Ground-based observation of solar UV radiation in Japan, Brazil and Chile



Document title: Ground-based observation of solar UV radiation in Japan, Brazil and Chile
Journal: Revista brasileira de geofisica
Database: PERIÓDICA
System number: 000335151
ISSN: 0102-261X
Authors: 1
2
3
4
1
5
6
7
Institutions: 1Kagoshima National College of Technology, Department of General Education, Kagoshima. Japón
2Rikkyo University, Department of Physics, Tokio. Japón
3Takushoku University, Faculty of Engineering, Tokio. Japón
4Instituto Nacional de Pesquisas Espaciais, Santa Maria, Rio Grande do Sul. Brasil
5Universidade de Sao Paulo, Instituto de Astronomia, Geofisica e Ciencias Atmosfericas, Sao Paulo. Brasil
6Universidad de Magallanes, Punta Arenas, Magallanes. Chile
7Universidad de Concepción, Departamento de Física, Concepción. Chile
Year:
Volumen: 25
Pages: 17-25
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
English abstract Ground-based observations of solar ultraviolet (UV) radiations have been carried out in Tokyo, Japan, Sao Martinho da Serra, Brazil, and Punta Arenas, Chile. The initial results showed that the observations were concerned with the total amount of ozone. Variations in the flux ratio between UV-B and UV-A radiation in both hemispheres show a clear anti-correlation with the amount of ozone along line-of-sight. As a result of least-square fitting, exponential functions between the UV-ratio (UV-B/UV-A) and effective ozone are obtained. Radiometer data at Punta Arenas also show sudden enhancement of UV-B radiation in the beginning of spring, indicating that the arrival of the ozone hole can be detected from the ground
Portuguese abstract Medidas de superıcie de radiacao solar ultravioleta (UV) tem sido feitas em Tokio, Japao, Sao Martinho da Serra, Brasil e Punta Arenas, Chile. Sao apresentados resultados iniciais de observacoes de ozonio total. Variacoes do fluxo da razao de UV-B e UV-A em ambos os hemisferios apresentaram anti-correlacoes claras com o ozonio. Como resultado do ajuste, funcoes exponenciais entre a razao e o ozonio efetivo foram obtidas. Os dados do Radiometro de Punta Arenas tambem apresentaram aumento subito do UV-B no inıcio na primavera. Isto significa que as evidencias para a chegada do buraco de ozonio podem ser detectadas a partir de equipamentos de superfıcie
Disciplines: Geociencias
Keyword: Geofísica,
Ingeniería de instrumentos,
Ozono,
Radiación ultravioleta,
Radiómetros,
Espectrorradiometría,
Japón,
Brasil,
Chile
Keyword: Earth sciences,
Geophysics,
Instrumentation engineering,
Ozone,
Ultraviolet radiation,
Radiometers,
Spectroradiometry,
Japan,
Brazil,
Chile
Full text: Texto completo (Ver PDF)