Cluster 2: Physical, Chemical and Earth Sciences (PCE)

02 Physical sciences

0201 Astronomical and space sciences
0202 Atomic, molecular, nuclear, particle and plasma physics
0203 Classical physics
0204 Condensed matter physics
0205 Optical physics
0206 Quantum physics
0299 Other physical sciences

03 Chemical sciences

0301 Analytical chemistry
0302 Inorganic chemistry
0303 Macromolecular and materials chemistry
0304 Medicinal and biomolecular chemistry
0305 Organic chemistry
0306 Physical chemistry (incl. structural)
0307 Theoretical and computational chemistry
0399 Other chemical sciences

04 Earth sciences

0401 Atmospheric sciences
0402 Geochemistry
0403 Geology
0404 Geophysics
0405 Oceanography
0406 Physical geography and environmental geoscience
0499 Other earth sciences