[ sulge aken ]

Elulookirjeldus (CV)
1.Eesnimi Rein
2.Perekonnanimi Ahas
3.Töökoht Tartu Ülikooli geograafia instituut
4.Ametikoht vanemteadur, inimgeograafia õppetooli hoidja
5.Sünniaeg 10.12.1966 (päev.kuu.aasta)
6.Haridus Luunja Keskkool 1984
Dipl. loodusgeograafia ja looduskaitse (eriprogrammiga), Tartu Ülikool, 1991.
MSc geograafias, Tartu Ülikool, 1994.
PhD geograafias, Tartu Ülikool, 1999.
7.Teenistuskäik Tartu Ülikooli geograafia instituut, erakorraline teadur, 1994–1998.
Tartu Ülikooli geograafia instituut, lektor, 1998–2000.
Tartu Ülikooli zooloogia- ja hüdrobioloogia instituut, erakorraline teadur (järeldoktor), 2000–2002.
Tartu Ülikooli geograafia instituut, vanemteadur, alates 2002.aastast
Eesti Rohelise Liikumise juhatuse liige ja metsatoimkonna koordinaator, osalise tööajaga 1994–2003.
8.Teaduskraad PhD
9.Teaduskraadi välja
andnud asutus, aasta
Tartu Ülikool 1999
10.Tunnustused
11.Teadusorganisatsiooniline
ja –administratiivne
tegevus
ELi programmi COST 725 töögrupi liige alates 2004. aastast.
Osalenud IPCC IV raporti koostamise seminaridel alates 2003. aastast.
FP5RTD Phenological Observations and Satellite Data (NDVI) – Trends in the Vegetation Cycle in Europe (POSITIVE) EVK2-1999-00109, contractor 1999-2002
Olnud 1998. aastal Tartus toimunud rahvusvahelise metsakonverentsi „Mets ja kultuur“ organiseerimistoimkonna esimees.
Osalenud Int J Biometeorology ja Int J Climatology artiklite retsenseerimisel.
Osalenud Narva (2000-2001) ja Tallinna (2002-2004) planeeringu töögruppide tegevuses
Keskkonnaministeeriumi metsanduse asjatundjate komisjoni liige alates 1996. aastast.
12.Juhendamisel kaitstud
väitekirjad

Hando Hain, MSc, 2005, juh. Rein Ahas. Social, ecological and economic impacts of forest certification: case study of FSC certified Estonian State Forest Management Center. Tartu

Siiri Silm, MSc, 2005, juh. Rein Ahas. Tallinna linnaruumi funktsioonide ruumiline ja ajaline jaotus kesklinnas: vanalinna ja südalinna võrdlus. Tartu

Vello Palm, MSc, 2003, juh. Rein Ahas. Ihtüofenoloogiliste faaside seosed veekogude sesoonsete hüdroloogiliste muutustega. TÜ

Anto aasa, MSc, 2002, juh. Rein Ahas. Tendentsid Kesk- ja Ida-Euroopa taimefenoloogilistes kalendrites. TÜ

Taavi Pae, MSc, 2002, juh. Rein Ahas, Erki Tammiksaar. Eesti kalmistute paiknemine ja kujunemise seaduspärasused. TÜ

13.Teadustöö põhisuunad Fenoloogia, aastaajad ja kliimamuutused
Välja on töötatud aastaajaliste nähtuste analüüsimise metoodika. Analüüsitud on aastaajaliste nähtuste ajalis-ruumilist varieeruvust Eestis ja Euroopas ning kliimamuutuste mõju neile. Eesti kevadpoolaasta ilmastik ning fenoloogia on viimasel sajandil oluliselt muutunud, see mõjutab ka ühiskonda.

Ühiskondlike nähtuste sesoonsus ja kliimamuutustega kohanemine
Aastaajaliste nähtuste analüüsimise metoodika on kohaldatud inimeste käitumise ja ühiksondlike nähtuste uurimiseks. Analüüsitud on sünnikuupäevade ja alkoholi tarbimise sesoonsust ja võimalikke mõjureid. Eestlaste sünnikuupäevadel on selge aastaajaline rütm, mis on viimase sajandi jooksul seoses urbaniseerumisega muutunud. Sündide (viljastumiste) sesoonsuse otsesed põhjused on endiselt avastamata. Aastaajad mõjutavad oluliselt ka inimeste käitumist, seda aspekti on ühiskondliku elu planeerimisel ja juhtimisel vähe arvestatud.

Metsandus ja ressursikasutuse reguleerimine
Kirjeldatud on metsade sotsiaal-majanduslikku ja kultuurilist tähendust ühiskonnale. Analüüsitud on metspoliitika mõju metsade ja liikide seisundile ning säästva metsamajanduse planeerimise aspekte. Üleminekuaastate liberaalne metsapoliitika on seadnud ohtu paljude liikide säilimise ja stabiilse tööhõive. Liiga liberaalne ressursikasutuse poliitika on muutnud metsanduse läbipaistmatuks, mis on omakorda sünnitanud varimetsanduse. Hinnanguliselt toodetakse üle poole Eesti puidust seadusi, keskkonda või ühiskonna huve kahjustades. Metsanduse sertifitseerimine on üks võimalus probleemide reguleerimiseks, kui riik ei suuda probleeme lahendada. 40% Eesti metsadest on sertifitseeritud FSC skeemist lähtuvalt.

Sotsiaal-majanduslike muutuste hindamine keskkonna planeerimisel
Eesti planeeringutes on rakendatud keskkonnaplaneerimise ja mõjude hindamise metoodikat. Koostatud on metoodika inimeste ajalis-ruumilise käitumise uurimiseks mobiilpositsioneerimise abil. Täna on see alternatiivne meetod liikumise uurimisel ja küsitlemisel, tulevikus võib sellest kujuneda võimas ühiskonna planeerimise ja juhtimise instrument. Meetodi oluline probleem on turvalisus ja privaatsus, loomulikult saab inimesi positsioneerida vaid nende nõusolekul. Analüüsitud on asutuse ja inimeste liikumismustrite muutumist Eestis. Osaletud on planeeringute koostamisel Jõgeva maakonnas, Tartus, Narvas ja Tallinnas.
14.Jooksvad grandid 2004 Tallinna SAPA – Kesklinna planeeringu analüüs, ehitusmääruse koostamine ja monitooringumehhanismi väljatöötamine.
2004 KIK – Ehitiste rajatiste ja nende projektide keskkonnasõbralikkuse hindamise mõõdiku rakendamine II etapp.
2004 ETF grant 5836 - Fenoloogiliste trendide seosed keskkonnategurite muutustega Eesti näitel
15.Teaduspublikatsioonid

Ahas, R., Aasa A., Silm, S., Roosaare, J. 2005. Seasonality of natural and social factors in Estonia. Landscape Research. Landscape Research. 30(2): 173 – 191.

Ahas, R., Hain, H., Mardiste P. 2004. Social, economic and ecological effects of forest certification in Estonia. In Confronting Sustainability: Forest Certification in Developing and Transitioning Countries, edited by B. Cashore, F. Gale, E. Meidinger and D. Newsom. New Haven, CT: Yale School of Forestry and Environmental Studies Press.

Ahas, R., Mark, Ü. 2005. Location based services – new challenges for planning and public administration? Futures, 37(6): 547-561.

Hain, H., Ahas, R. 2005. The structure and estimated extent of illegal forestry in Estonia. International Forest Review 7(2): 90-100.

Silm, S., Ahas, R. 2005. Seasonality of Alcohol Related Phenomena in Estonia. Int. J. Biometeorology. 49(4):215-223.

Aasa, A., Jaagus, J., Ahas, R. 2004. The influence of atmospheric circulation on plant phenological phases in Central and Eastern Europe. Int. J. Climatology, 24 (12): 1551-1564

Ahas, R., Aasa, A. 2004. Attribution of Estonian phyto-, ornitho- and ichtyophenological trends with parameters of changing climate. 16th Conference on Biometeorology and Aerobiology, 23-27.08.2004, Vancouver, pp 87-94.

Ahas, R., Mark, Ü., Kalle, H. 2004. Sotsiaalne positsioneerimine. Akadeemia, 16(3), lk. 508–529.

Ahas, R., Aasa, A. 2003. Developing comparative phenological calendars. In M.D. Schwartz, Ed. Phenology: An Integrative Environmental Science, 39, Kluwer Academic Publishers, Dordrecht, pp. 301–318.

Ahas, R., Aasa, A. 2003. Fenoloogiliste kalendrite koostamise metoodika Kesk- ja Ida-Euroopa andmete näitel. Jaagus, J. toim. Uurimusi Eesti kliimast. Publicationes Instituti Geographici Universitatis Tartuensis, 93, lk 268–287.

Ahas, R., Aasa, A. 2003. Sunspot cycle and phenology. In: Van Vliet, A.J.H et al Eds. EPN conference "Challenging Times" Towards an operational system for monitoring, modeling, and forecasting of phenological changes and their socio-economic impacts. 31 March and 1–2 April, Wageningen, Abstracts, pp. 35.

Ahas, R., Aasa, A., Palm, V. 2003. Fenoloogiliste faaside alguse muutused Eestis viimasel poolsajandil. Frey, T. toim. Eesti IX Ökoloogiakonverentsi lühiartiklid. 11.–12. aprill, Tartu, lk. 8–19.

Jaagus, J., Truu, J., Ahas, R., Aasa, A. 2003. Spatial and temporal variability of climatic seasons on the East European Plain in relation to large-scale atmospheric circulation. Clim. Res., 23(2), pp. 111–129.

Menzel, A., Jakobi, G., Ahas, R., Scheifinger, H., Estrella, N. 2003. Variations of the climatological growing season (1951–2000) in Germany compared with other countries. Int. J. Climatology, 23, pp. 793–812.

R. Ahas, Ü. Mark, H. Kalle, 2003.Meetod inimeste grupi liikmete omavaheliseks asukoha määramiseks personaalse kommunikatsioonivahendi asukohainfo põhjal Rahvusvaheline patenditaotlus P200300163, 22.04.2003, Tallinn

R. Ahas, Ü. Mark, H. Kalle, 2003. Sotsiaalse positsioneerimise meetod personaalsete kommunikatsioonivahendite abil Rahvusvaheline patenditaotlus P200200481 9.05.2003, Tallinn

Ahas, R. 2002. Birth-Phenology of Estonians and Study of Climate. Abstracts of conference "The times they are a changing"; Climate change, phenological responses and their consequences for biodiversity, agriculture, forestry, and human health, 5–7 December 2001, Wageningen, Netherlands.

Ahas, R., Aasa, A., Menzel, A., Fedotova, V.G., Scheifinger, H. 2002. Changes in European spring phenology. Int. J. Climatology, 22, pp. 1727–1738.

Ahas, R., Jaagus, J., Aasa, A. 2002. Changes in spring phenology in Europe and large-scale atmospheric circulation. Abstracts of Fourth European Conference on Applied Climatology, ECAC 2002, 12–15.11.2002, Brussels.

Ahas, R., Jaagus, J., Aasa, A. 2002. Spatial and temporal variability of spring phenology in Europe in relation to large-scale atmospheric circulation. In Book of Extended Abstracts: 15th Conference on Biometeorology and Aerobiology Joint with 16th International Congress on Biometeorology of the International Society of Biometeorology (ISB), 28 October–1 November 2002, Kansas City, Section 15C.

Scheifinger, H., Menzel, A., Koch, E., Peter, C., Ahas, R. 2002. Atmospheric mechanisms governing the spatial and temporal variability of phenological phases in central Europe. Int. J. Climatology, 22, pp. 1739–1755.

Ahas, R. 2001. Eesti taimefenoloogiline kalender. In: R. Ahas, Ed. Eesti looduse kalender. Publicationes Instituti Geographici Universitatis Tartuensis, 90, pp. 82–106.

Ahas, R., Aasa, A. 2001. Impact of landscape features on spring phenological phases of maple and bird cherry in Estonia. Landscape Ecology, 16(5), pp. 437–451.

Ahas, R., Albre, N., Mark, Ü., Jauhiainen, J. 2001. Dispercity – urban life in a green setting, or a new development approach for Estonian rural peripheries. In Mander, Ü. et al Eds. IALE European Conference Proceedings 2001. Development of European Landscapes, Publicationes Instituti Geographici Universitatis Tartuensis 92(2), pp. 592–597.

Ahas, R., Koduvere, E., Mark, Ü. 2001. Can we improve a Soviet city: Strategic Environment Assessment of the Master Plan for Narva in Estonia. In Fröhlich, C. et al. Eds. European Regional Development Issues in the New Millenium and Their Impact on Economic Policy; 41st Congress of the European Regional Science Association, Zagreb, Croatia, from 29th August to 1st September 2001; CD; ISBN: 953-157-419-7, Paper No. 139, 8 p.

Ahas, R., Mark, Ü., Albre, N., Link, L. 2001. Dispercity - new development approach for Estonian rural peripheries. In Fröhlich, C. et al. Eds. Papers of European Regional Development Issues in the New Millenium and Their Impact on Economic Policy; 41st Congress of the European Regional Science Association, Zagreb, Croatia, from 29th August to 1st September 2001; CD; ISBN: 953-157-419-7, Paper No. 65, 13 p.

Ahas, R. (toim.) 2001. Eesti looduse kalender. Publicationes Instituti Geographici Universitatis Tartuensis, 90, 206 lk.

Ahas, R., Aasa, A. 2000. Analysis of extreme years of the Estonian agri–phenological calendar. Proceedings of ECAC 2000; 3rd European Conference on Applied Climatology; Tools for the environment and man of the year 2000, Pisa, Italy, C.N.R.-I.A.T.A.; F.M.A., ISBN 88-900502-0-9, 6 p.

Ahas, R., Jaagus, J., Aasa, A. 2000. The phenological calendar of Estonia and its correlation with mean air temperature. Int. J. Biometeorology, 44(4), pp. 159–166.

Jaagus, J., Ahas, R. 2000. Space-time variations of climatic seasons and their correlation with the phenological development of nature in Estonia. Climate Research, 15(3), pp. 207–219.

Ahas, R. 1999. Eestlaste sündivuse sesoonne rütm 20. sajandil. Publicationes Instituti Geographici Universitatis Tartuensis, 85, lk. 165-170.

Ahas, R. 1999. Long-term phyto-, ornitho- and ichthyophenological time-series analyses in Estonia. Int. J. Biometeorology, 42, pp. 119–123.

Ahas, R. 1999. Underlying Causes of Deforestation and Forest Degradation in Estonia: A Local Level Case Study in Põlva County. Foley, M.E., Moussa, J., Verlome, H.J.H. Eds. Addressing the Underlying Causes of Deforestation and Forest Degradation. Washington DC, Biodiversity Action Network, pp. 73–74.

Ahas, R., Elts J., Kartau, K., Puura, T. 1999. The white-backed woodpecker Dendrocopus leucotos and the protection of its habitats in Estonia: Assessment of habitats and protection measures. Estonian Green Movement, Tartu, 47 p.

Ahas, R., Jaagus, J., Aasa, A. 1999. The Estonian phenological calendar and its sensitivity to climate change. Proceedings of the 15th International Congress of Biometeorology and International Conference on Urban Climatology, Sydney, Australia, 8–12 November 1999. Eds. de Dear, R.J., Potter, J.G. Sydney, Macquarie University, ISBN 1864085436, CD.

Ahas, R., Puura, T. 1999. The white-backed woodpecker (Dendrocopus leucotos) and the protection of its habitats in Estonia: Assessment of habitats and protection measures. Estonian Green Movement. Tartu, 47 p.

Ahas, R., Puura, T., Janssen, A., Peter, E. 1999. Boreal Forests of the World IV: Integrating Cultural Values into Local and Global Forest Protection. Proceedings of the 4th Biannual Conference of the Taiga Rescue Network, 5–10 October 1998, Tartu, Estonia. Estonian Green Movement. Tartu, 102 p.

Ahas, R. 1998. Climate change impact on seasonal cycles in nature: spatial and temporal variability of the phenological time-series in Estonia. Kallaste, T., Kuldna, P. Eds. Climate change studies in Estonia. Tallinn, Stockholm Environment Institute, Tallinn Centre, 21–26.

Ahas, R., Tarand, A., Meitern, H. 1998. Temporal variability of the phenological time series in Estonia. Country Case Study on Climate Change Impacts and Adaptation Assesments in the Republic of Estonia. Report to the UNEP/GEF; Project No.: GF/2200-96-45. (Eds. Tarand, A., Kallaste, T.). Tallinn, Stockholm Environment Institute Tallinn Centre, pp. 28-30.

Jaagus, J., Ahas, R. 1998. Spatial differences in climatic seasons in Estonia and their influence on phenological development of nature. 2nd European Conference on Applied Climatology 19–23 October 1998, Vienna, Austria. Österreichische Beiträge zu Meteorologie und Geophysik, 19. Wien, Zentralanstalt für Meteorologie und Geodynamik, ISSN 1016-6254, CD.

Ahas, R. 1997. The seasonal dynamics of Estonian landscapes: spatial and temporal variability of early-spring blossoming dates. Biometeorology, 14, Part 2. Hočevar, A., Repinček, Z., Kajfeţ-Bogataj, L. Eds Proceedings of the 14th International Congress of Biometeorology, 1–8 September 1996, Ljubljana, Slovenia, pp. 220–225.

Ahas, R., Relve, H. 1997. Mets ja kultuur. Eesti Roheline Liikumine. Tartu, 70 lk.

Ahas, R., Larson, B., 1996. Sustainable Market-Based Forestry and the Financial Benefits of Forest Management in Estonia: A Local-Level Case Study. Harvard Institute for International Development, Environment and Discussion Paper, No 12.

viimati muudetud: 26.09.2005

Curriculum Vitae (CV)
1.First Name Rein
2.Surname Ahas
3.Institution Institute of Geography University of Tartu
4.Position senior researcher
5.Date of birth 10.12.1966 (day.month.year)
6.Education Luunja Secondary School 1984
Diploma in natural geography and environmental studies (individual program), University of Tartu, 1991
MSc in physical geography, University of Tartu, 1994
PhD in physical geography, University of Tartu, 1999
7.Research and
professional experience
Institute of Geography, University of Tartu, research positions 1994–1998
Institute of Geography, University of Tartu, lecturer 1998–2000
Institute of Zoology and Hydrobiology, University of Tartu, post doctoral research, 2000–2002
Institute of Geography, University of Tartu, senior researcher, since 2002
Estonian Green Movement – FoE, board member and forestry coordinator (part-time), 1994–2003
8.Academic degree PhD
9.Dates and sites of
earning the degrees
University of Tartu 1999
10.Honours/awards
11.Research-administrative
experience
EU RD program COST 725 management group member since 2004
Participation in Intergovernmental Panel of Climate Change (IPCC) IV report planning seminars since 2003
FP5RTD Phenological Observations and Satellite Data (NDVI) – Trends in the Vegetation Cycle in Europe (POSITIVE) EVK2-1999-00109, contractor 1999-2002
Chair of organising committee of the 4th Biannual Conference of Taiga Rescue Network: Boreal Forests of the World IV: Integrating Cultural Values into Local and Global Forest Protection, October 1998, Tartu, Estonia.
Referee of submitted papers in Int J Biometeorology and Int J Climatology .
Participation in Tartu 1999, Narva (2000-2001) and Tallinn (2002-2004) master plan working group.
Member of forestry expert commission of Ministry of Environment in Estonia since 1996.
12.Supervised dissertations

Hando Hain, MSc, 2005, superv. Rein Ahas. Social, ecological and economic impacts of forest certification: case study of FSC certified Estonian State Forest Management Center. Tartu

Siiri Silm, MSc, 2005, superv. Rein Ahas. Tallinna linnaruumi funktsioonide ruumiline ja ajaline jaotus kesklinnas: vanalinna ja südalinna võrdlus. Tartu

Vello Palm, MSc, 2003, superv. Rein Ahas. Ihtüofenoloogiliste faaside seosed veekogude sesoonsete hüdroloogiliste muutustega. TÜ

Anto aasa, MSc, 2002, superv. Rein Ahas. Tendentsid Kesk- ja Ida-Euroopa taimefenoloogilistes kalendrites. TÜ

Taavi Pae, MSc, 2002, superv. Rein Ahas, Erki Tammiksaar. Eesti kalmistute paiknemine ja kujunemise seaduspärasused. TÜ

13.Current research program Phenology, seasonality and climate change Working group leader, data analysis, writing and presentations. Working group developed methodology for analysing phenological time series and phenological calendars. Applying those methods, the space-time variability of phenological time series has been studied in Estonia and Europe. The impacts of climate change on phenological phases and seasonal indicators have been studied. There have been remarkable shifts in the timing of seasonal events during the spring half of year.

Seasonality of human activities and adaptation with change impacts
The methodology of analysing seasonal and phenological events was applied to the study of human and social behaviour. The seasonality of Estonian birthdays, alcohol consumption and different socio-economic indicators was analysed. Birth dates and alcohol consumption show a clear seasonal variation. The seasonal rhythm of births has been changing during the 20th century, which is shown to be linked with urbanisation and industrialisation in Estonia. Previously, there had been no commonly accepted explanations for the causes of seasonality in birth curves. Alcohol consumption also shows a clear seasonal pattern, but this indicator is more related to social phenomena such as holidays and vacations. Beer consumption reaches a peak during the summer period because the number of people drinking beer increases during summer holidays and vacations. Seasonality has a great impact on human activities in temperate zones but until today this information has not been much used in planning and public administration.

Natural resource use policy and forestry
The socio-economic and cultural aspects of forests and forestry products are studied. This comprises an analysis of Estonian forest policy and legislation and its ecological and social impacts at both local and national level. The Estonian forest policy was formulated too liberally in 1996 and this resulted in unlimited and uncontrolled felling. Since 1999 Estonia has been harvesting more timber (more than 12 mil. solid meters) than there is annual growth (10 mil. solid meters). This is endangering ecosystems and species and social security in rural areas. The liberal forest policy and legislation made forest use non-transparent and timber untraceable. This has created a huge sector of illegal forestry which benefits from tax deceptions, overharvesting, environmental damage and forest theft. Today, more than 50% of the timber produced in Estonia is associated with schemes of shadow forestry. One alternative to weak state policy is voluntary initiatives such as FSC certification. 40% of Estonian forests are certified by internationally trusted FSC.

Environmental planning and social impact assessment
The existing environmental planning and impact assessment methodology has been developed according to Estonian legislation and practices. In this study, various cities and regions have been analysed in order to compose better planning options. As a result of this a new methodology for social impact assessement has been developed, since this topic is weakest in Estonia. The social positioning method (SPM) studies social flows in time and space by analysing the location coordinates of mobile phones and the social identifiers of the people carrying them. Taking into account the large proliferation of mobile phones in the world, this would be a database of very high potential. SPM data has three important aspects: 1) in comparison to earlier studies on space-time movement, both the quantity and the precision of this data is considerably higher; 2) social positioning data indicates the actual location and movement of people; 3) the method enables working in real-time. The important issue of social positioning is protection of privacy and personal data. As in any poll or survey it is allowed to question, monitor and research only those people who specifically consent to it. The first 2 SPM pilot studies have been made for Tallinn master plan.
14.Current grant funding 2004 Tallinn SAPA – Analysis and drafting planning and buiding regulation for city centre.
2004 State Environmental Investment Centre (KIK) - Toolkit and management system for sustainable planning and evaluation of built environment II step.
2004 Estonian Science Foundation grant 5836 - Attribution of phenological changes: Estonian case study
15.List of most important publications

Ahas, R., Aasa A., Silm, S., Roosaare, J. 2005. Seasonality of natural and social factors in Estonia. Landscape Research. Landscape Research. 30(2): 173 – 191.

Ahas, R., Hain, H., Mardiste P. 2004. Social, economic and ecological effects of forest certification in Estonia. In Confronting Sustainability: Forest Certification in Developing and Transitioning Countries, edited by B. Cashore, F. Gale, E. Meidinger and D. Newsom. New Haven, CT: Yale School of Forestry and Environmental Studies Press.

Ahas, R., Mark, Ü. 2005. Location based services – new challenges for planning and public administration? Futures, 37(6): 547-561.

Hain, H., Ahas, R. 2005. The structure and estimated extent of illegal forestry in Estonia. International Forest Review 7(2): 90-100.

Silm, S., Ahas, R. 2005. Seasonality of Alcohol Related Phenomena in Estonia. Int. J. Biometeorology. 49(4):215-223.

Aasa, A., Jaagus, J., Ahas, R. 2004. The influence of atmospheric circulation on plant phenological phases in Central and Eastern Europe. Int. J. Climatology, 24 (12): 1551-1564

Ahas, R., Aasa, A. 2004. Attribution of Estonian phyto-, ornitho- and ichtyophenological trends with parameters of changing climate. 16th Conference on Biometeorology and Aerobiology, 23-27.08.2004, Vancouver, pp 87-94.

Ahas, R., Mark, Ü., Kalle, H. 2004. Sotsiaalne positsioneerimine. Akadeemia, 16(3), lk. 508–529.

Ahas, R., Aasa, A. 2003. Developing comparative phenological calendars. In M.D. Schwartz, Ed. Phenology: An Integrative Environmental Science, 39, Kluwer Academic Publishers, Dordrecht, pp. 301–318.

Ahas, R., Aasa, A. 2003. Fenoloogiliste kalendrite koostamise metoodika Kesk- ja Ida-Euroopa andmete näitel. Jaagus, J. toim. Uurimusi Eesti kliimast. Publicationes Instituti Geographici Universitatis Tartuensis, 93, lk 268–287.

Ahas, R., Aasa, A. 2003. Sunspot cycle and phenology. In: Van Vliet, A.J.H et al Eds. EPN conference "Challenging Times" Towards an operational system for monitoring, modeling, and forecasting of phenological changes and their socio-economic impacts. 31 March and 1–2 April, Wageningen, Abstracts, pp. 35.

Ahas, R., Aasa, A., Palm, V. 2003. Fenoloogiliste faaside alguse muutused Eestis viimasel poolsajandil. Frey, T. toim. Eesti IX Ökoloogiakonverentsi lühiartiklid. 11.–12. aprill, Tartu, lk. 8–19.

Jaagus, J., Truu, J., Ahas, R., Aasa, A. 2003. Spatial and temporal variability of climatic seasons on the East European Plain in relation to large-scale atmospheric circulation. Clim. Res., 23(2), pp. 111–129.

Menzel, A., Jakobi, G., Ahas, R., Scheifinger, H., Estrella, N. 2003. Variations of the climatological growing season (1951–2000) in Germany compared with other countries. Int. J. Climatology, 23, pp. 793–812.

R. Ahas, Ü. Mark, H. Kalle, 2003.Meetod inimeste grupi liikmete omavaheliseks asukoha määramiseks personaalse kommunikatsioonivahendi asukohainfo põhjal Rahvusvaheline patenditaotlus P200300163, 22.04.2003, Tallinn

R. Ahas, Ü. Mark, H. Kalle, 2003. Sotsiaalse positsioneerimise meetod personaalsete kommunikatsioonivahendite abil Rahvusvaheline patenditaotlus P200200481 9.05.2003, Tallinn

Ahas, R. 2002. Birth-Phenology of Estonians and Study of Climate. Abstracts of conference "The times they are a changing"; Climate change, phenological responses and their consequences for biodiversity, agriculture, forestry, and human health, 5–7 December 2001, Wageningen, Netherlands.

Ahas, R., Aasa, A., Menzel, A., Fedotova, V.G., Scheifinger, H. 2002. Changes in European spring phenology. Int. J. Climatology, 22, pp. 1727–1738.

Ahas, R., Jaagus, J., Aasa, A. 2002. Changes in spring phenology in Europe and large-scale atmospheric circulation. Abstracts of Fourth European Conference on Applied Climatology, ECAC 2002, 12–15.11.2002, Brussels.

Ahas, R., Jaagus, J., Aasa, A. 2002. Spatial and temporal variability of spring phenology in Europe in relation to large-scale atmospheric circulation. In Book of Extended Abstracts: 15th Conference on Biometeorology and Aerobiology Joint with 16th International Congress on Biometeorology of the International Society of Biometeorology (ISB), 28 October–1 November 2002, Kansas City, Section 15C.

Scheifinger, H., Menzel, A., Koch, E., Peter, C., Ahas, R. 2002. Atmospheric mechanisms governing the spatial and temporal variability of phenological phases in central Europe. Int. J. Climatology, 22, pp. 1739–1755.

Ahas, R. 2001. Eesti taimefenoloogiline kalender. In: R. Ahas, Ed. Eesti looduse kalender. Publicationes Instituti Geographici Universitatis Tartuensis, 90, pp. 82–106.

Ahas, R., Aasa, A. 2001. Impact of landscape features on spring phenological phases of maple and bird cherry in Estonia. Landscape Ecology, 16(5), pp. 437–451.

Ahas, R., Albre, N., Mark, Ü., Jauhiainen, J. 2001. Dispercity – urban life in a green setting, or a new development approach for Estonian rural peripheries. In Mander, Ü. et al Eds. IALE European Conference Proceedings 2001. Development of European Landscapes, Publicationes Instituti Geographici Universitatis Tartuensis 92(2), pp. 592–597.

Ahas, R., Koduvere, E., Mark, Ü. 2001. Can we improve a Soviet city: Strategic Environment Assessment of the Master Plan for Narva in Estonia. In Fröhlich, C. et al. Eds. European Regional Development Issues in the New Millenium and Their Impact on Economic Policy; 41st Congress of the European Regional Science Association, Zagreb, Croatia, from 29th August to 1st September 2001; CD; ISBN: 953-157-419-7, Paper No. 139, 8 p.

Ahas, R., Mark, Ü., Albre, N., Link, L. 2001. Dispercity - new development approach for Estonian rural peripheries. In Fröhlich, C. et al. Eds. Papers of European Regional Development Issues in the New Millenium and Their Impact on Economic Policy; 41st Congress of the European Regional Science Association, Zagreb, Croatia, from 29th August to 1st September 2001; CD; ISBN: 953-157-419-7, Paper No. 65, 13 p.

Ahas, R. (toim.) 2001. Eesti looduse kalender. Publicationes Instituti Geographici Universitatis Tartuensis, 90, 206 lk.

Ahas, R., Aasa, A. 2000. Analysis of extreme years of the Estonian agri–phenological calendar. Proceedings of ECAC 2000; 3rd European Conference on Applied Climatology; Tools for the environment and man of the year 2000, Pisa, Italy, C.N.R.-I.A.T.A.; F.M.A., ISBN 88-900502-0-9, 6 p.

Ahas, R., Jaagus, J., Aasa, A. 2000. The phenological calendar of Estonia and its correlation with mean air temperature. Int. J. Biometeorology, 44(4), pp. 159–166.

Jaagus, J., Ahas, R. 2000. Space-time variations of climatic seasons and their correlation with the phenological development of nature in Estonia. Climate Research, 15(3), pp. 207–219.

Ahas, R. 1999. Eestlaste sündivuse sesoonne rütm 20. sajandil. Publicationes Instituti Geographici Universitatis Tartuensis, 85, lk. 165-170.

Ahas, R. 1999. Long-term phyto-, ornitho- and ichthyophenological time-series analyses in Estonia. Int. J. Biometeorology, 42, pp. 119–123.

Ahas, R. 1999. Underlying Causes of Deforestation and Forest Degradation in Estonia: A Local Level Case Study in Põlva County. Foley, M.E., Moussa, J., Verlome, H.J.H. Eds. Addressing the Underlying Causes of Deforestation and Forest Degradation. Washington DC, Biodiversity Action Network, pp. 73–74.

Ahas, R., Elts J., Kartau, K., Puura, T. 1999. The white-backed woodpecker Dendrocopus leucotos and the protection of its habitats in Estonia: Assessment of habitats and protection measures. Estonian Green Movement, Tartu, 47 p.

Ahas, R., Jaagus, J., Aasa, A. 1999. The Estonian phenological calendar and its sensitivity to climate change. Proceedings of the 15th International Congress of Biometeorology and International Conference on Urban Climatology, Sydney, Australia, 8–12 November 1999. Eds. de Dear, R.J., Potter, J.G. Sydney, Macquarie University, ISBN 1864085436, CD.

Ahas, R., Puura, T. 1999. The white-backed woodpecker (Dendrocopus leucotos) and the protection of its habitats in Estonia: Assessment of habitats and protection measures. Estonian Green Movement. Tartu, 47 p.

Ahas, R., Puura, T., Janssen, A., Peter, E. 1999. Boreal Forests of the World IV: Integrating Cultural Values into Local and Global Forest Protection. Proceedings of the 4th Biannual Conference of the Taiga Rescue Network, 5–10 October 1998, Tartu, Estonia. Estonian Green Movement. Tartu, 102 p.

Ahas, R. 1998. Climate change impact on seasonal cycles in nature: spatial and temporal variability of the phenological time-series in Estonia. Kallaste, T., Kuldna, P. Eds. Climate change studies in Estonia. Tallinn, Stockholm Environment Institute, Tallinn Centre, 21–26.

Ahas, R., Tarand, A., Meitern, H. 1998. Temporal variability of the phenological time series in Estonia. Country Case Study on Climate Change Impacts and Adaptation Assesments in the Republic of Estonia. Report to the UNEP/GEF; Project No.: GF/2200-96-45. (Eds. Tarand, A., Kallaste, T.). Tallinn, Stockholm Environment Institute Tallinn Centre, pp. 28-30.

Jaagus, J., Ahas, R. 1998. Spatial differences in climatic seasons in Estonia and their influence on phenological development of nature. 2nd European Conference on Applied Climatology 19–23 October 1998, Vienna, Austria. Österreichische Beiträge zu Meteorologie und Geophysik, 19. Wien, Zentralanstalt für Meteorologie und Geodynamik, ISSN 1016-6254, CD.

Ahas, R. 1997. The seasonal dynamics of Estonian landscapes: spatial and temporal variability of early-spring blossoming dates. Biometeorology, 14, Part 2. Hočevar, A., Repinček, Z., Kajfeţ-Bogataj, L. Eds Proceedings of the 14th International Congress of Biometeorology, 1–8 September 1996, Ljubljana, Slovenia, pp. 220–225.

Ahas, R., Relve, H. 1997. Mets ja kultuur. Eesti Roheline Liikumine. Tartu, 70 lk.

Ahas, R., Larson, B., 1996. Sustainable Market-Based Forestry and the Financial Benefits of Forest Management in Estonia: A Local-Level Case Study. Harvard Institute for International Development, Environment and Discussion Paper, No 12.

last updated: 26.09.2005

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