Improving nitrate load estimates in an agricultural catchment using Event Response Reconstruction.


:Low-frequency grab sampling cannot capture fine dynamics of stream solute concentrations, which results in large uncertainties in load estimates. The recent development of high-frequency sensors has enabled monitoring solute concentrations at sub-hourly time scales. This study aimed to improve nitrate (NO3) load estimates using high-resolution records (15-min time interval) from optical sensors to capture the typical concentration response to storm events. An empirical model was developed to reconstruct NO3 concentrations during storm events in a 100-km2 agricultural catchment in Germany. Two years (Jan 2002 to Dec 2002 and Oct 2005 to Sep 2006) of high-frequency measurements of NO3 concentrations, discharge and precipitation were used. An Event Response Reconstruction (ERR) model was developed using NO3 concentration descriptor variables and predictor variables calculated from discharge and precipitation records. Fourteen events were used for calibration, and 27 events from four periods of continuous records of high-frequency measurement were used for validation. During all selected storm events, NO3 concentration decreased during flow rise and increased during the recession phase of the hydrograph. Three storm descriptor variables were used to describe these dynamics: relative change in concentration between initial and minimum NO3 concentrations (rdN), time to maximum change in NO3 concentration (TdN) and time to 50% recovery of NO3 concentration (TN rec ). The ERR consisted of building linear models of discharge and precipitation to predict these three descriptors. The ERR approach greatly improved NO3 load estimates compared to linear interpolation of grab sampling data (error decreased from 10 to 1%) or flow-weighted estimation of load (error is 7%). This study demonstrated that ERR based on a few months of high-resolution data enables accurate load estimates from low-frequency NO3 data.


Environ Monit Assess


Jomaa S,Aboud I,Dupas R,Yang X,Rozemeijer J,Rode M




Has Abstract


2018-05-07 00:00:00














  • Quantifying nickel in soils and plants in an ultramafic area in Philippines.

    abstract::In this study, concentrations of nickel (Ni) were quantified in the soils and plants in the agricultural areas of Salcedo watershed in Eastern Samar Island, Philippines. The quantity of total Ni in soils (TS-Ni) was significantly high with a mean of 1,409 mg kg(-1), while the soil available Ni (SA-Ni) was low with a m...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Susaya JP,Kim KH,Asio VB,Chen ZS,Navarrete I

    更新日期:2010-08-01 00:00:00

  • Hydrochemistry and evaluation of groundwater suitability for irrigation and drinking purposes in the Markandeya River basin, Belgaum District, Karnataka State, India.

    abstract::Markandeya River basin stretches geographically from 15°56' to 16°08' N latitude and 74°37' to 74°58' E longitude, positioned in the midst of Belgaum district, in the northern part of Karnataka. Since the quantity and quality of water available for irrigation in India is variable from place to place, groundwater quali...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Ravikumar P,Somashekar RK,Angami M

    更新日期:2011-02-01 00:00:00

  • Extraction of soil solution by drainage centrifugation-effects of centrifugal force and time of centrifugation on soil moisture recovery and solute concentration in soil moisture of loess subsoils.

    abstract::The solute concentration in the subsoil beneath the root zone is an important parameter for leaching assessment. Drainage centrifugation is considered a simple and straightforward method of determining soil solution chemistry. Although several studies have been carried out to determine whether this method is robust, h...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Fraters D,Boom GJ,Boumans LJ,de Weerd H,Wolters M

    更新日期:2017-02-01 00:00:00

  • Determination and speciation of heavy metals in sediments of the Juru River, Penang, Malaysia.

    abstract::The Juru River flows through largely urbanized areas and is grossly polluted by domestic wastes and discharges from pig farms. Other than carrying highly polluting organic materials, these wastes are also contaminated with heavy metals. To ascertain the extent of heavy metal pollution in the river, total and non-resid...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Lim PE,Kiu MY

    更新日期:1995-04-01 00:00:00

  • Periodicities of the radon level in Butte, Montana.

    abstract::Hourly measurements of radon level at four houses in Butte, Montana were analyzed. Previous studies suggestes that there are diurnal cycles, spectral analysis confirms this assertion. Moreover, there are also long term trends and weekly cycles at certain locations. The periodical cycles highly suggest that indoor rado...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Chen CL,Oksza-Chocimowski GV

    更新日期:1989-08-01 00:00:00

  • Odour emission characteristics of 22 recreational rivers in Nanjing.

    abstract::The odour emission characteristics of 22 recreational rivers in Nanjing were investigated and analysed. Eight odorous compounds (ammonia (NH₃), hydrogen sulphide (H₂S), sulphur dioxide (SO₂), carbon disulphide (CS₂), nitrobenzene (C₆H₅NO₂), aniline (C₆H₅NH₂), dimethylamine (C₂H₇N), and formaldehyde (HCHO)) were measur...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Wan Y,Ruan X,Wang X,Ma Q,Lu X

    更新日期:2014-10-01 00:00:00

  • Progress toward delisting a Great Lakes Area of Concern: the role of integrated research and monitoring in the Hamilton Harbour Remedial Action Plan.

    abstract::The goal of restoring environmental health and qualities to Hamilton Harbour Great Lakes Area of Concern, an embayment at the western end of Lake Ontario, is considered to be achievable by the year 2015. Restoring Hamilton Harbour is a dynamic process that relies heavily on research and monitoring to direct remediatio...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Hall JD,O'Connor K,Ranieri J

    更新日期:2006-02-01 00:00:00

  • Bioavailability assessment of toxic metals using the technique "acid-volatile sulfide (AVS)-simultaneously extracted metals (SEM)" in marine sediments collected in Todos os Santos Bay, Brazil.

    abstract::This paper reports the bioavailability of the metals (cadmium, copper, zinc, lead, and nickel) in sediment samples collected in seven stations from the São Paulo Estuary, Todos os Santos Bay, Brazil. The bioavailability was determined by employing the technique "acid-volatile sulfide (AVS) and simultaneously extracted...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Silva JB Jr,Nascimento RA,de Oliva ST,de Oliveira OM,Ferreira SL

    更新日期:2015-10-01 00:00:00

  • Correction to: Trend estimation for complex survey designs of water chemistry indicators from Sierra Nevada Lakes.

    abstract::The original version of this article contained a misaligned equation. The following equation replaces the online printed on the 5th page of the article. ...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章,已发布勘误


    authors: Starcevich LAH,McDonald T,Chung-MacCoubrey A,Heard A,Nesmith J,Philippi T

    更新日期:2018-10-22 00:00:00

  • Airborne Alternaria and Cladosporium species and relationship with meteorological conditions in Eskisehir City, Turkey.

    abstract::Alternaria and Cladosporium, known as the most allergenic spores were first collected by means of Durham gravimetric sampler from Eskisehir atmosphere from January 1, 2000 to December 31, 2001. The daily, monthly and annual variations in spores/cm(2) of Cladosporium and Alternaria were recorded. During this period, a ...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Erkara IP,Asan A,Yilmaz V,Pehlivan S,Okten SS

    更新日期:2008-09-01 00:00:00

  • Long-term variations of aerosol optical depth and aerosol radiative forcing over Iran based on satellite and AERONET data.

    abstract::In this study, three different sensors of satellites including the Moderate Resolution Imaging Spectroradiometer (MODIS), Multi-angle Imaging SpectroRadiometer (MISR), and Total Ozone Mapping Spectrometer (TOMS) were used to study spatial and temporal variations of aerosols over ten populated cities in Iran. Also, the...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Arkian F,Nicholson SE

    更新日期:2017-12-01 00:00:00

  • Assessment of trace metal toxicity in soils of Raniganj Coalfield, India.

    abstract::Soil, rock and water samples were collected from India's oldest coalfield Raniganj to investigate trace metal contamination from mining activity. Our data reveal that trace metal concentration in soil samples lies above the average world soil composition; especially, Cr, Cu, Ni and Zn concentrations exceed the maximum...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Das SK,Chakrapani GJ

    更新日期:2011-06-01 00:00:00

  • Geostatistical uncertainty modelling for the environmental hazard assessment during single erosive rainstorm events.

    abstract::This paper presents an environmental hazard assessment to account the impacts of single rainstorm variability on river-torrential landscape identified as potentially vulnerable mainly to erosional soil degradation processes. An algorithm for the characterisation of this impact, called Erosive Hazard Index (EHI), is de...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Diodato N

    更新日期:2005-06-01 00:00:00

  • Dynamic eco-efficiency evaluation of the semiconductor industry: a sustainable development perspective.

    abstract::Serious environmental problems have accompanied remarkable global economic growth for decades. To assist managers in the semiconductor industry with economic and environmental management, this study executes DuPont analysis to examine economic impacts from the effective implementation of sustainability initiatives. We...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Lin F,Lin SW,Lu WM

    更新日期:2019-06-14 00:00:00

  • Dispersion and retrievability of water quality indicators during tidal cycles in coastal Salaya, Gulf of Kachchh (West coast of India).

    abstract::Bacterial indicators in relation to tidal variations were studied at five locations for over 2 days covering three tidal cycles in the southwestern region of Gulf of Kachchh, India. Tidal flow here is predominantly in the east west direction and can transport particles up to 32 km. Tidal amplitude appears to play a pr...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Mohandass C,Kumar SJ,Ramaiah N,Vethamony P

    更新日期:2010-10-01 00:00:00

  • Metal and metallothionein concentrations in Paracentrotus lividus from Amvrakikos gulf (Ionian Sea-Greece).

    abstract::Concentrations of Cd, Cu, Cr, Ni, Zn, Fe and metallothioneins (MTs) were measured in the gonads of Paracentrotus lividus from Amvrakikos gulf (Ionian Sea, Greece). Three natural populations were selected; two of them, growing inside the gulf (Agios Thomas and Koronisia), presented higher density and smaller body size ...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Strogyloudi E,Pancucci-Papadopoulou MA,Papadopoulos GL

    更新日期:2014-09-01 00:00:00

  • Ecological-health risk assessment and bioavailability of potentially toxic elements (PTEs) in soil and plant around a copper smelter.

    abstract::Soil and the dominant plant species in the vicinity of Khatoon Abad copper smelter in Kerman province of Iran are examined to determine contamination, bioavailability, and ecological-health risk of potentially toxic elements (PTEs) based on 23 collected soil samples and 13 Artemisia siebri plant species. Cu, Mo, As, a...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Nematollahi MJ,Keshavarzi B,Zaremoaiedi F,Rajabzadeh MA,Moore F

    更新日期:2020-09-14 00:00:00

  • Potential of tea plants in carbon sequestration in North-East India.

    abstract::The potential of carbon (C) sequestration through photosynthesis depends on the nature of different plant species. Tea (Camellia sinensis L.) is an evergreen perennial plant and cultivated over a wide region in the world, and its potential to sequestrate atmospheric carbon dioxide (CO2) in plant biomass is already eva...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Pramanik P,Phukan M

    更新日期:2020-03-04 00:00:00

  • Meiofauna ratios as environmental indicators in the profundal depths of large lakes.

    abstract::Two sets of samples from Lake Päijänne and one from Lake Ladoga were used to examine the relations between the meiofauna and environmental variables. The most obvious indicators of an unpolluted environment were, in order of importance, the true meiofauna/total meiofauna ratio, the proportion of Aeolosomatidae, the pr...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Särkkä J

    更新日期:1996-09-01 00:00:00

  • Fuzzy-GA modeling in air quality assessment.

    abstract::In this paper, the authors have suggested and implemented the defined soft computing methods in air quality classification with case studies. The first study relates to the application of Fuzzy C mean (FCM) clustering method in estimating pollution status in cities of Maharashtra State, India. In this study, the compu...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Yadav J,Kharat V,Deshpande A

    更新日期:2015-04-01 00:00:00

  • Heavy metal contents of the karasu creek sediments, Nigde, Turkey.

    abstract::Heavy metal contamination in sediments of the Karasu spring was investigated in the presented study. In this respect, sediment samples were collected from contaminant sites along the spring starting from the spring water manifestation site, base of the Akkaya dam to the dam exit site. Heavy metal concentrations were d...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Yalcin MG,Narin I,Soylak M

    更新日期:2007-05-01 00:00:00

  • The challenges of conducting environmental research on privately owned land.

    abstract::Accessing research sites is an integral part of a research in the world today. Researching sites on privately owned lands creates unique challenges when compared to conducting research on government or publicly owned land. This study explores different methods for obtaining landowner information, permission to sample ...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Hargiss CL,DeKeyser ES

    更新日期:2014-02-01 00:00:00

  • Assessment of the variability in response of radish and brinjal at biochemical and physiological levels under similar ozone exposure conditions.

    abstract::The present investigation was done to evaluate the effects of ambient air pollutants on physiological and biochemical characteristics of radish (Raphnus sativa L. var. Pusa Reshmi) and brinjal (Solanum melongena L. var. Pusa hybrid-6) plants grown in open-top chambers with filtered (FCs) and non-filtered (NFCs) treatm...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Tiwari S,Agrawal M

    更新日期:2011-04-01 00:00:00

  • A spatio-temporal index for heat vulnerability assessment.

    abstract::The public health consequences of extreme heat events are felt most intensely in metropolitan areas where population density is high and the presence of the urban heat island phenomenon exacerbates the potential for prolonged exposure. This research develops an approach to map potential heat stress on humans by combin...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Kershaw SE,Millward AA

    更新日期:2012-12-01 00:00:00

  • Micro level analyses of environmentally disastrous urbanization in Bangalore.

    abstract::Indian metropolitan (tier I) cities have been undergoing rapid urbanization during the post-globalization era with the unprecedented market interventions, which have led to the rapid land cover changes affecting the ecology, climate, hydrology, and local environment. The unplanned urbanization has given way to the dis...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Ramachandra TV,Sellers J,Bharath HA,Setturu B

    更新日期:2020-01-27 00:00:00

  • Models for estimation of the presence of non-regulated disinfection by-products in small drinking water systems.

    abstract::Among all the organic disinfection by-products (DBPs), only trihalomethanes (THMs) and haloacetic acids (HAAs) are regulated in drinking water, while most DBPs are not. Very little information exists on the occurrence of non-regulated DBPs, particularly in small water systems (SWS). Paradoxically, SWS are more vulnera...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Guilherme S,Rodriguez MJ

    更新日期:2017-10-23 00:00:00

  • Measuring coral size-frequency distribution using stereo video technology, a comparison with in situ measurements.

    abstract::Coral colony size-frequency distribution data offer valuable information about the ecological status of coral reefs. Such data are usually collected by divers in situ, but stereo video is being increasingly used for monitoring benthic marine communities and may be used to collect size information for coral colonies. T...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Turner JA,Polunin NV,Field SN,Wilson SK

    更新日期:2015-05-01 00:00:00

  • Determination of heavy metals (Cd, Cr, Cu, Fe, Ni, Pb, Zn) by ICP-OES and their speciation in Algerian Mediterranean Sea sediments after a five-stage sequential extraction procedure.

    abstract::Surface sediment samples (n = 18) were collected from the Algerian Mediterranean coasts and analyzed for seven metals using inductively coupled plasma-optical emission spectrometry in order to asses the distribution and bioavailability of metals and to study the anthropogenic factors affecting their concentrations. Se...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Alomary AA,Belhadj S

    更新日期:2007-12-01 00:00:00

  • Selecting indicator species to monitor ecological integrity: a review.

    abstract::We review critical issues that must be considered when selecting indicator species for a monitoring program that aims to maintain or restore ecological integrity. First, we examine the pros and cons of different management approaches on which a conservation program can be based and conclude that ecosystem management i...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章,评审


    authors: Carignan V,Villard MA

    更新日期:2002-08-01 00:00:00

  • Estimation of chlorophyll a content in inland turbidity waters using WorldView-2 imagery: a case study of the Guanting Reservoir, Beijing, China.

    abstract::Complex optical properties, such as non-pigment suspension and colored dissolved organic matter (CDOM), make it difficult to achieve accurate estimations of remotely sensed chlorophyll a (Chla) content of inland turbidity. Recent attempts have been made to estimate Chla based on red and near-infrared regions where non...

    journal_title:Environmental monitoring and assessment

    pub_type: 杂志文章


    authors: Wang X,Gong Z,Pu R

    更新日期:2018-09-29 00:00:00