NCEP/NCAR Reanalysis Data, Water Vapor

Dataset Availability

1948-01-01T00:00:00Z–2024-04-12T18:00:00Z

Dataset Provider

NCEP

Earth Engine Snippet

ee.ImageCollection("NCEP_RE/surface_wv")

Tags

atmosphere climate geophysical ncep noaa reanalysis vapor

precipitable

Description

The NCEP/NCAR Reanalysis Project is a joint project between the National Centers for Environmental Prediction (NCEP, formerly "NMC") and the National Center for Atmospheric Research (NCAR). The goal of this joint effort is to produce new atmospheric analyses using historical data as well as to produce analyses of the current atmospheric state (Climate Data Assimilation System, CDAS). The NCEP/NCAR Reanalysis 1 project is using a state-of-the-art analysis/forecast system to perform data assimilation using past data from 1948 to the present. The data have 6-hour temporal resolution (0000, 0600, 1200, and 1800 UTC) and 2.5 degree spatial resolution.

Bands

Resolution
278300 meters

Bands

Name	Units	Min	Max	Description
pr_wtr	kg/m^2	-8.2*	89.8*	Total column water vapor

* estimated min or max value

Terms of Use

Terms of Use

There are no restrictions on the use of these datasets.

Citations

Citations:

• Kalnay et al., 1996, The NCEP/NCAR 40-Year Reanalysis Project. Bull. Amer. Meteor. Soc., 77, 437-471. doi:10.1175/1520-0477(1996)0770437:TNYRP\2.0.CO;2.

Explore with Earth Engine

Important: Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please register for Earth Engine access.

Code Editor (JavaScript)

var dataset = ee.ImageCollection('NCEP_RE/surface_wv')
                  .filter(ee.Filter.date('2018-08-01', '2018-08-15'));
var totalColumnWaterVapor = dataset.select('pr_wtr');
var totalColumnWaterVaporVis = {
  min: 0.0,
  max: 60.0,
  palette: ['0000ff', '00ffff', '008000', 'ffff00', 'ff0000'],
};
Map.setCenter(-158.2, 2.81, 2);
Map.addLayer(
    totalColumnWaterVapor, totalColumnWaterVaporVis,
    'Total Column Water Vapor');

Open in Code Editor

NCEP/NCAR Reanalysis Data, Water Vapor

The NCEP/NCAR Reanalysis Project is a joint project between the National Centers for Environmental Prediction (NCEP, formerly "NMC") and the National Center for Atmospheric Research (NCAR). The goal of this joint effort is to produce new atmospheric analyses using historical data as well as to produce analyses of the current …

NCEP_RE/surface_wv, atmosphere,climate,geophysical,ncep,noaa,reanalysis,vapor

1948-01-01T00:00:00Z/2024-04-12T18:00:00Z

Google Earth Engine

https://developers.google.com/earth-engine/datasets