Abundant rains cause overflows in the major rivers of Spain.

Juan G. R. Abundant rains cause overflows in the major rivers of Spain.                                                                                                            Water and Irrigation. Vol: 4, No. 1:7-8, April, 2013, Spain.

Heavy rains in March 2013 and the high rains in the first decade of April in Spain, have continued to increase the water level in the river beds and the danger of flooding, which has caused the overflow of the country’s major rivers such as the: Ebro, Duero, Guadiana, Guadalquivir, Tajo and many tributaries in different watersheds. In the fight against floods it is essential to increase the capacity of networks of internal and external drainage in many cities and agricultural areas in order to reduce economic losses and human lives that cause these unfortunate events.

Heavy rains in March 2013 and the high rains in the first decade of April in Spain have continued to increase the water level in the river beds and the danger of flooding, which has caused the overflow the country’s major rivers such as the: Ebro, Duero, Guadiana, Guadalquivir, Tajo and many tributaries in different watersheds.

The month of March has been extremely wet in most of Spain, the average monthly rainfall nationwide reached the value of 157 mm., Which exceeds three times the normal value of the month is 46 mm, with reference to the period : 1971-2000. The wettest March in Spain as a whole throughout the series started in 1947, more than 20 mm in March 1947, which had been so far the highest average precipitation. According http://www.aemet.es/es/noticias/2013/04/climatologicomarzo2013

The reservoir capacity in Spain is 55,327 hm3 and on 09/04/2013 the reservoir water was 83.82% — 46 376 hm3. The water stored in the basins of the rivers: Guadiana, Guadalquivir, Duero, Ebro and Tajo was: 97%, 95%, 82%, 78% and 77% respectively. In small basins of the northern zone reservoir water ranged from 92 to 100%, the Mediterranean basin were the least affected by rain with water stored from 54 to 85%.    According     www.embalses.net   

The Community of Castilla and Leon is on alert for the important rising of rivers in the Duero Basin, which have begun to overflow and flood rural areas, farms and even villages, mainly in the provinces of Burgos, Soria and Valladolid. The reservoirs of the Duero river system are the limit and some others already overflowing so are pouring water in a controlled manner to prevent the saturation. Heavy rains have increased Pisuerga river flow passing through Valladolid to the 1,011 cubic meters per second, so it has surpassed the 935 m3 / s as alarm level set by the Hydrographic Confederation of the Duero River. The Ebro river level as it passes through Zaragoza reached 4.03 meters tall and has a wealth of 1362.55 meters cubic per second, according to the Automatic Hydrological Information System (AHIS) of the Ebro Hydrographic Confederation (CHE) . Zaragoza station level is in red and the forecast for the next few hours is that the rate can rise up to 1515 meters cubic per second. At 10 hours, according to the Government of Navarra, the level which reached Sunday was at 6.19 meters at a flow  of 1457.80 meters cubic per second. There have been roadblocks, landslides and flooded cropland According http://www.20minutos.es/noticia/1773411/0/lluvias-inundaciones/camping-pisuerga/ciudad-real/

 

During the day on Tuesday, complications due to the overflow of the Guadiana river were increasing, by the constant rain and the discharge of water from various dams already at 100% capacity, a total of 12 people were rescued on different points risk. Neighbors Barbaño a town of about 600 people in Vegas Bajas del Guadiana, have been driven from their homes by the rising of the river. Other towns in the province of Badajoz are also on alert as in the town of Almendralejo and in some neighborhoods of the city of Merida, where water of Guadiana has entered in some streets. Although the Guadalquivir river flow is already below 1500 cubic meters per second, the alert is activated overflow basin of this river and its tributaries. The provinces of Jaén, Córdoba and Seville are pending on the weather situation for fear of flooding that may occur in the month of April. In communities of Andalusia, Castilla- Mancha and Extremadura many water reservoirs discharge water efficiently, after having reached capacity and there were also some small watershed dams located in the north of the country.

The district of Santarém, in the center of Portugal, has been the most affected due to the overflow of the Tajo river, which inundated 17 highways and some agricultural areas. The most serious case was that of the village Reguengo do Alviela, where people are isolated to remain under water communication routes to the town and will have to wait to lower levels of rainfall. The Duero River has also caused flooding on their way through Portugal, affecting malls.

Excessive rains in Spain during the month of March and the first ten days of April have caused damage to: structures, homes, property, businesses in some urban areas, means of communications, landslides, mudslides, flooding of agricultural areas and livestock farms. It is essential to increase the capacity of networks of internal and external drainage in many cities and agricultural areas in order to reduce economic losses and human lives that cause these unfortunate events. The flooding problem becomes more critical when you take into consideration, inadequate urban planning that has allowed to build buildings, homes and businesses in low areas and in former waterway without making recommended protective works to counteract the effect of the floods, causing damage is even greater. Many roads not have an adequate hydrological study, so it is necessary to increase the number of drainage works, to protect them from the effects of floods. Proper planning of measures to be taken and a proper investment plan in the fight against flooding will enable that the material damage and human losses are reduced considerably.

 

http://www.aguayriego.com/2013/04/abundantes-lluvias-provocan-desbordamientos-en-los-principales-rios-de-espana/

Leave a Reply

avatar
  Subscribe  
Notify of