Installation of three hydrological stations of Arantec in the international river basin district of Duero

Installation of three hydrological stations of Arantec in the international river basin district of Duero

Supply, installation and start-up of compact integrated hydrological stations in the stations of Barbadillo del Pez (Burgos), Otero de Guardo (Palencia) and Tardesillas (Soria)

The Duero International Hydrographic Demarcation is the most extensive in the Iberian Peninsula with 98,073 km2, comprises the territory of the river basin of the Duero river as well as the transition waters of the estuary of Porto and associated Atlantic coasts. It is a shared territory between Portugal (20% of the total area) and Spain (80%). The Spanish part of the Duero demarcation covers 78,859 km2. The Spanish part of the Douro demarcation is bordered by the north – west with the Miño – Sil demarcation, by the north by the Cantabrian, by the north – east and by the Ebro, and by the south by the Tagus River; Towards the west the basin continues with Portugal. In Spain the basin extends to the autonomous communities of Castile and Leon, Galicia, Cantabria, Castilla – La Mancha, Extremadura, La Rioja, Madrid and Asturias. In the vast territory described, a drainage network is located that reaches a length of about 83,200 km, of which 13,491 km have been identified as bodies of water. Most of the rivers of the basin have their origin in the mountain ranges that border it and go down to the main axis of the Duero, which along 744 km (in Spain) divides the basin. It differentiates a right or northern margin with two large tributary suburbs, the Pisuerga that includes the Carrión and the Arlanza with the Arlanzón, and the one of the Esla that unfolds in fan to include rivers like Tera, Órbigo, Porma and Cea. The left or southern margin includes smaller rivers that descend from the Central System to the Duero, such as Riaza, Duratón, Cega, Adaja with Eresma, and other smaller ones (Zapardiel, Trabancos, Guareña …). Finally, to the international section, the Tormes, Huebra and Águeda systems directly deliver their waters. The Confederación Hidrográfica del Duero has among its powers the control of the quantity and quality of both surface waters (rivers, streams, lakes and reservoirs) and underground. The Integrated Network SAIH-ROEA is responsible for the continuous and automatic control of the quantity of surface water, which is constituted by 158 flow stations in channels, 174 rain gauges, 38 control points in reservoirs and 48 control points in channels . The 158 stations of flow rates are distributed in 58 river basins, with 16 stations along the Douro River, 9 Pisuerga River, 8 Tormes River, 7 Esla River River and 6 Carrión River Rivers, Eresma, Luna-Órbigo and Arlanzón.
The flow data provided by the Integrated Network S.A.I.H.-R.O.E.A. Serve two main objectives: – Recording of flows through the basin channels to improve the management of water resources, having a special relevance in hydrological planning. – Report in situations of risk of floods and floods to the competent authorities so that they take the decisions they deem appropriate to minimize the risk and, if necessary, the restoration to the normal situation. Starting from the description of the Duero basin and Its hydrological and territorial characteristics, the Hydrographic Demarcation has decided to rely on ARANTEC to extend its integrated network of riverbeds control in 3 significant points of the rivers Pedroso, Besande and Tera.
The first control point, called Barbadillo del Pez because of its location in this town in the province of Burgos, is located on the Pedroso river, affluent on the right bank of the Arlanza River, which as previously mentioned belongs to the Pisuerga basin , Affluent in its turn by the right margin of the Duero. The second control point, called Otero de Guardo, is located in the town of Velilla of the river Carrión on the bridge over the Besandino river, affluent on the right bank of the river Carrión, also belonging to the Pisuerga river basin.
The third control point, called Tardesillas, is located in the town of Tardesillas on the bridge over the Tera River, affluent on the right bank of the Duero River.
In all locations a radar type river level sensor up to 15 m high has been installed, as well as sensors of ambient temperature and relative humidity, fed by photovoltaic plates and communications through GPRS with the Basin Control Center of The Duero Hydrographic Demarcation located in Valladolid. Arantec, has installed these control points in just a few days and has integrated them, even with its own data and alarm management platform, within the interface that owns the Duero Hydrographic Demarcation managed by software called WISKI. This confirms the great speed and flexibility that the teams possess, being able to be integrated within administrations of great importance as the one of the Duero Hydrographic Confederation.

Arantec’s new meteorological station at the service of the scientific community

Arantec’s new meteorological station at the service of the scientific community

Natural Monuments of the Pyrenean Glaciers is a figure of environmental protection of the Government of Aragon that counts on varied locations in the regions of Alto Gállego, Sobrarbe and La Ribagorza, all of them in the province of Huesca (Aragon, Spain). It has an area of ​​3,190.4 ha and another 12,897 ha of peripheral protection zone. Its altitude ranges between 2,700 and 3,404 m.

These Monuments were declared as such on March 21, 1990, by the law 2/1990, declaration of Natural Monuments of the Pyrenean glaciers, being extended on July 23, 2002, by Decree 271/2002 of the Government of Aragon , Which modifies and extends the protected area of ​​the Natural Monuments of the Pyrenean Glaciers, establishes the peripheral areas of protection and approves its Protection Plan. Finally, the last enlargement took place on September 4, 2007, through Decree 216/2007 of the Government of Aragon, which extends the protected area of ​​the Natural Monuments of the Pyrenean Glaciers and modifies its Protection Plan. Significant parts of these Natural Monuments belong to two Natural Protected Spaces of the Aragonese high mountain: Posets-Maladeta Natural Park and Ordesa y Monte Perdido National Park.

They include the following massifs (specifying the affected municipalities):

  • Balaitús (Sallent de Gállego).
  • Hell (Panticosa and Sallent de Gállego).
  • Viñamala (Torla-Ordesa).
  • Monte Perdido (Bielsa and Fanlo).
  • The Munia (Bielsa).
  • Posets (San Juan de Plan, Sahúny Benasque).
  • Perdiguero (Benasque).
  • Maladeta (Benasque and Montanuy).

Here is the Aneto peak. In all of them, besides other glacial masses, other manifestations of glacier geomorphology can be found, such as moraines, ibons or valleys in U. The Natural Monuments of the Pyrenean Glaciers are the most southern ice masses in Europe. It is the latest evidence of glaciers that, together with other modeling agents, gave rise to the main forms of the relief of the Pyrenees. The singularity and fragility of these small but beautiful redoubts of the cold, have made them possess a high scientific, cultural and landscape interest.

At present, the Pyrenean glaciarismo is limited to certain testimonial spaces above the 2,700 msnm. The reduction of glacial surfaces is a constant since the end of the PEH (Little Ice Age), which meant a period of cooling between the fourteenth and nineteenth centuries, with the consequent glacier reactivation in the Pyrenees and in many other mountains of the earth. This reduction in glacial surfaces has accelerated since the 1980s.

The climate is extreme in these places of high mountain, which causes scarcity of plants and animals, due to their difficult adaptation. Little more than ptarmigan and partridges can be seen in the glacier environment. The species reigns in the ibons is a rare species of endemic amphibian, the Pyrenean triton (Euproetys asper).

In order to know the climatic characteristics of these unique environments, it is convenient to install monitoring systems in them. This is the case of the meteorological station that owns the Patronage of the Natural Monuments of the Pyrenean Glaciers near the top of the Aneto peak. Due to its location, with very complicated conditions of access and maintenance, Arantec has opted for the technological update of the station, since this company has personnel specialized in installations of this type, as well as in High mountain means.

The data provided by this meteorological station will contribute to a better understanding of the environmental and climatological conditions of the Aneto Glacier and its evolution, in the current context of an important reduction of the glacial masses. The work of Arantec guarantees the proper maintenance of this high mountain station and the capture of the meteorological data.

 

Mario Losáñez Tejedor

Civil Engineer (Roads, Canals and Ports)

 

Arantec expands its international presence with a Meteorological Station in Malta

Arantec expands its international presence with a Meteorological Station in Malta

Arantec Enginnering, through its partner company AIS Technology Ltd. reinforces its international presence by supplying and installing a Weather Station in Malta.

 

The Energy and Water Agency (https://energywateragency.gov.mt) through the European Union and the EEA and Norway Grants program, entrusts to Ais Technology and Arantec the equipment of a station for the measurement of hydroclimatic parameters in the Water Awareness Conservation Center in Nigret, Rabat (Malta) with the aim of explaining to students and students the importance of climatic factors for the management of water resources and their conservation.

 

Its highlights the commitment of Arantec to raise awareness and educate the population, from educational centers, respect for the environment and the importance of water for life and biodiversity on the planet.

This initiative is manifested through the disclosure and knowledge of both the following parameters and installed equipment:

  • Rain through a surface rainwater collecting water of 500 cm2
  • Temperature from -10 to 50ºC and Relative Humidity up to 100%, by means of a joint sensor.
  • Solar radiation from 300nm to 80μm, using a radiometer that measures both the incident radiation of the sun and that reflected in the ground.
  • Wind through a speed sensor up to 50 m / s and 360 ° direction.
  • Barometric pressure from sea level up to 300 m altitude, using a barometer located in the box of the datalogger.
  • Evaporation with an evaporator of 1,200 mm of diameter and 250 mm of height with its corresponding probe of level and grate of protection of birds.

 

All these sensors are connected to the datalogger that collects the meteorological data and sends them by means of GPRS to the Cloud servers, where the Smarty Planet platform is hosted, thus enabling real time data consultation by the entire educational community.

Finally, we show a series of images of the data that are reflected in the platform Smarty Planet in real time.


Arantec at the European Geosciences Union – EGU 2017

Arantec at the European Geosciences Union – EGU 2017

The University of Lleida (Josep Carles Balach, Josep Lluis Ruiz-Bellet, David Garcia-Rodríguez, Rafael Rodríguez-Ochoa and Xavier Castelltort), the University of Barcelona (Glòria Furdada and Mariano Barriendos), the Polytechnic University of Catalonia (David Pino) , The Ministry of Science, the Fluvial Dynamics Research Group (Jordi Tuset) and Arantec (Eisharc Jaquet), participated in the European Geosciences Union (EGU) General Assembly 2017 on 23-27 April in Vienna by presenting a poster on The case of the avenues of 2015 and 2016 occurred in Agramunt.

 

In this conference (EGU) where scientists and businessmen from all over the world gather, issues related to climate change, the Environment, Hydrology and Natural Risks are discussed.

 

Within these areas, Arantec analyzes the importance of calibration using river level and rainfall sensors (Smarty River), hydrological models for the Sió river basin, a tributary of the river Segre in the River Basin Of the Ebro.

 

egu1

 

The Sió river basin, divided into 12 sub-basins, was modeled using the HEC-RAS v4.2 program with soil moisture conditions based on the Type 2 Curve Number and the rainfall recorded on the Gaver de Arantec rain sensor . Subsequently, the channel levels were calibrated with the “Smarty” level sensors installed in Castellnou d’Ossó and Tarroja de Segarra.

 

The results modeled with those actually measured in Tarroja de Segarra, coincided in peak flows, but had a deviation from the time of the tip (1h 40 ‘before the measured) and volume (84% less than the measured model) , As can be seen in the following image.

 

egu2

Hydrograms of measured values ​​(black line) and modeled (blue line) in Tarroja de Segarra

 

Regarding the results in Castellnou d’Ossó, the model overestimated the peak flows and the volume of the avenue, so it can be intuited that the model did not take into account the infiltration of the terrain, as indicated in the following graph.

 

egu3

Hydrograms of measured values ​​(black line) and modeled (blue line) in Castellnou d’Ossó

 

If we assume that there is an infiltration of approximately 0.18 mm / s in this case, the peak flows in Castellnou d’Ossó will be similar between the measured and the modeled, existing only the discrepancy in the time of the tip and the volume as well as Happened in Tarroja de Segarra, as can be seen in the following graph.

 

egu4

Hydrograms of measured values ​​(black line) and modeled (blue line) in Castellnou d’Ossó with infiltration

 

Therefore, we only have to discuss the cause of the differences in times of peak flows and volumes of avenue, and may be due to the high existence of sediments in the river, the use of a theoretical hietogram different from the real and the existence of a large flood plain in the area.

 

egu5

 

As a conclusion, it is important to emphasize the importance of installing rain measuring equipment, levels and flow rates to calibrate the different models, as well as the presence of Arantec in the Vienna conference as a reference in this type of Early Warning Systems before avenues.

 

National Automatic Information System for Dams and Reservoirs (SANIPE)

National Automatic Information System for Dams and Reservoirs (SANIPE)

The dams have been improving in the last decades their form of exploitation and their security conditions in accordance with the demands demanded by society; Complementarily, that has meant modernizing them and adapting them to the new technologies.

 

As a result of this progress, there has been a clash with reality, where technologies are advancing faster than the resources available for investment in infrastructure. In some cases, at a general and large-scale level, advances in sectors such as motorways, high-speed railways and even large dams if they have occurred, but leaving on the way to those who did not have the resources or investment capacity.

 

Due to this aspect, I propose in this article the suitability of establishing a National Automatic Information System for Dams and Reservoirs (SANIPE), which encompasses not only those infrastructures that are already modernized, but also the remaining ones in the worst conditions defined in The so-called Inventory of Dams and Reservoirs (IPE).

 

And you will ask, How do we make this system with the smallest investment possible to achieve the greatest advances necessary?

 

In my humble opinion, I think it could be achieved by setting minimum targets to be met and desirable targets to achieve.

 

Let us begin with the maximum that we could have installed in all the dams of the national territory and, as is the case, already have in some Confederations or Hydroelectric Companies and that are, and may forget some, the following:

 

  • Characteristics or technical file of the dam
  • Reservoir levels
  • Vigilance and auscultation
  • Maintenance
  • Emergency plan
  • Video surveillance
  • Technical File and Reports

 

All these aspects would be covered by the so-called SANIPE and would be nourished by the different agencies or administrations related to the reservoirs such as Confederations, Water Agencies, Private Companies, Irrigation Communities, etc. Through the existing IPE (Dams and Reservoirs Inventory), SAIH (Automatic Hydrological Information System), SCADAs of the dams, SAICA (Automatic System for Water Quality Information), sirens, cameras, etc.

 

And what would be the minimum to have an automatic information system?

 

Since the elaboration of the Technical Regulations for the Safety of Dams and Reservoirs (RTSPE) of 1994 and Royal Decree 9/2008, progress has been made in this regard with the updating of the mentioned IPE and the creation of the register of rafts, but it would be convenient to provide All dams of an automatic level control similar to what could be provided by the SAIH, but with a smaller amount and a greater ease of installation and maintenance.

 

This level measurement would allow us to access better control of the operation, an increase of the security of the infrastructures, the possibility of establishing systems of early warning before avenues and the subsequent connection with the Emergency Plans and endless aspects Related to this variable.

 

In addition, as a breakthrough to new technologies, it would be advisable for SA-NIPE and its information to be, as it is known today, in the cloud, thus framed within the concept of Internet of Things (IoT), the future of the world Globalized.

 

And what equipment or systems could meet these needs?

 

As an answer to this question nothing better than to take as examples the systems installed in the dams of Santa Lucia (concrete) and Peraleda de San Román (loose materials) by the Junta de Extremadura.

 

The equipment consists of a radar level sensor located on the vertical face of the Santa Lucía dam and a pressure probe at the bottom of the Peraleda reservoir connected to a small compact station that does not need power (solar panels) Or civil work (simple anchorage to vertical facing / wall or pole fastening, since they only weigh 5-8 kg). These computers connect to the server via 3G / Satellite and send the data to the Cloud server that will allow us to establish alert systems, graphs, histories, reports, etc. Its installation is carried out in 1-2 days and its maintenance is carried out in a remodeled fashion with a single annual preventive visit by specialized personnel. A photo of a facility is included at the top of this page.

 

These compact stations are also modulable and can be added, depending on the resources and needs, water quality sensors in the reservoir, sensors to control the opening and closing of drainage organs, flowmeters, video surveillance cameras, connection to PEP sirens , Meteorological stations, etc., and all connected to the Internet through a Cloud server, it is only necessary to update the same so that all the dams of the national territory are fully modernized and to the point of 21st century systems.

 

As a conclusion and final summary of the article, I would like to appeal to the responsible organisms for the creation of a National Automatic System of Information of Dams and Reservoirs that encompasses the already existing advanced systems in relation to the great dams and incorporate the rezaga – two, automating the levels by means of expandable compact stations that are autonomous, of easy installation and maintenance, and with a low investment cost. The new technologies through Internet (IoT) represent a unique opportunity that we must know to take advantage of to improve the security of the prey, without requiring big investments.

 

M. Losáñez
ICCP. Vocal Contributor from SPANCOLD
Civil Engineer
Business Development Director

Arantec at the SEPREM Journeys (Spanish Society of Dams and Reservoirs)

Arantec at the SEPREM Journeys (Spanish Society of Dams and Reservoirs)

Last November, the Spanish Society of Dams and Reservoirs (SEPREM) organized the “The role of Automatic Information Systems (SAI) in the management of water resources in the School of Engineers of Roads, Channels and Ports. Flood emergency situations “.

The seminars covered, in the first part, the role of SAI in water resources management as well as in the area of ​​flood emergencies and early warnings to the population.

In the second part, the need to integrate these measurement systems with meteorological information and prediction agencies (AEMET) and forecasting and management of possible damages (Civil Protection) was discussed.

The seminars were coordinated by José Mª Gutiérrez from Atema Ingeniería, who gave speeches to the representatives of the Hydrographic Confederations, the General Directorate of Water, AEMET, Civil Protection and the National Council for the Protection of Critical Infrastructures (CNPIC) .

In the first intervention, Francisco Barbancho López, Deputy Head of Exploitation of the Guadiana Hydrographic Confederation, highlighted the lack of budget for the maintenance of the Guadiana SAI that has gone from € 1.5 million per year to barely 0.5 € million to control 221 points of which, 45 are reservoirs, 86 aforos in river, 70 meteorological stations and 10 piezometers. Barbancho López, also expressed his dissatisfaction with payments made between administrations, such as the high cost of the rate of radio use paid annually by the Confederation to the Ministry of Industry.

Juan Carlos Caballero Aguilera, head of the SAIH Service of the Segura Hydrographic Confederation, reflected the same situation as his Guadiana counterpart in terms of a lack of maintenance budget.

The rest of the interventions followed the same dynamic of lack of budget except some cases that do have funds for the maintenance of their Automatic Information Systems.

Carlos Ruiz del Portal, Chief of the Office of Hydrological Planning of the Miño-Sil Hydrographic Confederation, presented the characteristics of his network consisting of 112 SAIH points, 13 SAICA points and 23 piezometers.

Urban Sanz and Joaquín Niclós, responsible for the SAI of the Duero and Júcar Hydrographic Confederations also explained the composition of their systems.

The representatives of the rest of the different Hydrographic Confederations also made their interventions.

  • Ebro: Ángel Núñez, head of the SAIH
  • Guadalquivir: Francisco Javier Aycart Luengo, head of the SAIH
  • Agencia Catalana del Agua: Juan José Villegas Ruiz, head of the control network unit
  • Demarcación Hidrográfica de las Cuencas Mediterráneas Andaluzas.
  • Tajo: José Antonio Hinojal, head of the SAIH

In which the Ebro was noted for its wide network of control points and the ability to have an annual budget for maintenance, such as the Tagus that has recently awarded a maintenance contract that guarantees you have active service until 2019.

Civil Protection emphasized providing the national territory with both a general network such as SAIH and AEMET, as well as a more localized network with radars and control points for more economical and more agile avenues of both installation and maintenance as the Installed by ARANTEC in the Aran Valley and in the municipality of Agramunt.

Next, Fernando Pastor Argüello, Head of the Hydrological Information Area of ​​the Directorate General for Water, responded to previous interventions and stressed the need to have automatic information systems and to unify Europe with alert systems from the point of view of View both of the integration in Meteoalarm (which currently have developed in a greater degree of progress Sweden, Austria and France) and of communication protocols (CAP-Common Alert Protocol).

One of the last interventions was María Roser Botey, chief of climatology area of ​​the AEMET, who indicated the need to exchange data among the 800 Meteorological Stations that owns its organism, with all the network of rain gauges that the Confederations possess with the objective of Have more accurate weather forecasting models and a greater variety of temporary forecast horizons.

Gregorio Pascual, head of the Natural Hazards of Civil Protection area, commented on the entry into force of the new National Civil Protection System Law (17/2015 of 9 July), where Article 11 is highlighted, which provides for a fund for prevention And Article 12 that establishes a National Alert Network similar to the European Flood Awareness System (EFAS).

Within the framework of this Law, Civil Protection emphasized giving the national territory both a general network such as SAIH and AEMET, as well as a more localized network with radars and control points of avenues more economical and more agile both Of installation and of maintenance like those installed by ARANTEC in the Valley of Aran and in the municipality of Agramunt.

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