wheeler-Hendon RMM (Real-time Multivariate MJO) index, RMM1/RMM2 plus amplitude and phase, for every member of an ensemble forecast. It uses 15S-15N OLR and 850/200 hPa zonal wind, ERA5 EOFs (2006-2022) and a 120-day running mean from the public africa-forecasting-data bucket, with the a

• ncics-mjo-png

  Download an NCICS tropical-monitoring figure as a PNG: wave-filtered latitude-longitude maps or longitude-time Hovmöller diagrams of OLR, winds, velocity potential, streamfunction, shear, or precipitable water, showing the MJO, Kelvin, Rossby, and other equatorial waves. Use when a briefing or answe

• olr-wave-filter

  Filter an ensemble OLR forecast into convectively coupled equatorial waves: MJO, Kelvin, equatorial Rossby (ER), mixed Rossby-gravity / tropical depression (MRG/TD) and a low-frequency band, for every member. Uses the padded wavenumber-frequency method of Janiga et al. (2018) with a two-year ERA5 le

• plot-rmm-phase

  Render a Wheeler-Hendon RMM phase-space diagram PNG of an MJO forecast from mjo-rmm-index output. It shows ensemble-member dots on chosen forecast days, the ensemble-mean track with weekly markers, the recent observed track, and BoM's RMM for comparison. Use when a briefing needs a freshly computed

• plot-wave-hovmoller

  Render a time-longitude (Hovmöller) PNG of filtered OLR from olr-wave-filter. Styles: the NCICS-monitor look (MJO, Kelvin, ER and low-frequency contours over the OLR anomaly), wave-amplitude contours, multi-wave contour panels, or ensemble agreement on wave activity. Use when a briefing needs a trop

• plot-wave-phase

  Render a local equatorial-wave phase PNG at one longitude from olr-wave-filter output: weekly or daily phase roses (a wind rose of the wave phase across ensemble members). Use when a briefing asks whether a Kelvin wave, ER wave or the MJO will bring wet or dry phases to a place such as Kenya.

• resolve-chc-region

  Resolve a bundled CHC region to an N/W/S/E bbox and optionally its boundary GeoJSON: the Tana River basin, Kenya's official KNSDI national outline and 47 county boundaries, the Kenya OND briefing box (central and eastern Kenya), and East Africa cut off at 15°S. Use whenever a task names the Tana Riv

• subc-mme-fetch

  Fetch one CHC SubC multi-model-ensemble outlook (7-, 15-, or 30-day) for an init date as a weather-skills forecast Zarr: the ensemble mean and anomaly of precipitation, near-surface air, max, min, dewpoint, or surface temperature on a global 1° grid, optionally cut to a bbox. Use when a task needs a

Subagents (1)

• chc

  Climate Hazards Center data assistant. Composes the bundled CHC skills (SubC MME fetch, IOD mode index, BoM IOD/ENSO observation graphs, analog years, CPC MJO forecast diagrams, NCICS MJO maps and Hovmöllers, OLR equatorial-wave filtering and its Hovmöllers / local phase roses, the RMM MJO index and

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