The water catchment area of the Trotuş river lies on about 4340 square kilometers of which 66% are in the mountain area of the Central Group of the Eastern Carpathians (Moldo-Transilvans). In recent years the manifestation of natural hazards aggressiveness multiplied. In 2005 (12-13 July) and 2010 (26-27 June) Trotuş Valley was affected by strong floods that have produced great material damage. Hydro-technical works carried out after the 2005 summer hazard were swept away by the 2010 hazard, when were affected about 3,000 households in the upper course of the Trotus, most of the damage being recorded on the Agăş Creek Valley to the confluence with the Trotuş, the administrative territory of the commune Agăș, where about 2000 household suffered. The late melting snow on the Ciuc and Tarcău Mountains peaks mixed with summer rains determined total isolation of the Cotumba, Sulța, Goioasa and Coșnea hamlets. Provisory bridges realized on the main roads on the side valleys, where are many hamlets, renewed in 2009 summer, were quickly clogged and then swept away by the rough waters of the Trotus and its tributaries. In the upper basin of the Trotus. Over the past 20 years have been recorded up phenomena of paroxysm of the climatic and hydrologic hazards among which the creeks Grohotiş and Sulţa flooded the villages Goioasa and Sulţa. On the 12-13 July, 2005 the Creek Agăş flooded a part of the Agăş village, about 2 kilometers, in line, of households. Drăcoiu creek broke the wall of channeled flood reached exceptional values, the maximum flow at Vrânceni hydrometric station being of 2800 cubic meters/s (probability of overflow 0,5%) and the flood volume here was the biggest of all the existing measurements.
Apostol L. (2004) Clima Subcarpaților Moldovei. Editura Universităţii din Suceava
Dumitriu D. (2008) ”Modele de evaluare a bugetului de aluviuni în relaţie cu impactul antropic dintr-un bazin hidrografic. Studiu de caz: bazinul râului Trotuş” - contract CNCSIS- UAIC Iaşi
Dumitriu D., Niculiţă M., Condorache D. (2011) ”Downstream Variation in the Pebble Morphometry of the Trotuş River, Eastern Carpathians (Romania)” in Forum geografic. Studii şi cercetări de geografie şi protecţia mediului - volume 10 (www.forumgeografic.ro)
Grozavu A., Kocsis L. (2006) ”Effets géomorphologiques de la crue de 12/13 juillet 2005 du Bassin versant du ruisseau Albele (Département de Bacău)” în Analele ştiinţifice ale Universităţii ”Al.I.Cuza” Iaşi. Tom LII, s.II-c, Geografie 2006: 60-66, Iaşi
Văcăraşu Iulia (1984) ”Aşezările de altitudine din zona montană a Trotuşului şi rolul lor în modificarea peisajului geografic înconjurător” în Buletinul Societăţii de Ştiinţe Geografice din R.S.R., vol.VII: 88-93. Bucureşti.
* * * Date pluviometrice masurate in intervalul 25 - 27.06.2010 de statiile hidrometrice din cadrul Directiei de Ape Siret - S.G.A. Bacau;
* * * www.sat24.com/history.aspx
* * * http://weather.uwyo.edu/upperair/europe.html
* * * www.wetter3.de/Archiv * * * www.wetter3.de