Pure sciences and exact or mathematical sciences, including astronomy, mechanics and mathematical physics.
| Acronym |
Sense |
Language |
Topics |
| PDEDMA |
Plan Départemental d'Élimination des Déchets Ménagers et Assimilés |
In French |
→ Environmental protection |
| PDF |
Probability Density Function |
In English |
→ Mathematics |
| PDO |
Publications of the Dominion Observatory Ottawa |
In English |
→ Serial publications, periodicals → Astronomy |
| PDO |
Pacific Decadal Oscillation |
In English |
→ Meteorology, climatology |
| PDP |
Postinsertion Deorbit Preparation |
In English |
→ Astronomy → Astronautics |
| PDreO |
Publications of the Dresden Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PE |
Polyethylene |
In English |
→ Plastic industry → Chemicals → Chemistry |
| PE |
Plasma Effects |
In English |
→ Plasma physics |
| PECT |
Plan Énergie Climat Territorial |
In French |
→ Regional administration → Energy economics → Meteorology, climatology → Environmental protection |
| PEE |
Plan Environnement Entreprise |
In French |
→ Environmental protection |
| PEEI |
Physics and Evolution of the Earth's Interior |
In English |
→ Serial publications, periodicals → Geophysics |
| PEFPN |
Physica Energiae Fortis et Physica Nuclearis |
In Latin |
→ Serial publications, periodicals → Nuclear, atomic, and molecular physics |
| PEG |
Poly-Ethylène Glycol |
In French |
→ Chemistry → Biochemistry, biophysics |
| PEMS |
Proceedings of the Edinburgh Mathematical Society |
In English |
→ Serial publications, periodicals → Mathematics |
| PEPI |
Physics of the Earth and Planetary Interiors |
In English |
→ Serial publications, periodicals → Geophysics → Planets and satellites |
| PerCo |
Perkins Observatory Contributions |
In English |
→ Serial publications, periodicals → Astronomy |
| PESSL |
Parallel Engineering and Scientific Subroutine Library |
In English |
→ Programming languages → Engineering, technology |
| PETDB |
Petrological Database of the Ocean Floor |
In English |
→ Petrology |
| PETE |
Polyethylene Terephthalate |
In English |
→ Plastic industry → Chemicals → Chemistry |
| PETHA |
Programme Ecorégional pour les Tropiques Humides et Subhumides de l'Afrique Subsaharienne
= EPHTA | Ecoregional Programme for Humid and Subhumid Tropics of Subsaharan Africa | In English
|
In French |
→ 5023 → Africa |
| PETN |
Petaerythrite Tetranitrate |
In English |
→ Chemistry |
| PF&CO |
Publications of the Flower and Cook Astronomical Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PFAO |
Publications of the Flower Astronomical Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PFGE |
Pulsed-Field Gel Electroporesis |
In English |
→ Biological sciences |
| PGC |
Primordial Germ Cell |
In English |
→ 5763 |
| PGCD |
Plus Grand Commun Diviseur |
In French |
→ Number theory |
| PGD |
Preimplantation Genetic Diagnosis |
In English |
→ Genetics → Diagnostics → Reproductive biology |
| PGLO |
Publications of the Goethe Link Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PGooO |
Publications of the Goodsell Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PGR |
Polimerazinė Grandininė Reakcija
= PCR | Polymerase Chain Reaction | In English
= ACP | Amplification en Chaîne par Polymérase | In French
= TAN | Test d'amplification des Acides Nucléiques | In French
= RCP | Reação em Cadeia da Polimerase | In Portuguese
= ПЦР | Полимера́зная Цепна́я Реа́кция | In Russian
= PĈR | Polimeraza Ĉen-Reakcio | In Esperanto
= PZR | Polimeraz Zəncir Reaksiyası | In Azerbaijani
= ՊՇՌ | Պոլիմերազային շղթայական ռեակցիան | In Armenian
= ПГУ | Полимеразын Гинжин Урвал | In Mongolian
= ПЛР | Полімеразна Ланцюгова Реакція | In Ukrainian
|
In Lithuanian |
→ Biotechnology → Genetics → Enzymes |
| PHA |
Physics and Astronomy |
In English |
→ Astronomy → Physics |
| PhAco |
Physical Acoustics |
In English |
→ Serial publications, periodicals → Acoustics |
| PhApp |
Physics and its Applications |
In English |
→ Serial publications, periodicals → Physics |
| PhASp |
Physics and Astrophysics from Spacelab |
In English |
→ Serial publications, periodicals → Physics → Astronomy → Astronautics |
| PHB |
Polyhydroxybutyrate |
In French |
→ Chemistry → Chemicals |
| PhB |
Physics Bulletin |
In English |
→ Serial publications, periodicals → Physics |
| PhBio |
Physical Biology |
In English |
→ Serial publications, periodicals → Biochemistry, biophysics |
| PhChE |
Physics and Chemistry of Earth |
In English |
→ Serial publications, periodicals → Geophysics → Geochemistry |
| PhChH |
PhysicoChemical Hydrodynamics |
In English |
→ Serial publications, periodicals → Physics |
| PhFl |
Physics of Fluids |
In English |
→ Serial publications, periodicals → Physics |
| PhL |
Physics Letters |
In English |
→ Serial publications, periodicals → Physics |
| PhLF |
Physics Laser Fusion |
In English |
→ Serial publications, periodicals → Electricity, magnetism, electromagnetism → Nuclear, atomic, and molecular physics |
| PhLRv |
Physics of Life Reviews |
In English |
→ Serial publications, periodicals → Physics → Biological sciences |
| PHP |
Planetary Horizontal Platform |
In English |
→ Astronomy → Astronautics |
| PhP |
Physics in Perspective |
In English |
→ Serial publications, periodicals → Physics |
| PhPl |
Physics of Plasmas |
In English |
→ Serial publications, periodicals → Plasma physics |
| PhQE |
Physics of Quantum Electronics |
In English |
→ Serial publications, periodicals → Nuclear, atomic, and molecular physics → Quantum mechanics |
| PhR |
Physics Reports |
In English |
→ Serial publications, periodicals → Physics |
| PhRv |
Physical Review |
In English |
→ Serial publications, periodicals → Physics |
| PhRvL |
Physical Review Letters |
In English |
→ Serial publications, periodicals → Physics |
| PhSS |
Physics of the Solid State |
In English |
→ Serial publications, periodicals → Physics |
| PhT |
Physics Today |
In English |
→ Serial publications, periodicals → Physics |
| PhTea |
The Physics Teacher |
In English |
→ Serial publications, periodicals → Education → Physics |
| PhTec |
Physics in Technology |
In English |
→ Serial publications, periodicals → Physics → Engineering, technology |
| PhuZ |
Physik in unserer Zeit |
In German |
→ Serial publications, periodicals → Physics |
| PhyCP |
Physiological Chemistry and Physics |
In English |
→ Serial publications, periodicals → Biochemistry, biophysics → Physiology |
| PhyEd |
Physics Education |
In English |
→ Serial publications, periodicals → Physics |
| PhyEs |
Physics Essays |
In English |
→ Serial publications, periodicals → Physics |
| PhyG |
Physikalische Gesellschaft |
In German |
→ Organizations and associations → Physics |
| PhyGZ |
Physikalische Gesellschaft Zürich |
In German |
→ Organizations and associations → Physics |
| PhyN |
Physics Notes |
In English |
→ Serial publications, periodicals → Physics |
| PhyNr |
Physica Norvegica |
In Latin |
→ Serial publications, periodicals → Physics |
| PhyNY |
Physics New York |
In English |
→ Serial publications, periodicals → Physics → United States |
| PhyR |
Physical Research |
In English |
→ Serial publications, periodicals → Physics |
| PhyS |
Physica Scripta |
In Latin |
→ Serial publications, periodicals → Physics |
| PhyW |
Physics World |
In English |
→ Serial publications, periodicals → Physics |
| PhyZ |
Physikalische Zeitschrift |
In German |
→ Serial publications, periodicals → Physics |
| PIC |
Primate Information Center |
In English |
→ Primates |
| PID |
Proportionnel, Intégrale, Dérivée
= PID | Proportional-Integral-Derivative | In English
|
In French |
→ Mathematics |
| PID |
Proportional-Integral-Derivative
= (look above)
|
In English |
→ Mathematics |
| PIGB |
Programme International Géosphère-Biosphère |
In French |
→ Earth sciences → Biological sciences |
| PIGF |
Placental Growth Factor |
In English |
→ Biochemistry, biophysics |
| PIGP |
Proceedings of the Institute of General Physics |
In English |
→ Serial publications, periodicals → Physics |
| PIstO |
Publications of the Istanbul (University) Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PIXE |
Particle-Induced X-ray Emission |
In English |
→ Radioactivity |
| PIXE |
Proton Induced X-ray Emission |
In English |
→ Radioactivity |
| PKAS |
Publication of the Korean Astronomical Society |
In English |
→ Serial publications, periodicals → Astronomy |
| PKiM |
Pracowni Komet i Meteorów (http://hwww.pkim.org) |
In Polish |
→ Organizations and associations → Interplanetary medium → Poland |
| PKirO |
Publications of the Kirkwood Observatory of Indiana University |
In English |
→ Serial publications, periodicals → Astronomy → United States |
| PKM |
Physik der Kondensiterten Materie |
In German |
→ Serial publications, periodicals → Physics of condensed matter |
| PL |
Programmation Linéaire |
In French |
→ Mathematics |
| Pl&I |
Plasmas and Ions |
In English |
→ Serial publications, periodicals → Plasma physics |
| PLAGL |
Publications de l'Institut d'Astronomie et de Géophysique de Louvain |
In French |
→ Serial publications, periodicals → Astronomy |
| PlAst |
Planetary Astronomy |
In English |
→ Serial publications, periodicals → Astronomy |
| PLATINOM |
PLAte-forme Technologie et INstrumentation Optique et Microondes |
In French |
→ Optics |
| PLawO |
Publications of Laws Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PLDS |
Physics of Low-Dimensional Structures |
In English |
→ Serial publications, periodicals → Physics |
| PLEXdb |
Plant Expression Database (www.plexdb.org) |
In English |
→ Data → Genetics → Botany → Biotechnology |
| PLicO |
Publications of Lick Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PLK |
Polo-like Kinase |
In English |
→ Enzymes |
| PLNE |
Programmation Linéaire en Nombres Entiers |
In French |
→ Mathematics |
| PLoS |
Public Library of Science |
In English |
→ Libraries |
| PlPh |
Plasma Physics |
In English |
→ Serial publications, periodicals → 5539 |
| PlPhR |
Plasma Physics Reports |
In English |
→ Serial publications, periodicals → Plasma physics |
| PlPo |
Plasmas and Polymers |
In English |
→ Serial publications, periodicals → Plasma physics → Chemical technology → Plastic industry |
| PlR |
Planetary Report |
In English |
→ Serial publications, periodicals → Astronomy |
| PLS |
Partial Least Squares |
In English |
→ Mathematics |
| PLTP |
Progress in Low Temperature Physics |
In English |
→ Serial publications, periodicals → Physics |
| PM |
Permanent Magnet |
In English |
→ Magnetism |
| PManO |
Publications of the Manila Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PMatP |
Progress in Mathematical Physics |
In English |
→ Serial publications, periodicals → Mathematics → Physics |
| PMB |
Physics in Medicine and Biology |
In English |
→ Serial publications, periodicals → Physics → Biological sciences → Medicine |
| PMC |
PubMed Central (www.pubmedcentral.nih.gov) |
In English |
→ Libraries → Biological sciences → Medicine |
| PMcCO |
Publications of the Leander McCormick Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PMEL |
Pacific Marine Environmental Laboratory (www.pmel.noaa.gov) |
In English |
→ Research institutes → Marine research, oceanography |
| PMetP |
Progress in Metal Physics |
In English |
→ Serial publications, periodicals → Physics → Metallurgy |
| PMetR |
Papers in Meteorological Research |
In English |
→ Serial publications, periodicals → Meteorology, climatology |
| PMG |
Papers in Meteorology and Geophysics |
In English |
→ Serial publications, periodicals → Meteorology, climatology → Geophysics |
| PMHu |
Periodica Mathematica Hungarica |
In Latin |
→ Serial publications, periodicals → Mathematics → Hungary |
| PMKO |
Plej Malgranda Komuna Oblo
= PPCM | Plus Petit Commun Multiple | In French
= LCM | Least Common Multiple | In English
= KGV | Kleinste Gemene Veelvoud | In Dutch
= MCM | Mínim Comú Múltiple | In Catalan
= NSN | Nejmenší Společný Násobek | In Czech
= ggT | Größter gemeinsamer Teiler | In German
= MCM | Mínimo Común Múltiplo | In Spanish
= PYJ | Pienin yhteinen jaettava | In Finnish
= LKKT | Legkisebb közös többszörös | In Hungarian
= KPK | Kelipatan persekutuan terkecil | In Indonesian
= MCM | Minimo Comune Multiplo | In Italian
= NWW | Najmniejsza wspólna wielokrotność | In Polish
= MMC | Mínimo Múltiplo Comum | In Portuguese
= НОК | Наименьшее общее кратное | In Russian
= NSN | Najmenší spoločný násobok | In Slovak
= НСК | Найменше спільне кратне | In Ukrainian
|
In Esperanto |
→ Number theory |
| PMN |
Physique des Matériaux et Nanostructures |
In French |
→ Physics |
| PMPES |
Proceedings: Mathematical, Physical and Engineering Sciences |
In English |
→ Serial publications, periodicals → Applied sciences, technology |
| PMRC |
Programme Mondial de Recherche sur le Climat |
In French |
→ Meteorology, climatology |
| PMunO |
Publications of the Munich Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PNAE-DD |
Plan National d'Actions pour l'Environnement et le Développement Durable |
In French |
→ 5023 |
| PNAOJ |
Publications of the National Astronomical Observatory of Japan |
In English |
→ Serial publications, periodicals → Astronomy |
| PNAS |
Proceedings of the National Academy of Sciences (www.pnas.org) |
In English |
→ Serial publications, periodicals |
| PNCA |
Programme National de la Chimie Atmosphérique |
In French |
→ Chemistry → Meteorology, climatology |
| PNDDO |
Partial Neglect of Diatomic Differential Overlap |
In English |
→ Nuclear, atomic, and molecular physics |
| PNDO |
Partial Neglect of Differential Overlap |
In English |
→ Nuclear, atomic, and molecular physics |
| PNEAT |
Programme National Efflorescences Alguales Toxiques |
In French |
→ Earth sciences → Biological sciences |
| PNEDC |
Programme National d'Étude du Climat |
In French |
→ Meteorology, climatology |
| PNEM |
Programme National d'Écotoxicologie Marine |
In French |
→ Marine research, oceanography → Biological sciences |
| PNH |
Primate Non Humain |
In French |
→ Primates → Veterinary medicine |
| PNH |
Paroxysmal Nocturnal Hemoglobinuria |
In English |
→ Pathology → Blood and circulatory system → Proteins |
| PNH |
Paroxysmal Nocturnal Haemoglobinuria |
In English |
→ Pathology → Blood and circulatory system → Proteins |
| PNLCC |
Programme National de Lutte contre le Changement Climatique |
In French |
→ Central administration → Meteorology, climatology → Environmental protection |
| PNOC |
Programme National d'Océanographie Côtière |
In French |
→ Marine research, oceanography |
| PNR |
Parc Naturel Régional |
In French |
→ Environmental protection |
| PNSci |
Progress in Natural Science |
In English |
→ Serial publications, periodicals |
| PNTPM |
Physique Nucléaire Théorique et Physique Mathématique |
In French |
→ Mathematics → Physics → Nuclear, atomic, and molecular physics |
| POBeo |
Publications de l'Observatoire Astronomique de Beograd |
In French |
→ Serial publications, periodicals → Astronomy |
| POBor |
Publications de l'Observatoire de l'Université de Bordeaux |
In French |
→ Serial publications, periodicals → Astronomy |
| POClu |
Publicatiile Observatorului Astronomic al Universităţii din Cluj |
In Romanian |
→ Serial publications, periodicals → Astronomy |
| POCM |
Parallel Ocean Climate Model |
In English |
→ Marine research, oceanography |
| POD |
Proper Orthogonal Decomposition |
In English |
→ Mathematics |
| PODAAC |
Physical Oceanography Distributed Active Archive Center (http://podaac.jpl.nasa.gov) |
In English |
→ Data → Marine research, oceanography |
| POEM |
Polar Orbiting Earth Mission |
In English |
→ Astronautics → Astronomy → Earth sciences |
| POGO |
Polar Orbiting Geophysical Observatory |
In English |
→ Geophysics → Astronautics |
| POGS |
Polar-Orbiting Geomagnetic Survey |
In English |
→ Geophysics → Astronautics |
| POHel |
Publications of the Astronomical Observatory Helsinki |
In English |
→ Serial publications, periodicals → Astronomy → Finland |
| PolAt |
Pollution Atmosphérique |
In French |
→ Serial publications, periodicals → 5023 → Meteorology, climatology |
| POLDEN |
Pollution, Déchets, Environnement |
In French |
→ Environmental protection → Environmental technology, water supply, waste management |
| PolPh |
Polymer Physics |
In English |
→ Serial publications, periodicals → Chemistry → Chemical technology → Plastic industry |
| PolRe |
National Institute Polar Research Memoirs |
In English |
→ Serial publications, periodicals → Earth sciences |
| POM |
Princeton Ocean Model |
In English |
→ Marine research, oceanography |
| POM |
Portée Optique Météorologique |
In French |
→ Meteorology, climatology → Optics |
| POMic |
Publications of Michigan Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| POMil |
Pubblicazioni dell'Osservatorio Astronomico di Milano-Merate |
In Italian |
→ Serial publications, periodicals → Astronomy |
| POMin |
Publications of the Astronomical Observatory University of Minnesota |
In English |
→ Serial publications, periodicals → Astronomy → United States |
| POP |
Parallel Ocean Program |
In English |
→ Computer programs → Marine research, oceanography |
| POPad |
Pubblicazioni dell'Osservatorio Astronomico di Padova |
In Italian |
→ Serial publications, periodicals → Astronomy |
| POPal |
Pubblicazioni dell'Osservatorio Astronomico di Palermo |
In Italian |
→ Serial publications, periodicals → Astronomy |
| POPar |
Publication de l'Observatoire de Paris |
In French |
→ Serial publications, periodicals → Astronomy → France |
| PORSEC |
Pan Ocean Remote Sensing Conference |
In English |
→ Congresses → Astronautics → Marine research, oceanography |
| POST |
Plan d'Orientation Scientifique et Technique |
In French |
→ Research policy → Applied sciences, technology |
| POStr |
Publication de l'Observatoire de Strasbourg |
In French |
→ Serial publications, periodicals → Astronomy |
| POTor |
Pubblicazioni Varie Fuori Serie dell'Osservatorio Astronomico di Torino |
In Italian |
→ Serial publications, periodicals → Astronomy |
| POTou |
Publications de l'Observatoire de Toulouse |
In French |
→ Serial publications, periodicals → Astronomy |
| POVRO |
Publications of the Owens Valley Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PP |
Polypropylene |
In English |
→ Plastic industry → Chemicals → Chemistry |
| PPA |
Plan de Protection de l'Atmosphère |
In French |
→ 5023 → Meteorology, climatology |
| PPAR |
Peroxisome Proliferator Activated Receptor |
In English |
→ Biochemistry, biophysics |
| PPAR |
Peroxisome Proliferator-Activated Receptor |
In English |
→ Biochemistry, biophysics |
| PPARC |
Particle Physics and Astronomy Research Councils |
In English |
→ Astronomy → Physics |
| PPARC |
Particle Physics and Astronomy Research Council |
In English |
→ Organizations and associations → Astronomy |
| PPARG |
Peroxisome Proliferator-Activated Receptor Gamma |
In English |
→ Biochemistry, biophysics |
| PPCAS |
Publication of the Pomona College Astronomical Society |
In English |
→ Serial publications, periodicals → Astronomy |
| PPCF |
Plasma Physics and Controlled Fusion (www.iop.org/EJ/journal/PPCF) |
In English |
→ Serial publications, periodicals → Plasma physics → Nuclear technology |
| PPCM |
Plus Petit Commun Multiple
= PMKO, LCM, KGV, MCM, NSN, ggT, PYJ, LKKT, KPK, NWW, MMC, НОК, НСК (look above)
|
In French |
→ Number theory |
| PPcPp |
Progress in Photochemistry and Photophysics |
In English |
→ Serial publications, periodicals → Electromagnetism |
| PPCR |
Pilot Programme on Climate Resilience |
In English |
→ Environmental protection → Meteorology, climatology |
| PPEP |
Plasma Physics and Environmental Perturbation |
In English |
→ Plasma physics |
| PPHTS |
Physical Properties of High Temperature Superconductors |
In English |
→ Serial publications, periodicals → Physics |
| PPMtO |
Publications of the Purple Mountain Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PPN |
Physics of Particles and Nuclei |
In English |
→ Serial publications, periodicals → Nuclear, atomic, and molecular physics |
| PPPL |
Princeton Plasma Physics Laboratory (www.pppl.gov) |
In English |
→ Research institutes → Plasma physics |
| PPS |
Proceedings of the Physical Society |
In English |
→ Serial publications, periodicals → Physics |
| PPS |
Primer Pair Selection |
In English |
→ Software → Biotechnology → Genetics → Biochemistry, biophysics |
| PPSL |
Proceedings of the Physical Society of London |
In English |
→ Serial publications, periodicals → Physics → United Kingdom |
| PQE |
Progress in Quantum Electronics |
In English |
→ Serial publications, periodicals → Quantum mechanics → Electronics |
| PQQ |
Pyrroloquinoline Quinone |
In English |
→ Biochemistry, biophysics |
| PrAeS |
Progress in Aerospace Sciences |
In English |
→ Serial publications, periodicals → Astronomy → Aeronautics, aircraft → Astronautics |
| PrAst |
Practical Astronomy |
In English |
→ Serial publications, periodicals → Astronomy |
| PRCO |
Publications of the Riverview College Observatory |
In English |
→ Serial publications, periodicals → Astronomy |
| PrECS |
Progress in Energy and Combustion Science |
In English |
→ Serial publications, periodicals → Thermodynamics |
| PREDIS |
Plan Régional d'Élimination des Déchets Industriels Spéciaux |
In French |
→ Environmental protection → Environmental technology, water supply, waste management |
| PreR |
Precambrian Research |
In English |
→ Serial publications, periodicals → Palaeontology |
| PREST |
Policy Research in Engineering, Science and Technology |
In English |
→ Politics → Applied sciences, technology |
| PRIMEQUAL |
Programme de Recherche Interorganismes pour une Meilleure Qualité de l'Air à l'échelle Locale |
In French |
→ Threats to the environment → Meteorology, climatology |
| PRISM |
Partnership for Research Infrastructures in Earth System Modeling (http://prism.enes.org) |
In English |
→ Earth sciences |
| PrOce |
Progress in Oceanography |
In English |
→ Serial publications, periodicals → Marine research, oceanography |
| PROE |
Publications of the Royal Observatory of Edinburgh |
In English |
→ Serial publications, periodicals → Astronomy |
| PROFETAS |
Protein Foods, Environment, Technology and Society |
In English |
→ Food technology → Proteins |
| PrPc |
Protéine Prion cellulaire |
In French |
→ Proteins → Neurology → Infectious diseases |
| PrPh |
Progress of Physics |
In English |
→ Serial publications, periodicals → Physics |
| PrPNP |
Progress in Particle and Nuclear Physics |
In English |
→ Serial publications, periodicals → Nuclear, atomic, and molecular physics |
| PRPV |
Programme Régional de Protection des Végétaux |
In French |
→ 5023 → Botany |
| PRQA |
Plan Régional de la Qualité de l'Air |
In French |
→ Environmental protection → Meteorology, climatology |
| PRQA |
Plan Régional pour la Qualité de l'Air |
In French |
→ Regional administration → Environmental protection → Meteorology, climatology |