25 research outputs found
Asuinalueen parannusopas
Tämä Asuinalueen parannusopas on Rakennusteollisuus RT:n koordinoiman Ketterä-tutkimushankkeen loppuraportti. Raportin tavoitteena on tuoda esiin näkökantoja ja menettelytapoja, joita voidaan hyödyntää asuinalueen parantamisessa ja kehittämisessä. Tutkimushankkeen primäärisenä tavoitteena oli kehittää asukasymmärrykseen perustuva asuinalueiden korjausmalli. Pääpaino oli siten alueiden fyysisen ympäristön parantamiseen liittyvissä näkökulmissa. Lisäksi hankkeen tavoitteina oli parantaa asunto-osakeyhtiöiden hallitusten jäsenten tietoisuutta niin korjausvaihtoehdoista kuin niiden kustannuksista ja saavutettavista hyödyistä sekä tukea asunto-osakeyhtiöiden päätöksentekoa korjaushankkeiden käynnistämisessä.
Tutkimushankkeen tarkastelukohteena oli Helsingissä sijaitseva Siltamäen asuinalue, joka koostuu vuosina 1968-1974 rakennetuista asunto-osakeyhtiöistä. Alueen rakennukset ovat jo teknisesti vanhentuneet, erityisesti LV-järjestelmät sekä julkisivut ovat teknisen käyttöikänsä lopussa. Myös alueella oleva ostoskeskus on rakenteellisesti erittäin huonossa kunnossa. Asunto-osakeyhtiöissä osakkaat joutuvat itse rahoittamaan vaadittavat korjaukset vaikka valtio on tukenut viime vuosina esimerkiksi energiakorjauksia. Mahdollisia rahoitusvaihtoehtoja ovat perinteinen yhtiökohtainen lainoitus, yhtiövastikkeilla kerätyt ennakkosäästöt tai omaisuuden, kuten rakennusoikeuden, myyminen lisä- ja täydennysrakentamiselle.
Varsinainen korjaushanke voidaan toteuttaa monella eri tavalla. Toteutusmuodon valinnassa keskeistä on pohtia millainen toteutusmuoto täyttää tilaajan hankkeelle asettamat tavoitteet, sillä eri toteutusmuodoilla on erilaiset riskiprofiilit ja niiden ominaisuudet tukevat vaihtelevalla tavalla tavoitteiden saavuttamista. Tilaajana voi toimia yksittäinen taloyhtiö tai taloyhtiöiden muodostama yhteenliittymä.
Keskeistä asuinalueen parantamisessa on, että alueen taloyhtiöt tekevät keskenään tiivistä yhteistyötä hankkeen muodostamisessa. Alueellisella yhteistyöllä on mahdollista vaikuttaa hyvin voimakkaasti asuinalueen parantamiseen ja kehittämiseen yhteisen vision ja tahtotilan mukaisesti. Ilman yhteistä visiota ja tahtotilaa, koko alueen parantaminen jää väistämättä takaalalle kunkin taloyhtiön keskittyessä vain oman yhtiön rakenteellisiin korjauksiin. Yhteisesti muodostettu visio ja sen täyttämiseksi tehtävä ponnistus tuo myös yhteisiä etuja ja hyötyjä niin yksittäiselle osakkaalle, taloyhtiölle kuin myös yhteiskunnalle sekä ympäristölle
Similar temperature sensitivity of soil mineral-associated organic carbon regardless of age
Most of the carbon (C) stored in temperate arable soils is present in organic matter (OM) intimately associated with soil minerals and with slow turnover rates. The sensitivity of mineral-associated OM to changes in temperature is crucial for reliable predictions of the response of soil C turnover to global warming and the associated flux of carbon dioxide (CO2) from the soil to the atmosphere. We studied the temperature sensitivity of C in 63 mu m fractions rich in particulate organic matter (POM). The fractions were isolated by physical separation of two light-textured arable soils where the C4-plant silage maize had replaced C3-crops 25 years ago. Differences in C-13 abundance allowed for calculation of the age of C in the soil-size fractions (old C, C3-C > 25 years; recent C, C4-C <25 years). We incubated bulk soils ( <2 mm) and size fractions sequentially at 6, 18, 26 and 34 degrees C (ramping up and down the temperature scale) and calculated the temperature sensitivity of old and recent C from (CO2)-C-12 and (CO2)-C-13 evolution rates. The temperature sensitivity was similar or slightly higher for POM than for MOM. Within the POM fraction, old C3-C was more sensitive to changes in temperature than recent C4-C. For the MOM fraction, the temperature sensitivity was unrelated to the age of C. Quantitative PCR analysis indicated that the proportions of bacteria, archaea and fungi did not change during incubation. Our results suggest that while OM stabilizing mechanisms affect the temperature sensitivity of soil C, temperature sensitivity appears unrelated to the age of mineral-associated OM.Peer reviewe
Strong Interactive Effects of Warming and Insect Herbivory on Soil Carbon and Nitrogen Dynamics at Subarctic Tree Line
Warming will likely stimulate Arctic primary production, but also soil C and N mineralization, and it remains uncertain whether the Arctic will become a sink or a source for CO2. Increasing insect herbivory may also dampen the positive response of plant production and soil C input to warming. We conducted an open-air warming experiment with Subarctic field layer vegetation in North Finland to explore the effects of warming (+3°C) and reduced insect herbivory (67% reduction in leaf damage using an insecticide) on soil C and N dynamics. We found that plant root growth, soil C and N concentrations, microbial biomass C, microbial activity, and soil NH4+ availability were increased by both warming and reduced herbivory when applied alone, but not when combined. Soil NO3– availability increased by warming only and in-situ soil respiration by reduced herbivory only. Our results suggest that increasing C input from vegetation under climate warming increases soil C concentration, but also stimulates soil C turnover. On the other hand, it appears that insect herbivores can significantly reduce plant growth. If their abundance increases with warming as predicted, they may curtail the positive effect of warming on soil C concentration. Moreover, our results suggest that temperature and herbivory effects on root growth and soil variables interact strongly, which probably arises from a combination of N demand increasing under lower herbivory and soil mineral N supply increasing under higher temperature. This may further complicate the effects of rising temperatures on Subarctic soil C dynamics.</p
Performance of the FMI cosine error correction method for the Brewer spectral UV measurements
Non-ideal angular response of a spectroradiometer is a well-known error source of spectral UV measurements and for that reason instrument specific cosine error correction is applied. In this paper, the performance of the cosine error correction method of Brewer spectral UV measurements in use at the Finnish Meteorological Institute (FMI) is studied. Ideally, the correction depends on the actual sky radiation distribution, which can change even during one spectral scan due to rapid changes in cloudiness. The FMI method has been developed to take into account the changes in the ratio of direct to diffuse sky radiation and it derives a correction coefficient for each measured wavelength. Measurements of five Brewers were corrected for the cosine error and the results were compared to the reference travelling spectroradiometer (QASUME). Measurements were performed during the RBCC-E (Regional Brewer Calibration Center – Europe) X Campaign held at El Arenosillo, Huelva (37∘ N, 7∘ W), Spain, in 2015. In addition, results of site audits of FMI's Brewers in Sodankylä (67∘ N, 27∘ E) and Jokioinen (61∘ N, 24∘ E) during 2002–2014 were studied. The results show that the spectral cosine error correction varied between 4 and 14 %. After that the correction was applied to Brewer UV spectra the relative differences between the QASUME and the Brewer diminished even by 10 %. The study confirms that the method, originally developed for measurements at high latitudes, can be used at mid-latitudes as well. The method is applicable to other Brewers as far as the required input parameters, i.e. total ozone, aerosol information, albedo, instrument specific angular response and slit function are available.This article is based upon work from the COST Action ES1207 “A European Brewer Network (EUBREWNET)”, supported by COST (European Cooperation in Science and Technology). This study was partially supported by the research projects CGL2014-56255-C2-1-R and CGL2014-56255-C2-2-R granted by the Ministerio de Economa y Competitividad from Spain
In search of traceability : two decades of calibrated Brewer UV measurements in Sodankyla and Jokioinen
The two Brewer spectrophotometers of the Finnish Meteorological Institute at Jokioinen and Sodankyla have been operated according to the highest levels of the WMO/GAW (World Meteorological Organization/Global Atmosphere Watch) recommendations with rigorous quality control and quality assurance. The calibration of the instruments is based on annual recalibrations of primary standard lamps in the VTT MIKES Metrology National Standards Laboratory in Finland and an exhaustive measurement program with measurements of standard and working lamps in the on-site optical laboratories. Over the years, the maintenance of the calibration has produced data sets of approximately 2000 lamp scans for both instruments. An extensive re-examination of the lamp measurements and the response of the spectrophotometers was carried out. The primary standard lamps were found to age on an average rate of 0.3% per burn. The responsivity at wavelength 311 nm was found to exhibit both long-term and short-term changes. The overall long-term change was declining. In addition, abrupt changes of as large as 25% were detected. The short-term changes were found to fluctuate on time frames shorter than the interval between the measurements of the primary standard lamps. This underlines the importance of the use of more frequently measured working standard lamps.Peer reviewe
Data flow of spectral UV measurements at Sodankylä and Jokioinen
The data flow involved in a long-term continuous solar spectral UV irradiance monitoring program is investigated and structured to provide an overall view on the multiphase process from data acquisition to the final products. The program employing Brewer spectrophotometers as measuring instruments is maintained by the Finnish Meteorological Institute (FMI) ever since the 1990s at two sites in Finland: Sodankyla (67 degrees N) and Jokioinen (61 degrees N). It is built upon rigorous operation routines, processing procedures, and tools for quality control (QC) and quality analysis (QA) under continuous development and evaluation. Three distinct levels of data emerge, each after certain phase in the data flow: Level 0 denoting raw data, Level 1 meaning calibrated data processed in near-real time, and Level 2 comprising of postprocessed data corrected for all distinguishable errors and known inaccuracies. The final products disseminated to the users are demonstrated to result from a process with a multitude of separate steps, each required in the production of high-quality data on solar UV radiation at the Earth's surface.Peer reviewe
ARCH 14 - International Conference on Research on Health Care Architecture - November 19-21, 2014, Espoo, Finland - Conference Proceedings
Healthcare Architecture has grown rapidly in recent years. However, there are still many questions remaining. The commission, therefore, is to share the existing research knowledge and latest results and to carry out research projects focusing more specifically on the health care situation in a variety of contexts. The ARCH14 conference was the third conference in the series of ARCH conferences on Research on Health Care Architecture initiated by Chalmers University. It was realized in collaboration with the Nordic Research Network for Healthcare Architecture .It was a joint event between Aalto University, Finnish Institute of Occupational Health (FIOH) and National Institute of Health and Welfare (THL International).The conference gathered together more than 70 researchers and practitioners from across disciplines and countries to discuss the current themes
A molecular-based identification resource for the arthropods of Finland
Publisher Copyright: © 2021 The Authors. Molecular Ecology Resources published by John Wiley & Sons Ltd.To associate specimens identified by molecular characters to other biological knowledge, we need reference sequences annotated by Linnaean taxonomy. In this study, we (1) report the creation of a comprehensive reference library of DNA barcodes for the arthropods of an entire country (Finland), (2) publish this library, and (3) deliver a new identification tool for insects and spiders, as based on this resource. The reference library contains mtDNA COI barcodes for 11,275 (43%) of 26,437 arthropod species known from Finland, including 10,811 (45%) of 23,956 insect species. To quantify the improvement in identification accuracy enabled by the current reference library, we ran 1000 Finnish insect and spider species through the Barcode of Life Data system (BOLD) identification engine. Of these, 91% were correctly assigned to a unique species when compared to the new reference library alone, 85% were correctly identified when compared to BOLD with the new material included, and 75% with the new material excluded. To capitalize on this resource, we used the new reference material to train a probabilistic taxonomic assignment tool, FinPROTAX, scoring high success. For the full-length barcode region, the accuracy of taxonomic assignments at the level of classes, orders, families, subfamilies, tribes, genera, and species reached 99.9%, 99.9%, 99.8%, 99.7%, 99.4%, 96.8%, and 88.5%, respectively. The FinBOL arthropod reference library and FinPROTAX are available through the Finnish Biodiversity Information Facility (www.laji.fi) at https://laji.fi/en/theme/protax. Overall, the FinBOL investment represents a massive capacity-transfer from the taxonomic community of Finland to all sectors of society.Peer reviewe
Asiantuntijalausunto lakivaliokunnalle
"HE 21/2004 vp
laiksi saatavien perinnästä annetun lain muuttamisesta