Browsing Norsk institutt for vannforskning by Subject "overvåking"
Now showing items 161-180 of 663
-
Indre Oslofjord. Delrapport 1: Befaring og undersøkelse av vassdragsmålestasjoner i tilløpsvassdrag til Indre Oslofjord
(NIVA-rapport;2302, Research report, 1989)Rapporten er en kritisk vurdering av overvåkingsstasjonene i tilløpsvassdragene til Indre Oslofjord -
Informasjonssystem for overvåking av Norges vannressurser. Rapport fra forprosjektfasen
(NIVA-rapport;1156, Research report, 1979)Rapporten skisserer et mulig norsk overvåkingsopplegg for 1980- årene. Man oppsummerer utgangspunktet og antyder en trinnvis utviklingslinje frem mot det endelige informasjonssystemet. I rapporten er samlet over 150 faglige ... -
Innfrysing av krypsiv nedstrøms Brokke kraftverk vinteren 2011; vurdering av drift og sedimentasjon av løsrevet krypsiv på stasjoner i Otra nedstrøms tiltaket
(NIVA-rapport;6337, Research report, 2012)I februar 2011 ble det utført et tiltak med innfrysning av krypsiv nedstrøms Brokke kraftverk i Otra. Da kraftverket startet opp igjen, ble store mengder fastfrosset krypsiv revet løs fra elvebunnen og ført nedover vassdraget. ... -
Intercalibration 0005: Invertebrate fauna (ICP Waters report 62/2001)
(NIVA-rapport;4384, Research report, 2001-04)The 5th intercalibration of invertebrates in the ICP Waters programme had contribution from 6 laboratories. Three of the laboratories delivered a pool of biological material from their home region as source material for ... -
Intercalibration 0206: Invertebrate fauna (ICP Waters report 66/2002)
(NIVA-rapport;4494, Research report, 2002-01)The 6th intercalibration of invertebrates in the ICP-Water programme had contribution from 6 laboratories. All of the laboratories identified a high portion of the individuals in the testsamples, usually >90% of the total ... -
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 9804: Invertebrate fauna (ICP Waters report 47/1998)
(NIVA-rapport;3912, Research report, 1998-08)The 4th intercalibration of invertebrates in the ICP-Water programme had contribution from 6 laboratories. 5 of the laboratories identified a high portion (>85%) of the total number of species in the test samples. Short-coming ... -
Intercalibration of Invertebrate Fauna. 9301 (ICP Waters report)
(NIVA-rapport;2952, Research report, 1993-10)Eleven laboratories in seven countries participated in the first intercalibration on the invertebrate fauna. Compared with general accuracies of 20% the identification of the fauna was very good. For the whole material the ... -
Intercalibration: Invertebrate fauna 0307 (ICP Waters report 72/2003)
(NIVA-rapport;4659, Research report, 2003-03)The 7th intercalibration of invertebrates in the ICP-Water programme had contribution from 6 laboratories. All of the laboratories identified a high portion of the individuals in the test samples, usually ³ 90% of the total ... -
Intercalibration: Invertebrate fauna 09/04 (ICP Waters report 77/2004)
(NIVA-rapport;4863, Research report, 2004-04)The 8th intercalibration of invertebrates in the ICP Waters programme had contribution from 4 laboratories. All of the laboratories identifed a high portion of the individuals in the testsamples, usually >90% of the total ... -
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 0216: pH, K25, HCO3, NO3+ NO2, Cl, SO4, Ca, Mg, Na, K, Fe, Mn, Cd, Pb, Cu,Ni and Zn (ICP Waters report 68/2002)
(NIVA-rapport;4558, Research report, 2002-08)79 laboratories received samples for the intercomparison 0216, and 75 laboratories in 27 countries submitted results. Two sample sets were used, one for the determination of major ions, and one for heavy metals. Based on ... -
Intercomparison 0317: pH, Cond, HCO3, NO3+NO2 C1, SO4, Ca, Mg, Na, K, Fe, Mn, Cd, Pb, Cu, Ni and Zn (ICP Waters report 74/2003)
(NIVA-rapport;4715, Research report, 2003-11)75 laboratories received samples for the intercomparison 0317, and 69 laboratories in 27 countries submitted results. Two sample sets were used, one for the determination of major ions, and one for heavy metals. Based on ... -
Intercomparison 0418: pH, Cond, HCO3 NO3+NO2, C1, SO4, Ca, Mg, Na, K, Fe, Mn, Cd, Pb, Cu, Ni, and Zn (ICP Waters report 78/2004)
(NIVA-rapport;4875, Research report, 2004-11)68 laboratories received samples for the intercomparison 0418, and 63 laboratories in 27 countries submitted results. Two sample sets were used, one for the determination of major ions, and one for heavy metals. Based on ... -
Intercomparison 0519: pH, Cond, HCO3, NO3+NO2, C1, SO4, Ca, Mg, Na, K, Fe, Mn, Cd, Pb, Cu, Ni, and Zn (ICP Waters report 82/2005)
(NIVA-rapport;5068, Research report, 2005-09)79 laboratories received samples for the intercomparison 0519, and 75 laboratories in 30 countries submitted results. Two sample sets were used, one for the determination of major ions, and one for heavy metals. Based on ... -
Intercomparison 0620: pH, Cond, HCO3, NO3+NO2, Cl, SO4, Ca, Mg, Na, K, Fe, Mn, Cd, Pb, Cu, Ni and Zn (ICP Waters report 86/2006)
(NIVA-rapport;5285, Research report, 2006-10)73 laboratories received samples for the intercomparison 0620, and 67 laboratories in 26 countries submitted results. Two sample sets were used, one for the determination of major ions, and one for heavy metals. Based on ... -
Intercomparison 0721: pH, Cond, HCO3, NO3-N, C1, SO4, Ca, Mg, Na, K, Fe, Mn, Cd, Pb, Cu, Ni, and Zn (ICP Waters report 90/2007)
(NIVA-rapport;5486, Research report, 2007-11)75 laboratories received samples for the intercomparison 0721, and 72 laboratories in 28 countries submitted results. Two sample sets were used, one for the determination of major ions, and one for heavy metals. Based on ... -
Intercomparison 0822: pH, Cond, HCO3, NO3-N, C1, SO4, Ca, Mg, Na, K, Fe, Mn, Cd, Pb, Cu, Ni, and Zn (ICP Waters report 93/2008)
(NIVA-rapport;5660, Research report, 2008-09)76 laboratories received samples for the intercomparison 0822, and 74 laboratories in 29 countries submitted results. Two sample sets were used, one for the determination of major ions, and one for heavy metals. Based on ...