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N74-16038 Joint Publications Research Service, Arlington, Va. THE ALL-UNION HYDROLOGIC CONGRESSES

A. A. Sokolov In its Meteorology and Hydrol., no. 10, 1973 (JPRS-60954) Jan. 1974 p 1-9 Transl. into ENGLISH from Meteorol. Gidrolog. (Moscow), no. 10, 1973 p 3-8 (For availability see N74-16037 07-13)

A brief survey on a comprehensive study of water resources in the U.S.S.R. is reported. The practical utilization of the results of hydrologic research in the national economy is noted. G.G.

N74-16039 Joint Publications Research Service, Arlington, Va. PROBLEM OF THE EFFICIENT UTILIZATION AND CONSERVATION OF WATER RESOURCES AND THE GOALS OF HYDROLOGY

V. I. Korzun and A. A. Sokolov In its Meteorology and Hydrol., no. 10, 1973 (JPRS-60954) 10 Jan. 1974 p 10-21 Transl. into ENGLISH from Meteorol. Gidrolog. (Moscow), no. 10, 1973 p 9-17 (For availability see N74-16037 07-13)

Hydrological aspects of efficient utilization and conservation of water resources in the U.S.S.R. are discussed. Considered are: (1) Redistribution of water resources among wet and dry regions; (2) natural water pollution and its effects; (3) improvement of irrigation and drainage methods; (4) water erosion control; (5) hydrological calculations and forecasting; and (6) theoretical and experimental water balance research.

G.G.

N74-16040 Joint Publications Research Service, Arlington, Va. STATE SYSTEM OF INVENTORYING WATER AND ITS USAGE AND HYDROLOGIC CALCULATIONS AND FORECASTING

S. K. Cherkavskiy In its Meteorology and Hydrol., no. 10, 1973 (JPRS-60954) 10 Jan. 1974 p 22-35 Transl. into ENGLISH from Meteorol. Gidrolog. (Moscow), no. 10, 1973 p 18-26 (For availability see N74-16037 07-13)

The organizational and technical principles of the state system for inventorying water and its utilization by a system of information gathering and processing for compiling the U.S.S.R. state water cadaster are disucssed.

Author

N74-16041 Joint Publications Research Service, Arlington, Va. PROBLEM OF EVALUATING THE EFFECT OF HUMAN

ACTIVITY ON SURFACE WATER RESERVES

I. A. Shiklomanov In its Meteorology and Hydrol., no. 10, 1973 (JPRS-60954) 10 Jan. 1974 P 36-51 refs Transl. into ENGLISH from Meteorol. Gidrolog. (Moscow), no. 10, 1973 p 27-36 (For availability see N74-16037 07-13)

The problems of evaluating the variation in river runoff under the effects of the economic activity of man and, above all, the irrigated land and channel regulation are considered. Author

N74-16042 Joint Publications Research Service, Arlington, Va. HYDROLOGIC FORECAST AND WATER CONSERVATION Ye. G. Popov and V. D. Komarov In its Meteorology and Hydrol. no. 10, 1973 (JPRS-60954) 10 Jan. 1974 p 52-63 refs Transl. into ENGLISH from Meteorol. Gidrolog. (Moscow), no. 10. 1973 p 37-44 (For availability see N74-16037 07-13)

The value and practical utilization of hydrologic forecasts for water conservation in the U.S.S.R. was assessed. A brief investigation was performed of the methods of compiling the forecasts, and the most important problems and areas of research in the field of hydrologic forecasting. Author

N74-16043 Joint Publications Research Service, Arlington, Va. HYDROLOGY AND STRUCTURAL PLANNING AND DESIGN

A. I. Chebotarev and B. I. Serpik In its Meteorology and Hydrol.. no. 10, 1973 (JPRS-60954) 10 Jan. 1974 p 64-79 refs Transl. into ENGLISH from Meteorol. Gidrolog. (Moscow), no. 10, 1973 p 45-54 (For availability see N74-16037 07-13)

A brief discussion of the Instructions for determining the Calculated Hydrologic Characteristics SN (Construction Standards) 435-72 is presented. The errors permitted in preparing some of the normative documents are noted, and the primary problems are indicated, the resolution of which should promote improvement of the technical standardization in the field of calculating river runoff as applied to the requirements of structural design practice. Author

N74-16044 Joint Publications Research Service, Arlington, Va. AREAS AND PROBLEMS OF STUDYING THE FLUCTUATIONS OF RIVER RUNOFF OVER MANY YEARS

S. N. Kritskiy, M. F. Menkel, and D. Ya. Ratkovich In its Meteorology and Hydrol., no. 10, 1973 (JPRS-60954) 10 Jan. 1974 p 80-91 refs Transl. into ENGLISH from Meteorol. Gidrolog. (Moscow), no. 10, 1973 p 55-62 (For availability see N74-16037 07-13)

The modern state of science is considered in the field of prediction and description of the fluctuations of the river runoff as applied to the problems of engineering hydrology. The basic problems of future research are being formulated. Author

N74-16045 Joint Publications Research Service, Arlington, Va URGENT PROBLEMS OF STUDYING THE QUALITY OF SURFACE WATER

A. V. Karaushev and B. G. Skakalskiy In its Meteorology and Hydrol., no. 10, 1973 (JPRS-60954) 10 Jan. 1974 p 92-105 refs Transl. into ENGLISH from Meteorol. Gidrolog. (Moscow). no. 10, 1973 p 73-81 (For availability see N74-16037 07-13) The modern state of research is considered in connection with the quality characteristics of surface water in the U.S.S.R. and evaluation of the variation of water quality in rivers, lakes. and reservoirs as a result of human activity. Primary attention has been given to the problems occurring in connection with the necessity for regulating the water quality and the controlling pollution. A detailed study was made of the problems pertaining to the development of methods of calculating the variation of the water quality as a function of the influx of waste water and also as a function of hydrodynamic and hydrologic conditions.

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presented of decoding the television pictures from artificial satellites to study the snow cover, the ice situation in lakes, and hydrographic features. Prospects for the development of methods of decoding the television images from artificial satellites for the solution of problems connected with evaluating water resources, water regime and quality are evaluated. Author

N74-16047 Joint Publications Research Service, Arlington, Va. MODERN CONDITIONS AND FUTURE OF SEVAN LAKE G. G. Varbumyan In its Meteorology and Hydrol., no. 10, 1973 (JPRS-60954) 10 Jan. 1974 p 116-132 refs Transl. into ENGLISH from Meteorol. Gidrolog. (Moscow), no. 10, 1973 p 94-103 (For availability see N74-16037 07-13)

The water balance under natural conditions and with passage of the secular water storage of lake Sevan during the 1927-1971 period are presented. Information about using the secular water storage of lake Sevan for hydroelectric power and irrigation and physical-chemical and biological regimes in connection with lowering the lake level are discussed. In order to conserve and raise the level of the lake, sources of water are indicated for regulation in the transfer of runoff to lake Sevan. The water balance of lake Sevan is forecast for the period 1972-2000.

Author

N74-16048 Joint Publications Research Service, Arlington, Va. INTERNATIONAL COOPERATION OF HYDROLOGISTS A. G. Kovzel In its Meteorology and Hydrol., no. 10, 1973 (JPRS-60954) 10 Jan. 1974 p 133-152 refs Transl. into ENGLISH from Meteorol. Gidrolog. (Moscow), no. 10, 1973 p 110-122 (For availability see N74-16037 07-13)

The international cooperation of hydrologists is discussed in accordance with the program and goals of the International Hydrologic Decade, the station network of the International Hydrologic Decade of the U.S.S.R. and the world. Research with respect to the International Hydrologic Decade program relates to the field of water balance and floodings of representative and experimental basins.

Author

N74-16049# Geological Survey, Washington, D.C. CLASSIFICATION OF PUBLIC LANDS VALUABLE FOR GEOTHERMAL STEAM AND ASSOCIATED GEOTHERMAL RESOURCES

L. H. Godwin, L. B. Haigler, R. L. Rioux, D. E. White, L. J. P. Muffler, and R. G. Wayland 1971 21 p refs (CIRC-647) Avail: NTIS HC $3.25

The classification standards for determining which Federal lands are classifiable as geothermal steam and associated geothermal resources lands under the Geothermal Steam Act of 1970 (84 Stat. 1566) are presented. The concept of a geothermal resources province is established for classification of lands for the purpose of retention in Federal ownership of rights to geothermal resources upon disposal of Federal lands. A geothermal resources province is defined as an area in which higher than normal temperatures are likely to occur with depth and in which there is a reasonable possibility of finding reservoir rocks that will yield steam or heated fluids to wells. The determination of a known geothermal resources area is made after careful evaluation of the available geologic, geochemical, and geophysical data and any evidence derived from nearby discoveries, competitive interests, and other indicia. Author

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N74-16051# National Physical Lab., New Delhi (India). Radio Science Div.

D REGION DURING SOLAR ECLIPSES

D. K. Chakrabarty and A. P. Mitra May 1973 25 p refs (RSD-80) Avail: NTIS HC $3.25

Representative profiles are given of electron and positive and negative ion concentrations during solar eclipses. An ion chemical scheme is presented that satisfactorily explains the observed changes in these concentrations for the solar eclipses of March 7, 1970, November 12, 1966, and May 20, 1966 which occurred over Wallops Island, Brazil, and Greece respectively. It was found that a mere change of the ionizing radiation during solar eclipses can explain the observed variations in all their aspects above 80 km. Below 80 km, a satisfactory explanation of only the positive ion density is possible. To explain the severe decrease in electron density and the increase in effective recombination coefficient below 80 km, a decrease in the detachment rate of electrons from heavy negative ions from a pre-eclipse value of 2 x .01 1/5 less gradually to about zero at totality is necessary. Author

N74-16052# National Physical Lab., New Delhi (India). Radio Science Div.

THEORETICAL MODELS OF D-REGION ELECTRON DENSITY PROFILES

D. K. Chakrabarty and A. P. Mitra Apr. 1973 16 p refs (RSD-78) Avail: NTIS HC $3.00

Theoretical models of D-region electron density profiles are presented for the following conditions. (1) Low latitude station (10 degrees) and for solar minimum (F sub 10.7 equals 70 units) and maximum (F sub 10.7 equals 200 units) conditions. (2) Middle latitude station (40 degrees) and for solar minimum (F sub 10.7 equals 70 units) and maximum (F sub 10.7 cm equals 200 units) conditions. These models have been built on the basis of a suitable ion-chemical scheme and are given in tabular form from 0000 to 2400 hrs local time at intervals of half hour. Author

N74-16053# National Physical Lab., New Delhi (India). Radio Science Div.

NEUTRAL WIND VELOCITIES CALCULATED FROM TEMPERATURE MEASUREMENTS DURING A MAGNETIC STORM AND THE OBSERVED IONOSPHERIC EFFECTS O. P. Saxena and K. K. Mahajan Apr. 1973 19 p refs Presented at COSPAR Meeting, Konstanz, West Germany, 23-25 May 1973

(RSD-79; COSPAR-Paper-f.4) Avail: NTIS HC $3.00

Neutral temperature measurements on the OGO 6 satellite are used to calculate the neutral wind velocities during the magnetic storm of Sept. 27, 1969. The neutral densities required for these calculations are taken from the Jacchia 1971 model and the electron density profiles from the foF2 data, with appropriate modelling above and below the F 2 peak. These velocities, when compared with those calculated for magnetically quiet conditions, indicate that while the wind velocities during the magnetic storm remain relatively unaffected at the low latitudes, they show a significant change at the mid and the high latitudes. The observed ionospheric effects during the storm, which show a large decrease in the F 2 region electron density at the mid and high latitudes and practically no change at the low latitudes, are discussed in relation to the calculated wind velocities. Author

N74-16054# National Physical Lab., New Delhi (India). Radio Science Div.

ESTIMATION OF H(PLUS) FLUXES AT POLAR REGIONS K. K. Mahajan and V. K. Pandey May 1973 15 p refs (RSD-81) Avail: NTIS HC $3.00

Alouette-2 electron density profiles to heights of 3000 km are analyzed for low, mid and polar latitudes. The electron scale heights at the low and mid latitudes indicate H(+) to be the dominant ionic constituent for heights above 1000 km. At the polar regions the scale heights are low, indicating dominance of O(+) ions. This situation is in reverse to diffusive equilibrium conditions, where one would expect H(+) to be the major ion at heights above 1000 km and thus this lends support to the theories of H(+) escape at the polar regions. The electron distributions at the mid and high latitudes are used to estimate

the H(+) flow velocity at the polar regions. The calculated velocity is in reasonable agreement with that expected from the polar wind theory. Author

N74-16055*# Virginia Polytechnic Inst. and State Univ.. Blacksburg. Dept. of Engineering Science and Mechanics. STATISTICAL ANALYSIS OF LOW LEVEL ATMOSPHERIC TURBULENCE

H. W. Tieleman and W. W. L. Chen Jan. 1974 226 prefs (Grant NGL-47-004-67)

(NASA-CR-137456; VPI-E-74-3) Avail: NTIS HC $13.50 CSCL

04A

The statistical properties of low-level wind-turbulence data were obtained with the model 1080 total vector anemometer and the model 1296 dual split-film anemometer, both manufactured by Thermo Systems Incorporated. The data obtained from the above fast-response probes were compared with the results obtained from a pair of Gill propeller anemometers. The digitized time series representing the three velocity components and the temperature were each divided into a number of blocks, the length of which depended on the lowest frequency of interest and also on the storage capacity of the available computer. A moving-average and differencing high-pass filter was used to remove the trend and the low frequency components in the time series. The calculated results for each of the anemometers used are represented in graphical or tabulated form. Author

N74-16056*# Louisiana State Univ., Baton Rouge. Div. of Engineering Research.

A STUDY OF SEDIMENT TRANSPORT AND EROSION IN THE FOURCHON AREA OF SOUTH LOUISIANA

R. P. Self (Nicholls State Univ.) Dec. 1973 30 p refs (Grant NGL-19-001-105)

(NASA-CR-136676; AOP-3) Avail: NTIS HC $3.50 CSCL

08H

Aerial photography in the form of color infrared and color positive transparencies were used as aids in evaluating the rate and effect of erosion and sediment transport in Bay Champagne, a coastal marshland of Louisiana. Problems were found in the aerial photography method used. Vegetational differences do not always reflect sediment differences. Only areas containing different soils and sediments are easily defined with aerial photography. The shoreline erosion rate is 75 to 100 ft/yr. Areas which are undergoing erosion shift due to changes in wave refraction. In canals and channels with strong currents, erosion also occurs at a rapid rate. It is recommended that drainage patterns be studied carefully before breaches are made as man-made breaches could reverse drainage.

S.K.W.

N74-16057# Joint Publications Research Service. Arlington,

Va.

COUPLING OF THE UPPER AND LOWER ATMOSPHERE BY INFRARED RADIATION AND THE POSSIBILITY OF FORECASTING PRESSURE VARIATIONS AT SEA LEVEL DURING GEOMAGNETIC DISTURBANCES

B. F. Gordiyets, M. N. Markov, and L. A. Shelepin 30 Jan. 1974 10 p refs Transl. into ENGLISH from Dokl. Akad. Nauk SSSR, v. 212, no. 2, 1973 p 341-344 (JPRS-61096) Avail: NTIS HC $3.00

A possible mechanism of energy transfer from the upper atmosphere downward into the stratosphere and troposphere is presented. It demonstrated in what way small disturbances caused by the release of this energy can lead to a significant variation of the pressure at sea level.

Author

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N74-16059# Physical Research Lab., Ahmedabad (India). ENHANCEMENT OF THE EQUATORIAL ANOMALY IN THE TOPSIDE IONOSPHERE DURING MAGNETIC STORMS R. Raghavarao and M. R. Sivaraman 1973 7 p refs Submitted for publication (AER-73-05) Avail: NTIS HC $3.00

Alouette ionograms were used to obtain latitudinal variations of the topside electron density through the equatorial anomaly region at American longitudes during eight magnetic storm events Seven of the events showed enhancements of the anomaly compared to that observed during magnetically quiet conditions. The events related to different phases of the magnetic storms. as well as to different local times. Author

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The applicability of recognition-processing procedures for multispectral scanner data from areas and conditions used for programming the recognition computers to other data from different areas viewed under different measurement conditions was studied. The reflective spectral region approximately 0.3 to 3.0 micrometers is considered. A potential application of such techniques is in conducting area surveys. Work in three general areas is reported: (1) Nature of sources of systematic variation in multispectral scanner radiation signals, (2) An investigation of various techniques for overcoming systematic variations in scanner data: (3) The use of decision rules based upon empirical distributions of scanner signals rather than upon the usually assumed multivariate normal (Gaussian) signal distributions.

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The ambient trapped particle fluxes incident on the ATS-F satellite were determined. Several synchronous circular flight paths were evaluated and the effect of parking longitude on vehicle encountered intensities was investigated. Temporal variations in the electron environment were considered and partially accounted for. Magnetic field calculations were performed with a current field model extrapolated to a later epoch with linear time terms. Orbital flux integrations were performed with the latest proton and electron environment models using new improved computational methods. The results are presented in graphical and tabular form; they are analyzed, explained, and discussed. Estimates of energetic solar proton fluxes are given for a one year mission at selected integral energies ranging from 10 to 100 Mev. calculated for a year of maximum solar activity during the next solar cycle.

Author

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(NASA-TM-X-70582; X-621-74-28) Avail: NTIS HC $3.25 CSCL 04A

Unexpectedly abrupt and pronounced distributions of the thermal molecular ions NO(+), 02(+) and N2(+) were observed at mid and high latitudes by the OGO-6 ion mass spectrometer. These minor ions may reach concentration levels exceeding 1000 ions/cu cm at altitudes as great as 1000 km, suggestive of scale heights well in excess of those inferred from low and mid-latitude measurements, under relatively undisturbed conditions. The high latitude ion enhancements were observed to be narrowly defined in time and space, with molecular ion concentrations changing by as much as an order of magnitude between successive orbits.

Author

N74-16065*# National Aeronautics and Space Administration. Lyndon B. Johnson Space Center, Houston, Tex. MISSISSIPPI SOUND REMOTE SENSING STUDY B. H. Atwell Apr. 1973 75 p refs Original contains color illustrations

(NASA-TM-X-69783; ERL-048) Avail: NTIS HC $5.75 CSCL

08H

The Mississippi Sound Remote Sensing Study was initiated as part of the research program of the NASA Earth Resources Laboratory. The objective of this study is development of remote sensing techniques to study near-shore marine waters. Included within this general objective are the following: (1) evaluate existing techniques and instruments used for remote measurement of parameters of interest within these waters; (2) develop methods for interpretation of state-of-the-art remote sensing data which are most meaningful to an understanding of processes taking place within near-shore waters; (3) define hardware development requirements and/or system specifications; (4) develop a system combining data from remote and surface measurements which will most efficiently assess conditions in near-shore waters; (5) conduct projects in coordination with appropriate operating agencies to demonstrate applicability of this research to environmental and economic problems. Author

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ture of the sea surface was measured in two spectral intervals. The specifications of the equipment and the conditions under which the tests were conducted are described. Results of the tests are presented in the form of graphs. Author

N74-16067*# National Aeronautics and Space Administration.
Mississippi Test Facility, Bay Saint Louis.
REMOTE MEASUREMENT OF WATER COLOR IN COASTAL
WATERS

J. W. Weldon Aug. 1973 57 p refs
(NASA-TM-X-69784; RERL-083) Avail: NTIS HC $5.00 CSCL

08J

An investigation was conducted to develop procedure to obtain quantitative values for chlorophyll and turbidity in coastal waters by observing the changes in spectral radiance of the backscattered spectrum. The technique under consideration consists of Examining Exotech model 20-D spectral radiometer data and determining which radiance ratios best correlated with chlorophyll and turbidity measurements as obtained from analyses of water samples and sechi visibility readings. Preliminary results indicate that there is a correlation between backscattered light and chlorophyll concentration and secchi visibility. The tests were conducted with the spectrometer mounted in a light aircraft over the Mississippi Sound at altitudes of 2.5K, 2.8K and 10K feet. Author

N74-16068# Anacapa Sciences, Inc., Santa Barbara, Calif. CHART INTERPRETATION IN LOW-ALTITUDE FLIGHT Technical Report, 1970-1971

James J. McGrath Mar. 1973 52 p refs (Contract N61339-70-C-0306)

(AD-766466; AS-102-3; NAVTRAEQUIPC-70-C-0306-2) Avail: NTIS CSCL 08/2

The report discusses the use of wide angle cinematic simulators in pilot training intended to augment the training received by U.S. Navy replacement pilots undertaking advanced flight training in low-altitude attack operations. Since chart interpretation is essentially a process of correlating the actual visual scene with its representation on an aeronautical chart, the special characteristics of the low-altitude visual scene and the inherent limitations of aeronautical charts as representations of the earth's surface are described. Then, factors that are critical to accurate interpretation of different classes of features portrayed on charts are discussed and illustrated. (Modified author abstract) GRA

N74-16069# Institut Franco-Allemand de Recherches, St. Louis (France).

MEASUREMENT OF MESOSPHERIC LIGHT, PART 2 Final Report, 1971 [LICHTMESSUNGEN IN DER MESOSPHAERE. 2. TEIL SCHLUSSBERICHT 1971]

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refs In

F. Roessler and H. Gulitz 28 Nov. 1972
GERMAN

(Contract T/0260/12630/11013; Contract WRK-157)
(ISL-34/72) Avail: NTIS HC $4.50

The results of noctilucent cloud rocket sounding above Kiruna (Sweden) in 1970 to measure sky luminance are reported. The rocketborne optical and mechanical equipment is described. Data processing and methods to minimize measurement errors due to solar radiation and rocket precession disturbing effects are outlined. At altitudes of 82 and 86 km, two atmospheric layers characterized by mean size dust particle generation, as well as diffuse layers containing Aitken nuclei, were evidenced. ESRO

N74-16070# Stockholm Univ. (Sweden). Inst. of Meteorology. THE INFLUENCE OF THE CARRIER GAS ON THE INFRARED GAS ANALYSIS OF ATMOSPHERIC CO2 Walter Bischof Sep. 1973 10 prefs (Contract SWEDSRC-0223-051) (AC-26) Avail: NTIS HC $3.00

In order to investigate the influence of different types of gas analyzers and various carrier gases for CO2, mixtures of constant CO2 content but varying N2/02 ratio were prepared and analyzed. The constant CO2 concentration is connected to the equipment for flash sample analysis. In this way, an analysis reproducibility of about 0.4 ppm can be obtained for an individual sample. Three types of analyzers were investigated: URAS 1. UNOR 2, and UNOR 5B. About 266 mixtures were prepared

and analyzed. The intercomparison of standards (and samples as well) may be complicated by different types of analyzers and gas mixtures used within different projects. ESRO

N74-16071# Instituto Geografico y Catastral, Madrid (Spain). Seccion de Geomagnetismo y Aeronomia.

HARMONIC ANALYSIS OF GEOMAGNETIC FIELD DIURNAL VARIATIONS IN SPAIN DURING ONE SOLAR CYCLE [ESTUDIO MEDIANTE EL ANALISIS ARMONICO DE LA VARIACION DIARIA DEL CAMPO GEOMAGNETICO EN LOS OBSERVATORIOS DE LA PENINSULA IBERICA DURANTE UN CICLO SOLAR]

Fernando Aranaz Y Delrio 1973 146 p refs In SPANISH Avail: NTIS HC $9.50

The harmonic analysis technique was used to analyze geomagnetic data recorded from the Toledo, Lograno, Almeria, and San Fernando y Coimbra Observatories during the 1958 to 1968 period (which corresponds to one solar activity cycle). The daily variations of the geomagnetic field components were determined and correlated to the solar activity variations. ESRO

N74-16072# Max-Planck-Institut fuer Aeronomie, Lindau Uber
Northeim (West Germany). Inst. fuer Stratosphaerenphysik.
A MULTISATELLITE STUDY OF AURORAL-ZONE PHENOM-
ENA. PART 1: OBSERVATIONS DURING A MODERATELY
DISTURBED PERIOD ON 11 NOVEMBER 1969

L. Possberg, E. Lammers (Brunswick Univ.), W. Riedler (Tech.
Hochschule, Graz), G. Skovli (Norweg. Defence Res. Estab., Kjeller),
F. Soeraas (Bergen Univ.). P. Stauning (Tech. Univ.. Lyngby,
Den.), B. Theile (Brunswick Univ.)08 (Radio and Space Res. Sta..
Slough, Engl.), and G. R. Thomas Paris ESRO May 1973
56 P
refs Sponsored in part by Bundesmin. fuer Forsch. und
Technol., Danish Space Res. Inst., Roy. Norweg. Council for Sci.
and Technol., Sci. Res. Council, Engl., Space Res. Inst. of the
Austrian Acad. of Sci., and Swed. Nat. Sci. Res. Council and
ESRO

(ESRO-SR-23-Pt-1) Avail: NTIS HC $5.00

Multisatellite observations of particles and transverse magnetic field variations in and near the auroral zone were studied for moderately disturbed magnetic conditions during 11 November 1969. Particle and field data in the outer magnetosphere and in interplanetary space were also included in the study. The results show that, whereas most but not all of the nightside auroral zone disturbances can be related to changes in the distant magnetosphere, the dayside disturbances are not easily interpreted in terms of such changes.

Author

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CATALOGUE OF TERRESTRIAL CRATERIFORM STRUC

TURES. PART 1: CANADA

R. J. Fryer, comp. (Lancaster Univ.) and C. Titulaer, ed. (Obs de Paris, Meudon) Dec. 1970 63 p refs Prepared jointly with Intern. Astron. Union (ESRO-SP-92) Avail: NTIS HC $5.25

A catalog of craters and crateriform structures in Canada is presented. This makes it possible to compare terrestrial features with planetary features of equivalent size. Craters are listed irrespective of their mode of origin, to serve as a basis for the analysis of lunar and planetary photographs. ESRO

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CATALOGUE OF TERRESTRIAL CRATERIFORM STRUCTURES. PART 2: INDONESIA

M. Neumannvan Padang, comp., R. J. Fryer, ed. (Lancaster Univ.). and C. Titulaer, ed. (Obs. de Paris, Meudon) Oct. 1970 63 p refs Prepared jointly with Intern. Astron. Union 2 Vol. (ESRO-SP-93) Avail: NTIS HC $5.25

A catalog is presented of craters and structures in Indonesia. Comparisons are made of terrestrial features and planetary features. The catalog is comprehensive, and lists craters irrespective of their origin. ESRO

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This report contains recommendations to aid those concerned with photochemical modeling in planning studies. The suggested programs are designed to provide information needed to develop kinetic models to describe the chemical transformations of atmospheric pollutants. The core of this report focuses on kinetic and mechanistic studies of individual reactions, smog chamber studies, and atmospheric measurement programs that the authors feel should be undertaken to provide the necessary data for model development. Existing deficiencies in knowledge in each of these areas are discussed and the types of programs needed to provide the missing information are examined in detail. The report also includes a short history of model development, describing the various photochemical mechanisms developed to date. Author (GRA)

N74-16079# Ohio State Univ., Columbus. Dept. of Geodetic Science.

APPLICATION OF KINEMATICAL GEODESY FOR DETER-
MINING THE SHORT WAVE LENGTH COMPONENTS OF
THE GRAVITY FIELD BY SATELLITE GRADIOMETRY Ph.D.
Thesis. Scientific Interim Report

George B. Reed Mar. 1973 179 p refs
(Contract F19628-72-C-0120; AF Proj. 8607)

(AD-768973; DGS-201; AFCRL-TR-73-0535; SR-9) Avail NTIS CSCL 08/5

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