Blar i NIVA-rapporter på tittel
Viser treff 642-661 av 6992
-
Country Case Study on Climate Change Impacts and Adaptation Assessment in Antigua and Barbuda Water Resources Management
(NIVA-rapport;3798, Research report, 1998)This Report is a summary of findings from a mission to Antigua & Barbuda August 12 - 16, 1997. The quality and quantity of fresh water resources in Antigua and Barbuda are particularly vulnerable to climate change. The ... -
Critical limits for surface water acidification in Norwegian critical loads calculation and Water Framework Directive classification
(NIVA-rapport;6741, Research report, 2014)The objective of this study was to compare the critical limits for surface water acidification used in the critical loads calculation under the UNECE Convention on Long-range Transboundary Air Pollution and the EU Water ... -
Critical load exceedance and damage to fish populations
(NIVA-rapport;2900, Research report, 1993)To examine the relationship between the critical load exceedance and the damage to fish, the data for fish damage and water chemistry for 1000 lakes in Norway was used to derive the probability of damage to fish populations ... -
Critical load of acidity to surface waters in South-central Ontario Canada I. Application of the Steady State Water Chemistry (SSWC) model
(NIVA-rapport;4427, Research report, 2001)The Steady-State Water Chemistry Model was applied to lakes in 5 regions in Ontario, Canada. Critical loads and exceedances calculated for the regions indicate that the portion of the lakes with exceedances dropped from ... -
Critical Load of Acidity to Surface Waters in Southcentral Ontorario, Canada
(NIVA-rapport;4567, Research report, 2002)The First-order Acidity Balance (FAB) model was applied to 291 lakes in the Muskoka river catchment in Ontario, Canada. Critical loads and exceedances calculated for the region indicate that the portion of the lakes with ... -
Critical loads and the MAGIC model. Evaluating the country-scale applications in Norway using data from the 2019 national lake survey
(NIVA-rapport;7557, Research report, 2020)The critical loads methodology used at the national scale in Norway and the MAGIC model as applied to the lakes in the national 1000-lake survey have been evaluated, making use of the data from the 2019 national lake survey. ... -
Critical loads and their exceedances for ICP-Waters sites (ICP Waters report 44/1998)
(NIVA-rapport;3821, Research report, 1998-03)The International Co-operative Programme on Assessment and Monitoring of Acidification of Rivers and Lakes (ICP Waters) is designed to assess, on a regional basis, the degree and geographical extent of acidification of ... -
Critical loads for lead (Pb) and cadmium (Cd) in surface waters in Norway - evaluation of methodology and preliminary maps
(NIVA-rapport;4808, Research report, 2004)Critical loads for lead (Pb) and cadmium (Cd) are calculated for Norwegian surface waters based on currently available methodology from the UNECE ICP Mapping and Modelling program. Two different values are used for critical ... -
Critical loads for nitrogen in fjords; evaluation of effects of niotrogen leaching from explosives used for E18 road construction i Aust-Agder
(NIVA-rapport;5470, Research report, 2007)The new road, E18, between Grimstad and Kristiansand in Aust-Agder county, will be constructed by blasting of about 15.9 mill. tons (7.7 mill m3) of rock. This will be carried out by use of 0.65 or 2.5 kg explosives per ... -
Critical loads for soil in Norway, Nordmoen
(NIVA-rapport;2605, Research report, 1991)We evaluate the critical load for soil and water at Nordmoen using the dynamic model Magic, the static PROFILE model, and the empirical method as suggested by the mapping handbook. Nordmoen is located about 60 km N of Oslo ... -
Critical loads for soils in Norway. Analyses of soils data from eight Norwegian catchments
(NIVA-rapport;2484, Research report, 1990)Assessment of critical loads for soil at the catchment scale requires estimates of soil properties characteristic of the catchment. Soil data collected in routine soil surveys must thus be aggregated both spatially and ... -
Critical loads for soils in Norway. Preliminary assessment based on data from 9 calibrated catchments
(NIVA-rapport;2483, Research report, 1990)Critical load for acid deposition with respect to soils are calculated for 9 calibrated catchments in southern Norway. Two methods recommended by the UN-ECE Handbook on Mapping Critical Loads were used: The stratic empirical ... -
Critical loads for surface waters - chemical criteria for inputs of strong acids
(NIVA-rapport;2466, Research report, 1990)Chemical criteria have been established for the critical loads of strong acids to surface waters in Norway. A complete set of data is available for all the counties with the exception of North Trøndelag, Nordland, Troms ... -
Critical loads of a acidity to surface waters - Svalbard
(NIVA-rapport;2941, Research report, 1993)Water samples from 162 sites from Svalbard and Bjørnøya were analysed. A precipitation map for Svalbard was prepared. Coloured maps of critical loads and exceedance of critical loads were made for inputs of strong acids. ... -
Critical Loads of Acidity to Freshwater - Fish and Invertebrates
(NIVA-rapport;2732, Research report, 1992)Chemical criteria have been established for estimating critical loads of acid precipitation to surface waters. Acid neutralization capacity (ANC) was used as chemical component for describing the critical limits for ... -
Critical loads of acidity to lakes in the Polish Tatra Mountains. A study of the yearly variations in the precipitation and water chemistry
(NIVA-rapport;2981, Research report, 1994)As part of the Agreement on Environmental Cooperation between Norway and Poland critical loads of acidity and their exceedance to two lakes in the Polish Tatra Mountains have been calculated after an extensive programme ... -
Critical loads of acidity to lakes in the Polish Tatra Mountains. Final report
(NIVA-rapport;3579, Research report, 1996)Major chemical compounds in precipitation and runoff have been intensively followed in two Polish, Tatra Mountain lakes (Dlugi Staw and Zielony Staw) since January 1993, to assess the degree of impact of acid precipitation. ... -
Critical loads of acidity to surface waters: A case study from the Polish Tatra Mountains
(NIVA-rapport;2725, Research report, 1992)As part of the Agreement on Environmental Cooperation between Norway and Poland critical loads of acidity and their exceedance to lakes in the granitic area of the Polish Tatra Mountains have been estimated. Lake samples ... -
Critical Loads, Target Load Functions and Dynamic Modelling for Surface Waters and ICP Waters Sites (ICP Waters report 83/2006)
(NIVA-rapport;5166, Research report, 2006-08)Critical load functions (CLF) for ICP Water sites estimated with the FAB model and based on recent data (2000-02) do not differ greatly from those based on earlier data (1992-94/5). The ICP Waters sites in Europe are largely ... -
Critical oxygen levels for demersal fishes and invertebrates
(NIVA-rapport;3917, Research report, 1998)The literature has been reviewed for information on hypoxic responses in marine bottom-living invertebrates and fishes, as a basis to define safe oxygen conditions for marine bottom communities in the North Sea and adjacent ...