scholarly journals Improving MUSLE performance for sediment yield prediction at micro-watershed level using seasonal classified data

2018 ◽  
Vol 13 (3) ◽  
pp. 505-512
Author(s):  
Hamzeh Noor ◽  
Mohammad Rostami Khalaj
Keyword(s):  
Sediment Yield ◽  
Traditional Approach ◽  
Estimation Error ◽  
Superior Performance ◽  
North East ◽  
Erosion Processes ◽  
The North ◽  
East Of Iran ◽  
Different Seasons

Abstract Separating erosion data and assessing season-based models are of great importance considering the variation in soil erosion processes in different seasons, especially in semi-arid regions. However, evaluation of an erosion model using seasonal classification of data and at a micro-watershed level have rarely been considered. Therefore, the present study was conducted to evaluate the modified universal soil loss equation (MUSLE): 1) with the seasonal classification of data and 2) with the traditional approach (no classification of data), in the Sanganeh research micro-watershed. This watershed has an area of 1.2 ha and is located in the north east of Iran. The results showed that the original MUSLE overestimated the sediment yield in the study watershed. Also, after calibration of MUSLE, the seasonal classification of data (with a relative estimation error (RE) of 34%) showed its superior performance compared with the traditional calibration approach (with a RE of 62%). In this regard, the obtained REs of 33, 40, and 31% respectively for spring, autumn, and winter are within or close to the acceptable range.

scholarly journals Observations of surface mass balance on Pine Island Glacier, West Antarctica, and the effect of strain history in fast-flowing sections

2019 ◽  
Vol 65 (252) ◽  
pp. 595-604 ◽  
Author(s):  
HANNES KONRAD ◽  
ANNA E. HOGG ◽  
ROBERT MULVANEY ◽  
ROBERT ARTHERN ◽  
REBECCA J. TUCKWELL ◽  
...  
Keyword(s):  
Mass Balance ◽  
Strain History ◽  
Surface Mass Balance ◽  
West Antarctica ◽  
Surface Mass ◽  
North East ◽  
Erosion Processes ◽  
The North ◽  
Significant Correction ◽  
Snow Deposition

ABSTRACTSurface mass balance (SMB) is the net input of mass on a glacier's upper surface, composed of snow deposition, melt and erosion processes, and is a major contributor to the overall mass balance. Pine Island Glacier (PIG) in West Antarctica has been dynamically imbalanced since the early 1990s, indicating that discharge of solid ice into the oceans exceeds snow deposition. However, observations of the SMB pattern on the fast flowing regions are scarce, and are potentially affected by the firn's strain history. Here, we present new observations from radar-derived stratigraphy and a relatively dense network of firn cores, collected along a ~900 km traverse of PIG. Between 1986 and 2014, the SMB along the traverse was 0.505 m w.e. a−1 on average with a gradient of higher snow deposition in the South-West compared with the North-East of the catchment. We show that along ~80% of the traverse the strain history amounts to a misestimation of SMB below the nominal uncertainty, but can exceed it by a factor 5 in places, making it a significant correction to the SMB estimate locally. We find that the strain correction changes the basin-wide SMB by ~0.7 Gt a−1 and thus forms a negligible (1%) correction to the glacier's total SMB.

scholarly journals Evaluating the rate of contamination of raw milk with pathogenic biotypes of Yersinia enterocolitica in the North-East of Iran

2019 ◽  
Author(s):  
Fahimeh Movafagh ◽  
Tayebeh Zeinali ◽  
Abdollah Jamshidi
Keyword(s):  
Public Health ◽  
Yersinia Enterocolitica ◽  
Dairy Products ◽  
Health Hazard ◽  
Raw Milk ◽  
Contamination Rate ◽  
Milk Samples ◽  
North East ◽  
The North ◽  
East Of Iran

Abstract Objective: This study aimed to evaluate the contamination rate of raw milk to Y. enterocolitica and biotyping of isolated organisms. Results: The results showed 33% of raw milk samples were contaminated with Yersinia enterocolitica. 1A biotype was the predominant one (26%) but two pathogenic biotypes including 1B (6%) and 5 (1%) were also detected. Isolation of potentially pathogenic Y. enterocolitica from raw milk and consequently its presence in dairy products which are made from raw milk is a public health hazard.

Evaluation of an Earth-to-Air Heat Exchanger for the North-East of Iran with Semi-Arid Climate

2011 ◽  
Vol 8 (4) ◽  
pp. 499-510 ◽  
Author(s):  
Mohammad Hossein Abbaspour-Fard ◽  
Adel Gholami ◽  
Mehdi Khojastehpour
Keyword(s):  
Heat Exchanger ◽  
Arid Climate ◽  
North East ◽  
The North ◽  
East Of Iran ◽  
Semi Arid

Pattern of factor VIII inhibitors in patients with hemophilia A in the north east of Iran

Hematology ◽  
2006 ◽  
Vol 11 (3) ◽  
pp. 215-217 ◽  
Author(s):  
A. R. Modaresi ◽  
H. Mansouri Torghabeh ◽  
A. A. Pourfathollah ◽  
M. Mahmoodian Shooshtari ◽  
Z. Rezaie Yazdi
Keyword(s):  
Factor Viii ◽  
Hemophilia A ◽  
North East ◽  
The North ◽  
East Of Iran

scholarly journals Burnout and its Influencing Factors among Primary Health Care Providers in the North East of Iran

PLoS ONE ◽  
2016 ◽  
Vol 11 (12) ◽  
pp. e0167648 ◽  
Author(s):  
Mohammad Amiri ◽  
Ahmad Khosravi ◽  
Ahmad Reza Eghtesadi ◽  
Zakieh Sadeghi ◽  
Ghasem Abedi ◽  
...  
Keyword(s):  
Health Care ◽  
Primary Health Care ◽  
Influencing Factors ◽  
Health Care Providers ◽  
Care Providers ◽  
North East ◽  
The North ◽  
Primary Health ◽  
Primary Health Care Providers ◽  
East Of Iran

The taxonomy of some little-known Sipuncula from the north-east Atlantic region including new records

1986 ◽  
Vol 66 (2) ◽  
pp. 335-341 ◽  
Author(s):  
P. E. Gibbs
Keyword(s):  
Deep Sea ◽  
New Records ◽  
East Atlantic ◽  
Atlantic Region ◽  
North East ◽  
The North ◽  
The Status ◽  
Species Being ◽  
Deep Sea Fauna

INTRODUCTIONEarly investigations of the deep-sea fauna of the north-east Atlantic region resulted in many new Sipuncula species being described, notably by such workers as Koren & Danielssen (1877), Théel (1905), Sluiter (1900, 1912) and Southern (1913). Many of these species were erected from single, or few, specimens and some are still known only from the original records.This paper examines the status of certain species, mostly the seemingly-rare golfingiids described by Sluiter and Southern (see Table 1), the types of which were deposited in the collections of the Irish National Museum, Dublin (INMD) and the Musée Océanographique, Monaco-Ville (MOMV), and presents some new observations and records. The names of taxa follow the classification of Cutler & Gibbs (1985); Nephasoma Pergament and Apionsoma Sluiter, formerly considered as subgenera of Golfingia Lankester, are now elevated to generic rank.

scholarly journals To name but a few: descriptions of five new species of Terebellides (Annelida, Trichobranchidae) from the North East Atlantic

ZooKeys ◽  
2020 ◽  
Vol 992 ◽  
pp. 1-58
Author(s):  
Julio Parapar ◽  
María Capa ◽  
Arne Nygren ◽  
Juan Moreira
Keyword(s):  
Morphological Characters ◽  
Nominal Species ◽  
East Atlantic ◽  
Type Specimens ◽  
North East ◽  
The North ◽  
Putative Species ◽  
Different Types ◽  
Thoracic And Abdominal

The number of described species of the genus Terebellides Sars, 1835 (Annelida, Trichobranchidae) has greatly increased in the last years, particularly in the North East Atlantic. In this context, this paper deals with several putative species recently delineated by molecular means within a well delimited clade of Terebellides. Species are characterised here by a combination of morphological characters, and a complementary nucleotide diagnostic approach. Three species were identified as the nominal species T. stroemii Sars, 1835, T. bigeniculatus Parapar, Moreira & Helgason, 2011 and T. europaeaLavesque et al., 2019. Five species are described as new: T. bakkenisp. nov., T. kongsrudisp. nov., T. norvegicasp. nov., T. ronningaesp. nov. and T. scoticasp. nov. The distinctive morphological characters refer to the branchial shape, absence or presence of papillae on lamellae of anterior margin of branchial dorsal lobes, absence or presence of ciliated papillae dorsal to thoracic notopodia, geniculate chaetae in one or two chaetigers, and the morphology of thoracic and abdominal uncini teeth. Furthermore, the description of T. bigeniculatus is revised and complemented after examination of type specimens. An updated identification key to all species of the genus in NE Atlantic and a proposal of a classification of different types of abdominal uncini to be used in taxonomy are also included.

Sign in / Sign up

Export Citation Format

Share Document