0
The climate phenomenon known as La Niña, which takes place at intervals between three and five years, on average, has already begun to affect the planet. Changes consist In the cooling of the central and center-east equatorial range of the Pacific Ocean, when their temperatures fall at least 0.5ºC.
Time Forecast: La Niña comes in February / Photo: depositphotos.com / simplyamazing
According to data from the United States National Ocean and Atmospheric Administration (NOAA), the periods when it will be possible to feel the greatest effects of La Niña are the months between March and May.
Professor at the Federal University of Acre (Ufac), Anderson Mesquita, geographer and climatology specialist, talked to the report of ContilNet On the possible effects that will be felt in the state of Acre.
The researcher points out that there are processes involved in La Ninã that can affect the state of Acre, the first being the cooling of the southern Pacific, which bathes the Peruvian coast.
“The sea current called Humboldt usually brings colder waters that reach the Peruvian coast. There are a number of complex physical processes of energy transfer, from water that goes to the atmosphere and this ends up reverberating in other locations here in Brazil, especially in the North, Northeast and South regions, ”said the professor.
The expert also explains that the tendency is that there are more rainfall in the North and Northeast region and that in the south of the country the effect is the opposite, reducing the rainfall regime.
“Even with this weaker La Niña this year is still a La Niña event. What the literature has indicated is that there is probability that we have more rainfall here to the North and Northeast, and less to the southern region of Brazil, but this is just a probability, ”he emphasized.
The teacher explains that the precipitation level can increase/Photo: ceded
Mesquita also points out that, for the state of Acre, even with a weaker la Nina, which could indicate a level of precipitation not elevation, it is necessary to keep alert to extreme events, such as large volumes of rain in a short space of time.
“Even if we do not have a significant increase in the volume of precipitation, we do not escape the so -called extreme events. These are very dangerous. We may have, for example, a very high volume of rain in a short period of time and this may end up drastically affecting the city, as happened in the flood of the St. Francis Igarapé years ago, ”he exemplified.
The possible increase in rainfall can affect local agriculture, making the process of harvesting and flowing production difficult. Agronomist Rafael Pereira has given some examples of how the two situations can be impacted.
“Usually you expect a quantity in a certain period, so when it changes the large commodities can suffer a lot from climate saturation, which directly affects production,” he said of the possibility of rainfall.
The agronomist also explains that certain plants, such as vegetables, can be more impacted, depending on how they are produced, being susceptible to more threats that hinder their development.
With increased precipitation the agronomist warns of possible problems faced/Photo: assigned
“Now, there are some plants such as vegetables, which depending on the way they were planted and everything, can suffer more pest attack, fungi, because it is very humid, can die for drowning for example,” he said.
The professional also points out that the period from March to May is harvesting for commodities such as corn and soy, which can make it difficult to harvest. “Some people harvest in February, but the vast majority are from mid -March until May, because of the drought, which is the change of Amazonian winter to the Amazon summer, which is when we call drought,” he said.
Another factor pointed out by Pereira, on possible effects of La Niña for state plantations is the flow of productions, which can be impacted.
“Another factor that may disturb, with the possible increase in precipitation due to La Niña is in flow. Our state is one of the states with more poorly paved roads, that is, when draining this food production many spaces are inaccessible or very difficult to access, affecting the transport of these products, so it is lost part of the production, ”he said saying that rains can also disrupt the harvesting process, still on rural properties.
