Identification

Title

Improving the impact of radio occultation observations on numerical forecasts of tropical cyclones

Abstract

The Global Positioning System (GPS) Radio Occultation (RO) is an active remote sensing technique, which is complementary to passive microwave and infrared sounders and microwave imagers. Since its launch in 2006, Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) RO data have been assimilated by the National Centers for Environmental Prediction (NCEP; Cucurull et al., 2013), the European Centre for Medium-Range Weather Forecasts (ECMWF; Healy and Thépaut 2006), and other global numerical weather prediction (NWP) centers in their operational systems. The high accuracy, precision, and small biases (Anthes, 2011) make RO observations useful in calibrating microwave, infrared sounding systems, as well as radiosondes (Anthes, 2011; Ho et al., 2019). Because RO data can be assimilated without bias corrections, they can be considered “anchor references” in both NWP and climate reanalysis (e.g., Poli et al., 2010; Cucurull et al., 2014; Aparicio and Laroche, 2015), preventing the model from drifting to its own biased climate. All the centers had shown positive impacts of the COSMIC RO data on global forecasts (Anthes, 2011; Ho et al., 2019). The primary impact of RO data in global NWP systems is between 7- and 35-km altitudes (Poli et al., 2010).

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d7bz69j2

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2019-12-01T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

This work is dedicated to the Public Domain.

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact