/vgrib2

A library for parsing grib2 files written in Typescript

Primary LanguageTypeScriptMIT LicenseMIT

npm version

vgrib2

A library for parsing GRIB files written entirely in Typescript

Installation

$ npm install vgrib2

Usage

Parse GRIB File

import fs from 'fs'
import { GRIB } from 'vgrib2'

const gribFile = fs.readFileSync('./path/to/file.grib2')

const grib = GRIB.parse(gribFile)
// No Table Lookup (useful for adding new tables)
const gribNoLookup = GRIB.parseNoLookup(gribFile)

Tables

List of tables that have been ported from GRIB2 Doc

Table 0

Table Name Status
Table 0.0 - Discipline of Processed Data

Table 1

Table Name Status
Table 1.0 - GRIB Master Tables Version Number
Table 1.1 - GRIB Local Tables Version Number
Table 1.2 - Significance of Reference Time
Table 1.3 - Production Status of Data
Table 1.4 - Type of Data
Table 1.5 - Identification Template Number
Table 1.6 - Type of Calendar

Table 2

N/A

Table 3

Table Name Status
Table 3.0 - Source of Grid Definition
Table 3.1 - Grid Definition Template Number
Table 3.2 - Shape of the Reference System
Table 3.3 - Resolution and Component Flags
Table 3.4 - Scanning Mode
Table 3.5 - Projection Center
Table 3.6 - Spectral Data Representation Type
Table 3.7 - Spectral Data Representation Mode
Table 3.8 - Grid Point Position
Table 3.9 - Numbering Order of Diamonds
Table 3.10 - Scanning Mode for One Diamond
Table 3.11 - Interpretation of List of Numbers at end of section 3
Table 3.15 - Physical Meaning of Vertical Coordinate
Table 3.20 - Type of Horizontal Line
Table 3.21 - Vertical Dimension Coordinate Values Definition

Table 4

Table Name Status
Table 4.0 - Product Definition Template Number
Table 4.1 - Parameter Category by Product Discipline
Table 4.2 - Parameter Number by Product Discipline and Parameter Category
Table 4.3 - Type of Generating Process
Table 4.4 - Indicator of Unit of Time Range
Table 4.5 - Fixed Surface Types and Units
Table 4.6 - Type of Ensemble Forecast
Table 4.7 - Derived Forecast
Table 4.8 - Clustering Method
Table 4.9 - Probability Type
Table 4.10 - Type of Statistical Processing
Table 4.11 - Type of Time Intervals
Table 4.12 - Operating Mode
Table 4.13 - Quality Control Indicator
Table 4.14 - Clutter Filter Indicator
Table 4.15 - Type of Spatial Processing used
Table 4.16 - Quality Value Associated with Parameter
Table 4.91 - Type of Interval
Table 4.201 - Precipitation Type
Table 4.202 - Precipitable Water Category
Table 4.203 - Cloud Type
Table 4.204 - Thunderstorm Coverage
Table 4.205 - Presence of Aerosol
Table 4.206 - Volcanic Ash
Table 4.207 - Icing
Table 4.208 - Turbulence
Table 4.209 - Planetary Boundary-Layer Regime
Table 4.210 - Contrail Intensity
Table 4.211 - Contrail Engine Type
Table 4.212 - Land Use
Table 4.213 - Soil Type
Table 4.215 - Remotely Sensed Snow Coverage
Table 4.216 - Elevation of Snow Covered Terrain
Table 4.217 - Cloud Mask Type
Table 4.218 - Pixel Scene Type
Table 4.219 - Cloud Top Height Quality Indicator
Table 4.220 - Horizontal Dimension Processed
Table 4.221 - Treatment of Missing Data
Table 4.222 - Categorical Result
Table 4.223 - Fire Detection Indicator
Table 4.224 - Categorical Outlook
Table 4.225 - Weather
Table 4.227 - Icing Scenario (Weather/Cloud Classification)
Table 4.230 - Atmospheric Chemical or Physical Type
Table 4.233 - Aerosol Type
Table 4.234 - Canopy Cover Fraction
Table 4.235 - Wave-Generated Wave Spectral Description
Table 4.236 - Soil Texture Cover Fraction
Table 4.240 - Type of Distribution Function
Table 4.241 - Coverage Attributes
Table 4.242 - Tile Classification
Table 4.243 - Tile Class
Table 4.244 - Quality Indicator

Table 4.2-X-X

Discipline 0 - Meteorological products

Table Name Status
Table 4.2-0-0 - Temperature
Table 4.2-0-1 - Moisture
Table 4.2-0-2 - Momentum
Table 4.2-0-3 - Mass
Table 4.2-0-4 - Short wave radiation
Table 4.2-0-5 - Long wave radiation
Table 4.2-0-6 - Cloud
Table 4.2-0-7 - Thermodynamic stability indices
Table 4.2-0-13 - Aerosols
Table 4.2-0-14 - Trace gases (e.g. Ozone, CO2)
Table 4.2-0-15 - Radar
Table 4.2-0-16 - Forecast Radar Imagery
Table 4.2-0-17 - Electrodynamics
Table 4.2-0-18 - Nuclear/radiology
Table 4.2-0-19 - Physical atmospheric Properties
Table 4.2-0-20 - Atmospheric Chemical Constituents
Table 4.2-0-190 - CCITT IA5 string
Table 4.2-0-191 - Miscellaneous

Discipline 1 - Hydrologic products

Table Name Status
Table 4.2-1-0 - Hydrology Basic
Table 4.2-1-1 - Hydrology Probabilities
Table 4.2-1-2 - Inland Water and Sediment Properties

Discipline 2 - Land Surface products

Table Name Status
Table 4.2-2-0 - Vegetation/Biomass
Table 4.2-2-1 - Agricultural/aquacultural special products
Table 4.2-2-2 - Transportation related products
Table 4.2-2-3 - Soil Products
Table 4.2-2-4 - Fire Weather Products
Table 4.2-2-5 - Glaciers and Inland Ice Products

Discipline 3 - Space products

Table Name Status
Table 4.2-3-0 - Image format Products
Table 4.2-3-1 - Quantitative Products
Table 4.2-3-2 - Cloud Properties
Table 4.2-3-3 - Flight Rules Conditions
Table 4.2-3-4 - Volcanic Ash
Table 4.2-3-5 - Sea-surface Temperatur
Table 4.2-3-6 - Solar radiation

Discipline 4 - Space Weather products

Table Name Status
Table 4.2-4-0 - Temperature
Table 4.2-4-1 - Momentum
Table 4.2-4-2 - Charged Particle Mass and Number
Table 4.2-4-3 - Electric and Magnetic Fields
Table 4.2-4-4 - Energetic Particles
Table 4.2-4-5 - Waves
Table 4.2-4-6 - Solar Electromagnetic Emissions
Table 4.2-4-7 - Terrestrial Electromagnetic Emissions
Table 4.2-4-8 - Imagery
Table 4.2-4-9 - Ion-Neutral Coupling

Discipline 10 - Oceanographic products

Table Name Status
Table 4.2-10-0 - Waves
Table 4.2-10-1 - Currents
Table 4.2-10-2 - Ice
Table 4.2-10-3 - Surface Properties
Table 4.2-10-4 - Sub-surface Properties

Table 5

Table Name Status
Table 5.0 - Data Representation Template Number
Table 5.1 - Type of Original Field Values
Table 5.2 - Matrix Coordinate Value Function Definition
Table 5.3 - Matrix Coordinate Parameter
Table 5.4 - Group Splitting Method
Table 5.5 - Missing Value Management for Complex Packing
Table 5.6 - Order of Spatial Differencing
Table 5.7 - Precision of Floating Point Numbers
Table 5.40 - Type of Compression

Table 6

Table Name Status
Table 6.0 - Bit Map Indicator

Table 7

Table Name Status
Table 7.0 - Data Template Number