# Presentation: 180037

## 4th International GPM Planning MeetingGreenbelt, June 2004

- Ground Validation Network
*Catalonia Radar Network*

## Slide 2

## Slide 3

## Compromise with GPM mission to design and operate a validation supersite

- Water Agency of Catalonia

- VOLTAIRE project (EC)

- Group of Applied Research on Hydrometeorology

- Meteorological Service of Catalonia

- Generalitat de Catalunya

## Other collaborating Institutions

**CLABSA** Sewer Network management company
**INM** National Meteorological Institute of Spain
**UB** University of Barcelona

## Who the Catalan Meteorological Service is?

**www.meteocat.com**

## Brief history

- 2001: The Catalan Meteorological Service becomes a public company after the Catalan Meteorological Law.

- 1921: Creation of the Catalan Meteorological Service (SMC)

- 1979:	Catalan regional Law (approved by the Spanish Gov.):
- Meteorological responsibilities are given to Catalonia

- 1996: The new SMC is created, as a service of the
- 	Catalan Environmental Department

## -Official assessment to Civil Protection in Catalonia

- Free deliver of basic information
- Official assessment to Catalan Regional Administration
- -Unification of Meteorological Network existing
- -Focusing on regional and local phenomena

- 2001: Catalan Meteorological Law is approved, with this important items:

## CATALONIA RADAR NETWORK

**- Starting point in 1997**
**- General aim of the project**
**- Why 4 radar?**
**- Where?**

## To cover Catalonia with low power radar in order to: 

**get quantitative information near to ground **
**obtain the field precipitation**
**link radar data with an hidrologycal model**
**How much will rain?/How much will increase the level of the river?**
**- We start to work with ACA and with GRAHI-UPC team in 2001 **

- The whole project

## Starting point in 1997

**Barcelona**

**PBE**

**80 km**

**1997**

## Vallirana Radar

## Why 4 radars?

**Barcelona**

**310 km**

## The easy solution

**Barcelona**

**310 km**

**80 km**

## Vallirana radar coverage

**PBE**

## Radar Network

**Barcelona**

**PDA**

**2002**

## Puig d’Arques Radar

## Radar Network

**Barcelona**

**CDV**

**2003**

## Panadella Radar

## Radar Network. The Catalan Precipitation Laboratory

**Barcelona**

**LMI**

**2005**

- Coverage:
- More than 50.000 km2

## Technical specifications:

**- C Band (5.60-5.66 GHz)**
**- Maximum rotation velocity: 5 RPM**
**- Peak Power: 7.5 kW**
** ****PRF: 600-1500 Hz**
** ****Pulse length: 5/10 microseconds**
**Using pulse compression with the RVP-8 digital processor-receiver**

## From 2005 on, the supersite area (about 15000 Km2) will be seen by al least three different radars

- From 2005 on, the supersite area (about 15000 Km2) will be seen by al least three different radars

- The area will provide a 3D rainfall field of quite homogeneous quality
- Ideal for the GPM ground validation

## Complementary equipment

- Barcelona daily Radiosounding
- 3 superdense GPM pixels (5 raingauges + disdrometer)

## Development of an integrated system of hydrometeorological forecast(EHIMI)

**Development of an integrated system of hydrometeorological forecast****(EHIMI)**

## lost azimuths treatment
stability
screening effects
ground clutter suppression
attenuation

- lost azimuths treatment
- stability
- screening effects
- ground clutter suppression
- attenuation

- - Bright band identification
- - Convection identification
- - Surface rainfall (VPR correction)
- - Radar-raingauge combination
- - Forecast
- - Accumulation
- - Hydrological alerts
- - Composition

**GENRAD**

## Slide 26

## Slide 27

## MoVHi (visualization and hidrological model)

**interpolation from raingauges**

**MoVHi ****(visualization and hidrological model)**

**Notes:**
- En aquest camp de pluja he posat la paleta diferent fora de l’àrea d’influència
- triangles taronges: pluviògrafs que funcionen aparentment bé
- triangles negres: pluviògrafs anòmals

## MoVHi (visualization and hidrological model)

**product of radar rainfall**

**MoVHi ****(visualization and hidrological model)**

**Notes:**
- És tracta del mateix pas de temps que al cas anterior
- No tenim imatge del merging

## MoVHi (visualización y cálculo hidrológico)

**accumulated rain from raingauges**

**MoVHi ****(visualización y cálculo hidrológico)**

**Notes:**
- Pluja acumulada a partir dels pluviògrafs (en radar no ho tenim encara). Es dóna per diferents períodes.
- Aquí he posat les isolínies de pluja, i he tret la pluja fora de l’àrea d’influència
- He posat la taula d’informació visible per si vols extendre’t dient que es dona informació de valors acumulats.
	- pluja acumulada a la conca en 1, 2 i 3 dies (també transformada a volum)
	- volum acumulat en 1, 2 i 3 dies (a partir dels registres i del model)

## Thank you for your attention