Geografia
Hello!
I am really sorry that I cannot write Portuguese, so I hope that English is OK.
I am writing to you from Mount Erebus in Antarctica. We are living here in a hut which has a kitchen and dining room. We also have a garage where we can repair things, and there is a toilet there. At night we sleep in tents inside very thick sleeping bags, with 2 camping mats beneath us.
We are here to do 2 experiments. One is a seismology experiment, where some seismometers which measure movements of the ground have been spread over the volcano, measure the speed at which shock waves travel through the volcano. This information gives a sort of x-ray of the volcano, because the different speeds of shock waves indicated different types of matter. From this information hopefully we can work out the internal structure of the volcano.
The other experiments involve measuring gases released from the volcano. This is done by using a spectrometer to measure which parts of light arrive, and which parts are blocked out by the gases. Each gas has a "signature" because it blocks out certain parts of light. The sources of light used are the lava lake, a lamp, and the sun. This work has found that the volcano has a "pulse" (it has cycles of gas release). This is related to how the lava moves up to the lava lake.
This work is to find out better how the volcano works.
I hope that you all have a great 2009!
from Anna
****
Anna Barford
Department of Geography
University of Sheffield
Winter Street
Sheffield
S10 2TN
U.K.
http://www.shef.ac.uk/geography/students/pg/annabarford.html
- Antarctic Ice May Hide ?world?s Largest? Canyon
Researchers say they believe they have found the world?s largest canyon - located under the Antarctic ice. Researchers believe they have found a massive canyon hiding under the Antarctic ice. Writing in the journal Geology, a team of researchers...
- Pensar Sobre Vulcões
Thinking About A Volcano from Simon Jones ...
- Prémios Da Geographical Association
"The GA Awards are given for materials associated with geography in schools and colleges which are considered to make a significant contribution to geographical education and professional development." Geographical Association O prémio "Ouro" deste ano...
- Forum " A Geographer In Antártica"
Skidoo Respostas da geógrafa Anna Barford ao Fórum "Uma geógrafa na Antárctida", que iniciei na disciplina "e-geografia" da plataforma Moodle da minha escola: 1 - As an extreme environment and very unfavorable to the species, what living things (plants...
- Postal Da Antárctida
(Foto: Anna Barford) Acabei de receber este postal, em forma de fotografia, da Anna, que se encontra na Antárctida, mais exactamente no Monte Erebus, a acompanhar um projecto de investigação sobre o vulcanismo. É a sua retribuição aos meus votos...
Geografia
Notícias frescas (e bem frescas) chegadas da Antárctida via email
(Fotos: Anna Barford)
Hello!
I am really sorry that I cannot write Portuguese, so I hope that English is OK.
I am writing to you from Mount Erebus in Antarctica. We are living here in a hut which has a kitchen and dining room. We also have a garage where we can repair things, and there is a toilet there. At night we sleep in tents inside very thick sleeping bags, with 2 camping mats beneath us.
We are here to do 2 experiments. One is a seismology experiment, where some seismometers which measure movements of the ground have been spread over the volcano, measure the speed at which shock waves travel through the volcano. This information gives a sort of x-ray of the volcano, because the different speeds of shock waves indicated different types of matter. From this information hopefully we can work out the internal structure of the volcano.
The other experiments involve measuring gases released from the volcano. This is done by using a spectrometer to measure which parts of light arrive, and which parts are blocked out by the gases. Each gas has a "signature" because it blocks out certain parts of light. The sources of light used are the lava lake, a lamp, and the sun. This work has found that the volcano has a "pulse" (it has cycles of gas release). This is related to how the lava moves up to the lava lake.
This work is to find out better how the volcano works.
I hope that you all have a great 2009!
from Anna
****
Anna Barford
Department of Geography
University of Sheffield
Winter Street
Sheffield
S10 2TN
U.K.
http://www.shef.ac.uk/geography/students/pg/annabarford.html
Está prometido pela Anna Barford um artigo com o relato da experiência num campo científico na Antárctida, a publicar num dos números da APOGEO de 2009. Recordo que a Anna é co-autora do projecto Worldmapper, que deu origem ao livro "Atlas of the real world - Mapping the way we live".
- Antarctic Ice May Hide ?world?s Largest? Canyon
Researchers say they believe they have found the world?s largest canyon - located under the Antarctic ice. Researchers believe they have found a massive canyon hiding under the Antarctic ice. Writing in the journal Geology, a team of researchers...
- Pensar Sobre Vulcões
Thinking About A Volcano from Simon Jones ...
- Prémios Da Geographical Association
"The GA Awards are given for materials associated with geography in schools and colleges which are considered to make a significant contribution to geographical education and professional development." Geographical Association O prémio "Ouro" deste ano...
- Forum " A Geographer In Antártica"
Skidoo Respostas da geógrafa Anna Barford ao Fórum "Uma geógrafa na Antárctida", que iniciei na disciplina "e-geografia" da plataforma Moodle da minha escola: 1 - As an extreme environment and very unfavorable to the species, what living things (plants...
- Postal Da Antárctida
(Foto: Anna Barford) Acabei de receber este postal, em forma de fotografia, da Anna, que se encontra na Antárctida, mais exactamente no Monte Erebus, a acompanhar um projecto de investigação sobre o vulcanismo. É a sua retribuição aos meus votos...