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Comunidad: Ciencias del Geoespacio y Astronomía

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Por | Prado Fasanando, Josep Josué (Universidad Nacional José Faustino Sánchez Carrión, 2021)

Caracterización de la capa límite atmosférica en el Valle del Mantaro empleando radiosondas y sensores remotos

Esta investigación tiene como objetivo principal realizar una caracterización de la Capa Límite Atmosférica (CLA) desarrollando un algoritmo que permita estimar la altura de la CLA usando un Radar Perfilador de Vientos y Capa Límite (BLTR) estudiando una zona con una topografía compleja como lo es el ...
- Capa Límite
- Retrodispersión
- Ceilómetro
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Por | Milla, Marco; Kuyeng, Karim; Espinoza, Juan C.; De la Jara, César (Instituto Geofísico del Perú, 2021-06)

Jicamarca Radio Observatory 2021 Status

The Jicamarca Radio Observatory is a research facility of the Geophysical Institute of Peru dedicated to the study of the equatorial ionosphere and upper atmosphere. It is located near the city of Lima, Peru. Its main instrument is one of the largest Incoherent Scatter radars in the World. This ...
- Jicamarca Radio Observatory
- Jicamarca radar
- Ionospheric radar
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Por | Gonzales, L.; Espinoza, J.; Verástegui, J.; Ortecho, D.; Milla, Marco; Belleza, A. (Instituto Geofísico del Perú, 2021-06)

Upgrade of Automatic Beam Switching (ABS) at Jicamarca Radio Observatory

Particular beam orientations are required for each experiment to study different atmospheric phenomena at the Jicamarca Radio Observatory (JRO), For an antenna array, this change can be done manually or remotely. JRO has had a beam steering system since 2005 for the remote operation. The remote operation ...
- Phase shifters
- Array antennas
- Beam steering system
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Por | Flores, R.; Milla, Marco; Kuyeng, K. (Instituto Geofísico del Perú, 2021-06)

Spectra analysis in Faraday/Double Pulse experiment at Jicamarca Radio Observatory (JRO)

At the Geophysical Institute of Peru, specifically on its Jicamarca Radio Observatory (JRO) facility, there are different operation modes to obtain the main parameters of the equatorial ionosphere. One of these modes is the Faraday/Double Pulse which estimates plasma densities and electron/ion ...
- Electron density
- Spectra analysis
- Remove outliers
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Por | Barbaran Meza, J.; Rojas, R.; Navarro, L.; Veliz, Oscar; De la Jara, César; Milla, Marco (Instituto Geofísico del Perú, 2021-06)

Reprocessing of data from Fabry-Perot interferometers (FPI) belonging to the IGP network of optical instruments

IGP network of optical instruments consist of two types of imaging instrumentation: Fabry-Perot Interferometers (FPI) and All-Sky imagers (ASI). The FPI can obtain two dimensional interferograms that are used to study the dynamics of the upper atmosphere. Since the deployment of the first FPI in 1985 ...
- Fabry-Perot interferometers
- Neutral winds
- Optical instruments
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Por | Yupanqui, Diego; Milla, Marco; Kuyeng, Karim; Ocaña, Eladio; Oré, Ernesto (Instituto Geofísico del Perú, 2021-06)

Radar imaging comparison methods

In this work, we are conducting a comparison of different methods to solve a one-dimensional aperture-synthesis radar imaging problem based on simulations. For this purpose, we are going to consider the geometry of the Jicamarca ionospheric radar. These methods are going to be applied to the generation ...
- Radar imaging
- Inverse problem
- Spread-F
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Por | Aricoché, J.; Rojas, E.; Milla, Marco (Instituto Geofísico del Perú, 2021-06)

Modeling ionograms with deep neural networks: applications to foF2 forecasting

The ionosphere state parameters are of fundamental importance not only for radio communication but also for space weather. As most of the space phenomena, the dynamics are governed by nonlinear processes that make forecasts a challenging endeavor. We now have available enormous datasets and ubiquitous ...
- Ionograms
- Neural networks
- foF2
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Por | Verastegui, J.; Rojas, J.; Tupac, I.; Caceres, D.; Gonzales, L. (Instituto Geofísico del Perú, 2021-06)

JRO digital receiver modernization using ADCs with high-speed JESD204B data interface and FPGAs

The latest data acquisition system running at the Jicamarca Radio Observatory for the main radar has been used for more than five years now. Although there are no major inconveniences on the performance there have been some problems with internal interferences which are usually unpredictable and related ...
- Acquisition System
- FPGA
- JESD204B
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Por | Fajardo, G.; Pacheco, Edgardo E. (Instituto Geofísico del Perú, 2021-06)

Exploration of machine learning tools developed for the study of space weather and its impact on position approximation in GNSS systems

The equatorial ionosphere has been extensively studied using purely physical models, however in recent years, with a large amount of data, it has been possible to improve these models using machine learning techniques. In this paper, we share the research results aimed to evaluate the influence of ...
- GNSS
- Machine learning
- Space weather
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Por | Suclupe, J.; Milla, Marco; He, M.; Chau, J. L. (Instituto Geofísico del Perú, 2021-06)

Diurnal and semidiurnal tides in the Mesosphere and Lower Thermosphere over the central coast of Peru

It has been over a year since measurements of mesosphere and lower thermosphere (MLT) winds have been obtained with the SIMONe Peru radar. This modern multistatic specular meteor radar, placed on the central coast of Peru, has its transmitter located at the Jicamarca Radio Observatory (11.95° S, 76.87° ...
- Diurnal and semidiurnal tides
- Equatorial MLT region
- Meteor radar
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