Characteristic spectral reflectance of a semi-arid environment

Abstract Comprehensive information on the spectral reflectivity of several desert habitats and of dominant desert vegetation are presented. No previous high resolution spectral reflectance measurements were made in this semi-arid Sahara-Arabian phytogeographic zone. Due to the relative homogeneity of the region, in terms of terrain type and comprehensive sampling, the local scale surface albedo was estimated to be about 30–33 per cent. It was also possible to revisit the currently accepted hypothesis on the observed contrasts in surface reflectivity between protected and overgrazed areas. It seems that anthropogenic activities, which prevent the accumulation of crust or destroy an existing crust, rather than the overgrazing mechanism itself, are the main reasons for the sharp contrast between the protected and overgrazed surfaces.

[1]  Kriebel Kt,et al.  Measured spectral bidirectional reflection properties of four vegetated surfaces. , 1978 .

[2]  N. J. Rosenberg,et al.  Microclimate: The Biological Environment. , 1976 .

[3]  Robert J. Wheeler,et al.  A multiwavelength Airborne Radiometer Scanner (ARS) for measuring surface bidirectional reflectance characteristics , 1994 .

[4]  Herbert Jacobowitz,et al.  The Earth Radiation Budget derived from the NIMBUS 7 ERB Experiment , 1984 .

[5]  Compton J. Tucker,et al.  Directional reflectance factor distributions for cover types of Northern Africa , 1985 .

[6]  J. Otterman,et al.  Earth-atmosphere system and surface reflectivities in arid regions from Landsat MSS data , 1976 .

[7]  M. Evenari,et al.  The Negev: The Challenge of a Desert , 1972 .

[8]  Alfredo Huete,et al.  Bidirectional properties and utilizations of high-resolution spectra from a semiarid watershed , 1994 .

[9]  K. Kriebel,et al.  Measured spectral bidirectional reflection properties of four vegetated surfaces. , 1978, Applied optics.

[10]  D. E. Bowker,et al.  Spectral reflectances of natural targets for use in remote sensing studies , 1985 .

[11]  A. Karnieli,et al.  Spectral reflectance of biogenic crust developed on desert dune sand along the Israel-Egypt border , 1995 .

[12]  D. Lenschow,et al.  STUDY OF A CONTINENTAL SURFACE ALBEDO ON THE BASIS OF FLIGHT MEASUREMENTS AND STRUCTURE OF THE EARTH'S SURFACE COVER OVER NORTH AMERICA* , 1964 .

[13]  D. Diner,et al.  MISR: A multiangle imaging spectroradiometer for geophysical and climatological research from Eos , 1989 .

[14]  Patrick Minnis,et al.  Angular radiation models for Earth-atmosphere system. Volume 1: Shortwave radiation , 1988 .

[15]  P. Rowntree,et al.  Atmospheric Parameterization Schemes for Evaporation over Land: Basic Concepts and Climate Modeling Aspects , 1991 .

[16]  R. Pinker,et al.  Modelling planetary bidirectional reflectance over land , 1990 .

[17]  Howard W. Barker,et al.  Surface Albedo Estimates from Nimbus-7 ERB Data and a Two-Stream Approximation of the Radiative Transfer Equation. , 1989 .

[18]  D. Starr,et al.  An increase of early rains in Southern Israel following land-use change? , 1990 .

[19]  Darrel L. Williams,et al.  Collection of in situ forest canopy spectra using a helicopter - A discussion of methodology and preliminary results , 1984 .

[20]  R. Dickinson,et al.  The Project for Intercomparison of Land Surface Parameterization Schemes (PILPS): Phases 2 and 3 , 1993 .

[21]  S. I. Rasool,et al.  Surface albedo and the Sahel drought , 1984, Nature.

[22]  V. Salomonson,et al.  MODIS: advanced facility instrument for studies of the Earth as a system , 1989 .

[23]  H. Tsoar,et al.  The ecological background, deterioration and reclamation of desert dune sand. , 1990 .

[24]  T. F. Eck,et al.  Bidirectional reflectances of selected desert surfaces and their three-parameter soil characterization , 1990 .

[25]  A. Goetz,et al.  The high resolution imaging spectrometer (HIRIS) for Eos , 1989 .

[26]  A. Danin.  Plant Species Diversity and Plant Succession in a Sandy Area in the Northern Negev , 1978 .

[27]  J. Otterman,et al.  Baring High-Albedo Soils by Overgrazing: A Hypothesized Desertification Mechanism , 1974, Science.

[28]  R. Saunders.  The determination of broad band surface albedo from AVHRR visible and near-infrared radiances , 1990 .

[29]  A. Danin,et al.  The role of cyanobacteria in stabilization of sand dunes in Southern Israel , 1989 .

[30]  D. Kimes.  Dynamics of directional reflectance factor distributions for vegetation canopies. , 1983, Applied optics.

[31]  Paul T. Tueller,et al.  Remote sensing science applications in arid environments , 1987 .

[32]  Larry L. Stowe,et al.  Reflectance characteristics of uniform Earth and cloud surfaces derived from NIMBUS‐7 ERB , 1984 .

[33]  W. R. Bandeen,et al.  Remote sensing of the atmosphere from environmental satellites , 1978 .

[34]  J. Joseph,et al.  Variability of climatic boundaries in Israel—Use of modified Budyko‐Lettau aridity index , 1986 .

[35]  R. Dickinson.  Land Surface Processes and Climate—Surface Albedos and Energy Balance , 1983 .

[36]  J. Otterman,et al.  Absorption of insolation by land surfaces with sparse vertical protrusions , 1983 .

[37]  Garik Gutman,et al.  A Simple Method for Estimating Monthly Mean Albedo of Land Surfaces From AVHRR Data , 1988 .

[38]  Accuracy of Satellite Land Surface Reflectance Determination , 1991 .

[39]  G. Nacke.  Surface albedo derived from METEOSAT imagery with an application to Africa , 1991 .

[40]  R. T. Pinker,et al.  Determination of surface albedo from satellites , 1985 .

[41]  S. Hook,et al.  Laboratory Reflectance Spectra of 160 Minerals, 0.4 to 2.5 Micrometers , 1992 .

[42]  M. Iqbal.  An introduction to solar radiation , 1983 .

[43]  J. Otterman.  Satellite and field studies of man's impact on the surface in arid regions , 1981 .

[44]  Melvin B Satterwhite,et al.  Hyperspectral Signatures (400 to 2500 nm) of Vegetation, Minerals, Soils, Rocks, and Cultural Features: Laboratory and Field Measurements , 1990 .

[45]  Brent N. Holben,et al.  Directional reflectance response in AVHRR red and near-IR bands for three cover types and varying atmospheric conditions , 1986 .

[46]  J. Otterman,et al.  Anthropogenic impact on the albedo of the earth , 1977 .

[47]  Thomas J. Jackson,et al.  An Interdisciplinary Field Study of the Energy and Water Fluxes in the Atmosphere–Biosphere System over Semiarid Rangelands: Description and Some Preliminary Results , 1991 .

[48]  M. S. Moran,et al.  Bidirectional reflectance factors of agricultural targets: A comparison of ground-, aircraft-, and satellite-based observations , 1990 .

[49]  M. Budyko,et al.  Climate and life , 1975 .

[50]  J. Otterman,et al.  Western Negev and Sinai ecosystems: Comparative study of vegetation, albedo, and temperatures , 1975 .

[51]  Charles H. Whitlock,et al.  Surface bidirectional reflectance properties of two southwestern Arizona deserts for wavelengths between 0.4 and 2.2 micrometers , 1987 .

[52]  A. Danin,et al.  Plant adaptations in desert dunes , 1991 .

[53]  K. Coulson,et al.  The Spectral Reflectance of Natural Surfaces , 1971 .

[54]  M. S. Moran,et al.  Bidirectional Calibration Results for 11 Spectralon and 16 BaSO4 Reference Reflectance Panels , 1992 .

[55]  H. Neckel,et al.  The solar radiation between 3300 and 12500 Å , 1984 .

[56]  B. Pinty,et al.  A Method for the Estimate of Broadband Directional Surface Albedo from a Geostationary Satellite , 1987 .

[57]  D. H. Yaalon,et al.  THE INFLUENCE OF DUST ON SOILS DURING THE QUATERNARY , 1973 .

[58]  J. Otterman,et al.  Satellite Measurements of Surface Albedo and Temperatures in Semi-Desert , 1985 .