Blar i NIVA-rapporter på emneord "analyse"
Viser treff 21-40 av 115
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Eutrofisituasjonen i Ytre Oslofjord 1989. Delprosjekt 4.6b: Verifikasjon av modellresultater mot satelittdata
(NIVA-rapport;2462, Research report, 1990)En numerisk modell for overflatestrømmer, som inkluderer en enkel simulering av spredning av nitrogen med ferskvann fra Glomma og Drammenselva, er sammenlignet med fjernmålingsdata fra satelitt (7 situasjoner). Modellen ... -
Fjernmåling av vannkvalitet - Evaluering av anvendelsesområder for satellitt og flybårne sensordata for overvåking av vannkvalitet
(NIVA-rapport;2567, Research report, 1991)Evalueringen understreker at passive satelitt- og flybårne sensordata vil gi bedre kunnskap om vannkvaliteten i våre vassdrag, kyst- og havneområder. Ut fra dagens erfaringer er det anvendelsesområder knyttet til studier ... -
Fjernmåling av vannkvalitet - Videreutvikling av optisk satelittfjernmåling som metode for overvåking av vannkvalitet
(NIVA-rapport;2860, Research report, 1993)Det er gjennomført en undersøkelse for å se hvordan data fra jordressurssatellittene Landsat og SPOT best kan benyttes for overvåking av enkelte vannkvalitetsparametere i forurensede ferskvanns- og sjøvannsresipienter. ... -
Forskningspampanjen for skoler 2005. Bakterier i drikkevann
(NIVA-rapport;5167, Research report, 2006)NIVA arrangerte, i samarbeid med NILU og Utdanningsdirektoratet, en forskningskampanje for skoleklasser i forbindelse med Forskningsdagene 2005. Skoleklassene som deltok fikk tilsendt utstyr for analyse av bakterieinnholdet ... -
Forsøksvirksomhet med Vassdragsregisterets delregister "rapporter"
(NIVA-rapport;2029, Research report, 1987)NVE-VU har under oppbygging et nasjonalt informasjons-system - kalt "Vassdragsregisteret" - som skal inneholde en samlet oversikt over tilgjengelig informasjon om norske vassdrag og nedbørfelt. Systemet består av flere ... -
Følsomhetsanalyse for parametre i avløpsnettberegninger. Fase I
(NIVA-rapport;1910, Research report, 1986)Det er utført følsomhetsanalyse for sentrale parametre i avløpsnettberegninger. Avløpsledningsnettmodellen NIVANETT er benyttet på en Olivetti mikrodatamaskin (PC). Et virkelig avløpsnett i Oslo, samt to hypotetiske ... -
Instrumentering og prøvetaking ved enkel kontroll av utslipp til luft og vann
(NIVA-rapport;1970, Research report, 1987)Enkle metoder for prøvetaking og bestemmelse av forurensninger i utslipp til luft og vann er beskrevet. For utslipp til luft er det omtalt metoder for bestemmelse av utslippsvolum, nitrogenoksider, karbonmonoksid, svoveldioksyd ... -
Intercalibration 8802 (ICP Waters report)
(NIVA-rapport;2153, Research report, 1988-08)Ten laboratories in nine countries participated in the second intercalibration, 8802. Based on the general target accuracies of 20%, all the results were acceptable for conductivity, nitrate, sulfate and sodium. For chloride, ... -
Intercalibration 9004. pH and alkalinity (ICP Waters report)
(NIVA-rapport;2465, Research report, 1990-08)Eleven laboratories in ten countries participated in intercalibration 9004, especially designed for testing of pH and alkalinity determination. The estimate of a total error of +/- 0.2 pH units seems to be a reasonable ... -
Intercalibration 9105. pH, conductivity, alkalinity, nitrat + nitrite, chloride, sulfate, calcium, magnesium, sodium, potassium and total organic carbon (ICP Waters report)
(NIVA-rapport;2591, Research report, 1991-07)21 laboratories in 15 countries participated in intercalibration 9105. Basedon the general target accuracy of +/- 20 %, 90 - 100 % of the results were acceptable for all the main components, only 0-2 result pairs lying ... -
Intercalibration 9206. pH, conductivity, alkalinity, nitrat + nitrite, chloride, sulfate, calium, magnesium, sodium, potassium, aluminium and dissolved organic carbon (ICP Waters report)
(NIVA-rapport;2784, Research report, 1992-10)23 laboratories in 18 countries participated in intercalibration 9206. Based on the general target accuracy of ± 20 %, about 80 - 90 % of the results were acceptable for the main components. However, for pH only 30 and 70 ... -
Intercalibration 9307. pH, conductivity, alkalinity, nitrate + nitrite, chloride, sulfatw, calcium, magnesium, sodium, potassium, total aluminium, reactive and non-labile aluminium, dissolved organic carbon, and chemical oxygen demand (ICP Waters report)
(NIVA-rapport;2948, Research report, 1993-09)26 laboratories in 19 countries participated in intercalibration 9307. Based on the general target accuracy of +29%, 81% of the results were accceptable. However, for pH only 52% of the result pairs were acceeptable in ... -
Intercalibrition 8903. Dissolved organic carbon, and aluminium fractions (ICP Waters report)
(NIVA-rapport;2238, Research report, 1989-04)Ten laboratories in ten countries participated in the third intercalibration, 8903. Based on the general target accuracies of +/- 20%, all the results were acceptable for dissolved organic carbon. Acceptable results for ... -
Intercomparison 0014: pH, Cond, HCO3, NO3+ NO2, Cl, SO4,Ca, Mg, Na, K, total-aluminium, aluminium - reactive and nonlabile, DOC, COD-Mn, Fe, Mn, Cd, Pb, Cu, Ni and Zn (ICP Waters report 55/2000)
(NIVA-rapport;4281, Research report, 2000-09)71 laboratories received samples for the intercomparison 0014, and 65 laboratories in 26 countries submitted results. Three sample sets were used, one for the determination of major ions, one for organic matter and aluminium ... -
Intercomparison 0115: pH, K25, HCO3, NO3+ NO2, Cl, SO4,Ca, Mg, Na, K, total aluminium, aluminium - reactive and nonlabile, TOC, COD-Mn, Fe, Mn, Cd, Pb, Cu, Ni and Zn (ICP Waters report 64/2001)
(NIVA-rapport;4416, Research report, 2001-08)77 laboratories received samples for the intercomparison 0115, and 72 laboratories in 26 countries submitted results. Three sample sets were used, one for the determination of major ions, one for organic matter and aluminium ... -
Intercomparison 9408. pH, conductivity, alkalinity, nitrate + nitrite, chloride, sulfate, calcium, magnesium, sodium, potassium, total aluminium, dissolved organic carbon, and chemical oxygen demand (ICP Waters report)
(NIVA-rapport;3142, Research report, 1994-10)26 laboratories in 17 countries participated in intercomparison 9408. Based on the general target accuracy of +-20%, 81% of the results were acceptable. However, for pH only 54% and 59% of the result pairs in the two sample ... -
Intercomparison 9509. pH, conductivity, alkalinity, nitrate +/- nitrite, chloride, sulfate, calcium, magnesium, sodium, potassium, total aluminium, reactive and non-labile aluminium, dissolved organic carbon, and chemical oxygen demand (ICP Waters report)
(NIVA-rapport;3331, Research report, 1995-10)46 laboratories in 21 countries participated in intercomparison 9509. Two sample sets, one for the major ions and one for organic matter and aluminium fractions, were used. Based on the general target accuracy of + 20 %, ... -
Intercomparison 9610, pH, conductivity, alkalinity, nitrate + nitrite, chloride, sulfate, calcium, magnesium, sodium, potassium, total aluminium, reactive and non-labile aluminium, dissolved organic carbon, and chemical oxygen demand (ICP Waters report)
(NIVA-rapport;3550, Research report, 1996-10)36 laboratories in 21 countries participated in intercomparison 9610. Two sample sets, one for the major ions and one for organic matter and aluminium fractions, were used. Based on the general target accuracy of + 20%, ... -
Intercomparison 9711. pH, conductivity, alkalinity, nitrate + nitrite, chloride, sulfate, calcium, magnesium, sodium, potassium, total aluminium, reactive and non-labile aluminium, dissolved organic carbon, and chemical oxygen demand (ICP Waters report)
(NIVA-rapport;3716, Research report, 1997-11)47 laboratories in 22 countries participated in intercomparison 9711. One sample set for the determination of major ions, organic matter and aluminium fractions, were used. Based on the general target accuracy of + 20%, ... -
Intercomparison 9812. pH, conductivity, alkalinity, nitrate + nitrite, chloride, sulfate, calcium, magnesium, sodium, potassium, total aluminium, reactive and non-labile aluminium, dissolved organic carbon, and chemical oxygen demand (ICP Waters report 49/1998)
(NIVA-rapport;3939, Research report, 1998-10)43 laboratories in 20 countries participated in intercomparison 9812. One sample set for the determination of major ions, organic matter and aluminium fractions, were used. Based on the general target accuracy of * 20 %, ...