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Auteur principal:	Helder José Farias da Silva
Format:	Artículo científico
Langue:	pt
Publié:	Universidade Federal de Santa Maria 2016
Sujets:	Estudios Ambientales FAO Penman Monteith Teste de Homogeneidade Variabilidade climática
Accès en ligne:	https://www.redalyc.org/articulo.oa?id=467546196030
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Análise mensal, sazonal e interanual da Evapotranspiração potencial para o leste do estado do Acre, Brasil. Helder José Farias da Silva Paulo Sergio Lucio Irving Foster Brow Estudios Ambientales FAO Penman Monteith Teste de Homogeneidade Variabilidade climática O objetivo deste trabalho foi de investigar aspectos climatológicos (caracterização) sazonais na Evapotranspiração potencial para o leste do estado do Acre, tendo como unidade de estudo o município de Rio Branco, capital do Estado, conside rando um período de 34 anos: 1980 a 2013, a partir de dados mensais de uma estação meteorológica de superfície convencional. Como metodologia adotou -se realizar, primeiramente, a consistência dos dados meteorológicos desta forma foi feito o preenchimento d e falhas através da imputação de dados faltosos na série temporal por meio do Multivariate Time Series Data Imputation e testes estatísticos de homogeneidade dos dados (Run teste ou de seqüência) sugerido pela Org anização Meteorológica Mundial por meio de sua nota técnica nº 81 . O método indireto de Penmann -Montheith foi utilizado para o cálculo da E evapotranspiração potencial. Os resultados deste trabalho, mediante análise da estatística descritiva, permitiram concluir que a média anual da ETp é de 3,54 mm d -1 , com uma sazonalidade bastante marcante apresentando um mínimo em junho de 2,93 mm d -1 e um máximo no mês de outubro de 4,13 mm d -1 com um acumulado médio anual de 1290,99 mm e Desvio Padrão de 53,41 mm e que os meses de junho e agosto são o que apres entam maior variabilidade e o intervalo de outubro a fevereiro o de menor variabilidade. 2016 artículo científico 0100-8307 https://www.redalyc.org/articulo.oa?id=467546196030 pt http://www.redalyc.org/revista.oa?id=4675 Ciência e Natura application/pdf Universidade Federal de Santa Maria Ciência e Natura (Brasil) Num.1 Vol.38

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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