IONOSPHERIC STUDIES IN COLOMBIA

Jaime Villalobos, Ph.D.

Universidad Nacional de Colombia

November 7 2011

Departamento de FísicaGrupo ARGOS

Agenda

• ARGOS Research Group• LISN network in Colombia• What do we do?• Future projects

ARGOS (research group)

– Jaime Villalobos, Ph.D.– Juan Carlos Palacios, Ms.Sc.– Joan Pluas– Javier Duque– Juan Guillermo Melgarejo– Jair Laguna– Miguel Duran– Freddy Forero– Raúl Carrera

Instituciones que hacen posible esta investigación

REICO:Red (network)

EstacionesIonosféricasCOlombianas

REICO

Villa de LeyvaC

Tumaco

Colombian Ionospheric Stations Network

– Research facilities -– Bogotá (3 Receivers: GPS, UHF,

VHF)– Santa Marta (1 GPS Receiver)– Leticia (1 GPS Receiver)– Leticia (1 magnetometer)– Popayán (1 GPS Receiver)- Manizales (1 Receiver: UHF) FUTURE – Arauca (1 GPS Receiver Nov 2011)– Tumaco (1 GPS Receiver Dec 2011)– Villa de Leyva (1 Prospect Imager)- Arauca (1 Prospect Ionosonde)

SCION LEO-2 Prototipe receiver

Scion Associates

Colombia is located under the northern anomally

Santa Marta

Santa Marta

ARGOS

Santa Marta

LETICIA

Leticia, Amazonas

Rio Amazonas, Leticia

ESTACION IONOSFERICA TÌPICADE RASTREO SATELITAL PERMANENTE

Universidad Nacional de Colombia, Sede Amazonía, Leticia

ESTACION IONOSFERICA TÌPICADE RASTREO SATELITAL PERMANENTE

ESTACION IONOSFERICA TÌPICADE RASTREO SATELITAL PERMANENTE

Estación Ionosférica GPS, Leticia

LETICIA - MAGNETOMETER

Leticia Magnetometer

Aligned meridionally with

Puerto Maldonado, Perú

Casleo, El Leoncito, Argentina

GPS station in Bogotá

MICOModelo Ionosférico Colombiano

- First approach to develop a model -

MICO (macaco or monkey )Ionospheric Colombian Model

We developed a model to provide information of TEC in the

ionosphere

Slant TEC

PseudorangeCarrier phase

Observation files

Estimation of orbits

Navigation files

Comparison with other models

MICO

Behaviour of TEC variations

CME on June 4th 2011

TEC Differences when EQUINOXIESSOLSTICES

FUTURE

DATA ASSIMILATIONIonospheric data

APPLICATIONS

Communications

GBAS navigation in Colombia

ESTRATEGY

INGEOMINAS

(Interaction with other local networks)

muito obrigado

ionosfera@unal.edu.cojvillalobos@unal.edu.co