| Atmospheric greenhouse effect and ionospheric trends HO Upadhyay, KK Mahajan Geophysical Research Letters 25 (17), 3375-3378, 1998 | 86 | 1998 |
| Pioneer Venus Orbiter measurements of solar EUV flux during solar cycles 21 and 22 KK Mahajan, HO Upadhyay, NK Sethi, WR Hoegy, WD Pesnell, LH Brace Solar Electromagnetic Radiation Study for Solar Cycle 22: Proceedings of the …, 1998 | 12 | 1998 |
| Pioneer Venus Orbiter measurements of solar EUV flux during solar cycles 21 and 22 KK Mahajan, HO Upadhyay, NK Sethi, WR Hoegy, WD Pesnell, LH Brace Solar Electromagnetic Radiation Study for Solar Cycle 22: Proceedings of the …, 1998 | 12 | 1998 |
| Cosmic ray ionization of lower Venus atmosphere HO Upadhyay, RP Singh, RN Singh Earth, Moon, and Planets 65, 89-94, 1994 | 9 | 1994 |
| Cosmic ray ionization of lower Venus atmosphere HO Upadhyay, RN Singh Advances in Space Research 15 (4), 99-108, 1995 | 5 | 1995 |
| Dynamical features of Venus ionosphere from comparative study of theoretical and in-situ measured electron density profiles HO Upadhyay, RN Singh Advances in space research 10 (5), 41-44, 1990 | 2 | 1990 |
| A comparative study of electron cooling rates in the Venus ionosphere during magnetized and unmagnetized conditions KK Mahajan, HO Upadhyay, S Ghosh Journal of Geophysical Research: Planets 101 (E4), 9253-9259, 1996 | 1 | 1996 |
| Lightning-generated waves escaping out through plasma holes in the nightside Venus ionosphere RN Singh, HO Upadhyay Proceedings of the Indian Academy of Sciences-Earth and Planetary Sciences …, 1991 | 1 | 1991 |
| Research fellows: A bleak future HO Upadhyay Current Science 75 (11), 1105-1105, 1998 | | 1998 |
| Pioneer Venus Orbiter Measurements of Solar EUV Flux During Solar Cycles 21 and 22 WR Hoegy, HO Upadhyay, KK Mahajan, NK Sethi, WD Pesnell, LH Brace Kluwer Academic Publishers; Springer Science+ Business Media, 1998 | | 1998 |
| Response of Venus ions to solar wind dynamic pressure HO Upadhyay, KK Mahajan Earth, Moon, and Planets 74, 215-222, 1996 | | 1996 |
| IMPACT IONIZATION IN LOWER ATMOSPHERE OF VENUS (VOL 23, PG 230, 1994) HO UPADHYAY, RP SINGH INDIAN JOURNAL OF RADIO & SPACE PHYSICS 24 (2), 106-106, 1995 | | 1995 |
| Andrianov, VA 163 Armand, NA 163 Axford, WI 163 Balaz, J. 159 B Bezard, SW Bougher, T Breus, D Crisp, C de Bergh, M Dubin, R Dubois, ... Exploration of Venus and Mars Atmospheres: Proceedings of the Symposium of …, 1995 | | 1995 |
| Venus and its ionosphere HO Upadhyay, RN Singh Current Science, 538-546, 1994 | | 1994 |
| Impact ionization in lower atmosphere of Venus HO Upadhyay, RP Singh NISCAIR-CSIR, India, 1994 | | 1994 |
| Detachment and instability of cometotail HO Upadhyay, RP Singh Advances in Space Research 13 (10), 267-270, 1993 | | 1993 |
| Role of the mode theory on lightning generated waves propagating in Venus-ionosphere waveguide HO Upadhyay Journal of geomagnetism and geoelectricity 45 (5), 383-392, 1993 | | 1993 |
| High-altitude Venus ionosphere RN Singh, HO Upadhyay Current Science, 565-568, 1990 | | 1990 |
| Generation of low-frequency oscillations in the subsolar venus ionopause RN Singh, HO Upadhyay Proceedings of the Indian Academy of Sciences-Earth and Planetary Sciences …, 1989 | | 1989 |
| Heating Efficiency of Venus Atmosphere RN Singh, HO Upadhyay LUNAR AND PLANETARY SCIENCE XVI, PP. 790. Abstract. 16, 790, 1985 | | 1985 |
