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performance. We plan to measure the SBI spectral response to check the +/- 10% flatness over its broad wavelength range, calculated from our previous optical modeling. References Bernasconi, P., et al., The Solar Bolometric Imager, Adv. Sp. Res. 33, 1746, 2004. Foukal,P., Libonate,S., Total – light imager with flat spectral response for solar photometric measurements, Appl. Opt., 40,1138,2001 Foukal, P., et al., Broad-band measurements of facular contrast using the solar bolometric imager, Ap.J. Letts, 611,57, 2004 Foukal,P., Bernasconi,P., Walton,S., Can changing sunspot and facular areas reproduce the amplitude of total irradiance variations? AGU Spring Meeting New Orleans, May 2005,abstract SH22B-02. 156
On measuring the radiant properties of objects of observations for the Global Earth Observation System of Systems (GEOSS) V.N. Krutikov Federal Agency on Technical Regulating and Metrology, Moscow, Russia V.I. Sapritsky, B.B. Khlevnoy, B.E. Lisiansky, S.P. Morozova, S.A. Ogarev, A.S. Panfilov, M.K. Sakharov, M.L. Samoylov All-Russian Institute for Opto- Physical Measurements (VNIIOFI), Moscow, Russia G. Bingham, T. Humpherys, A. Thurgood Space Dynamics Laboratory, Logan, Utah, USA V.E. Privalsky Vega International Inc., New York, NY, USA Abstract. The report describes major radiometric calibration tasks arising in connection with the upcoming implementation of the GEOSS programs, including the unity of measurements and their traceability to national and international standards. The new stringent requirements for the accuracy and repeatability of radiometric observations within the GEOSS program and in other areas call for new approaches to both ground and space calibration of radiometric instruments some of which are described in this report. The task of developing the GEOSS to support a stable development of the world community has been advanced at the beginning of this century at the highest political level by representatives of more than 50 countries and more than 30 international organizations. The GEOSS program plan defines major areas of GEOSS data application, implementation milestones and organizational structure, and involves extensive observations within the optical spectral bandwidth. In addition to providing imagery data, planned GEOSS instruments can measure radiance, reflective properties, and radiant temperature of objects of observations. Such measurements require complete metrological support for the instruments. In general, the data supplied by various GEOSS subsystems will be used by different participants of the program under the condition of their unified standard presentation (formats, geolocation, etc.). Also, the unity of data acquired by different subsystems (traceability to national and international standards) is required for many applications such as climatology, meteorology, and environmental monitoring. This important task has not yet been adequately included into the 10-yr plan; therefore, measures need to be taken by the national metrological organizations to advance the idea and implement it at a proper international level. The instrument designers are required to supply the program with instruments that are capable of providing high-quality data. Within the wide spectrum of the GEOSS program applications, the highest requirements for the long-term repeatability and accuracy of the optical instrumentation are imposed by climatology, which uses data accumulated over the time spans on the order of decades. According to the recently documented requirements for instrument calibrations [NISTIR 7047], the required values are, respectively: • 0.02% per decade and 0.1% within the spectral band from 0.2 µm to 3 µm, and • 0.01K per decade and 0.1K within the spectral band from 3 µm to 15 µm. A necessary condition for meeting these requirements and ensuring the unity of observations is a high-level support for the methodology basis and the equipment used for both ground and space-borne radiometric calibrations. The methodology basis includes such components as unified proper terminology, common definitions of measurands and respective physical units, calibration techniques and estimation of measurement accuracy as a part of the calibration procedure. The ground calibration tasks presented in this report include better calibration standards, techniques and means to transfer radiometric quantity dimension from standard sources to the instruments that are being calibrated, calibration installations, and international inter-comparisons of radiometric standards. These activities should result in universal, stable and highly accurate scales of radiometric quantities. The report describes the efforts that are being undertaken at • the All-Russian Research Institute for Opto-Physical Measurements (VNIIOFI), with Proceedings NEWRAD, 17-19 October 2005, Davos, Switzerland 157
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NEWRAD PROCEEDINGS OF THE 9 TH INTE
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NEWRAD 2005 Scientific Program Day
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14:50 Hiroshi Shitomi, AIST 5-3 Pho
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NEWRAD 2005 Scientific Program-Post
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33. Drift in the absolute responsiv
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Session 6 Novel Techniques 64. The
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Session 9 Realisation of scales 94.
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Absolute Accuracy of Total Solar Ir
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Low-uncertainty absolute radiometri
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NIST Reference Cryogenic Radiometer
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Measurement of the absorptance of a
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Grooves for Emissivity and Absorpti
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New apparatus for the spectral radi
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VUV and Soft X-ray metrology statio
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The metrology line on the SOLEIL sy
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Cryogenic radiometer developments a
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measured with BiTe thermopiles. Exp
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variations of the spectral sensitiv
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aperture area by I = π·L·F·A, w
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Table 1 Ratio of radiometric power
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Consistency of radiometric temperat
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Project of absolute measuring instr
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Session 2 UV, Vis, and IR Radiometr
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Table 1: Summary of the quality ass
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wavelength / nm U180 @ MLS band wid
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ight half is uncoated. Measurements
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Change [%] 2 1 0 -1 -2 -3 -4 PTFE d
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had been accommodated to industrial
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Relative Uncertainty 0.4% 0.3% 0.2%
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instrument differences or from diff
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3.00E-08 Nomalized radiant flux 2.5
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frequencies, the chopping frequency
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600 mA for each set. In both cases,
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Detailed and comparative results wi
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measurement to an independent spect
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The stability of silicon n-on-p jun
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applied. Reproducibility of measure
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Mutual comparison Mutual comparison
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A comparison of the performance of
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Stray-light correction of array spe
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Characterizing the performance of U
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Optical Radiation Action Spectra fo
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A newly developed double broadband
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On potential discrepancies between
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Correcting for bandwidth effects in
Page 105 and 106: Establishment of Fiber Optic Measur
Page 107 and 108: Detector-based NIST-traceable Valid
Page 109 and 110: Long-term calibration of a New Zeal
Page 111 and 112: Drift in the absolute responsivitie
Page 113 and 114: Radiance source for CCD low-uncerta
Page 115 and 116: Improved NIR spectral responsivity
Page 117 and 118: Characterization of a portable, fib
Page 119 and 120: Synchrotron radiation based irradia
Page 121 and 122: The Spectral Irradiance and Radianc
Page 123 and 124: NIST BXR I Calibration A. Smith, T.
Page 125 and 126: NIST BXR II Infrared Transfer Radio
Page 127 and 128: Proceedings NEWRAD, 17-19 October 2
Page 129 and 130: Spectral responsivity interpolation
Page 131 and 132: Monochromator Based Calibration of
Page 133 and 134: Study of the Infrared Emissivity of
Page 135 and 136: Radiometric Stability of a Calibrat
Page 137 and 138: Session 3 Photolithography and UV P
Page 139 and 140: NEWRAD 2005: Improvements in EUV re
Page 141 and 142: Measuring pulse energy with solid s
Page 143 and 144: Vacuum ultraviolet quantum efficien
Page 145 and 146: Spatial Anisotropy of the Exciton R
Page 147 and 148: Comparison of spectral irradiance r
Page 149 and 150: Session 4 Remote sensing Proceeding
Page 151 and 152: Solar Radiometry from SORCE G. Kopp
Page 153 and 154: Inter-comparison Study of Terra and
Page 155: The Solar Bolometric Imager - Recen
Page 159 and 160: A Model of the Spectral Irradiance
Page 161 and 162: Determination of Aerosol Optical De
Page 163 and 164: Procedures of absolute calibration
Page 165 and 166: Using a Blackbody to Determine the
Page 167 and 168: On the drifts exhibited by cryogeni
Page 169 and 170: On-orbit Characterization of Terra
Page 171 and 172: Space solar patrol mission for moni
Page 173 and 174: Multi-channel ground-based and airb
Page 175 and 176: Thermal Modelling and Digital Servo
Page 177 and 178: Calibration of Filter Radiometers f
Page 179 and 180: Radiometric Calibration of a Coasta
Page 181 and 182: A Verification of the Ozone Monitor
Page 183 and 184: Session 5 Photometry and Colorimetr
Page 185 and 186: Review on new developments in Photo
Page 187 and 188: Linking Fluorescence Measurements t
Page 189 and 190: Photoluminescence from White Refere
Page 191 and 192: A Simple Stray-light Correction Mat
Page 193 and 194: New robot-based gonioreflectometer
Page 195 and 196: Rotational radiance invariance of d
Page 197 and 198: Minimizing Uncertainty for Traceabl
Page 199 and 200: Development of a total luminous flu
Page 201 and 202: Determination of the diffuser refer
Page 203 and 204: DEVELOPMENT OF A LUMINANCE STANDARD
Page 205 and 206: Measuring photon quantities in the
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Session 6 Novel techniques Proceedi
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Characterization of germanium photo
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Determination of luminous intensity
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ËÒÐ¹ÔÓØÓÒ ×ÓÙÖ ÖÐÒ
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The Measurement of Surface and Volu
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The evaluation of a pyroelectric de
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UV detector calibration based on an
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NEWRAD 2005: Non selective thermal
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NEWRAD 2005 Calibration of Current-
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Simplified diffraction effects for
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Widely Tunable Twin-Beam Light Sour
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Measurement of quantum efficiency u
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Session 7 International Comparisons
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The CCPR K1-a Key Comparison of Spe
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Comparison of Measurements of Spect
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APMP PR-S1 comparison on irradiance
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Comparison Measurements of Spectral
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Comparison of mid-infrared absorpta
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Comparison of photometer calibratio
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A Comparison of Re-C, Pt-C, and Co-
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Session 8 Radiometric and Photometr
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Application of Metal (Carbide)-Carb
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On Estimation of Distribution Tempe
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Hyperspectral Image Projectors for
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Reproducible Metal-Carbon Eutectic
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Thermodynamic temperature determina
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Spatial Light Modulator-based Advan
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Novel subtractive band-pass filters
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Analysis of the Uncertainty Propaga
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Absolute linearity measurements on
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Comparison of two methods for spect
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Precision Extended-Area Low Tempera
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Flash Measurement System for the 25
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A normal broadband irradiance (Heat
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A laser-based radiance source for c
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Furnace for High-Temperature Metal
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Investigations of Impurities in TiC
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Determining the temperature of a bl
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High-temperature fixed-point radiat
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Long-term experience in using deute
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High-temperature fixed-point radiat
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A comparison of Co-C, Pd-C, Pt-C, R
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Irradiance measurements of Re-C, Ti
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Evaluation and improvement of the p
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The Spectrally Tunable LED light So
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Session 9 Realisation of scales Pro
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The Realization and the Disseminati
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The establishment of the NPL infrar
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The PTB High-Accuracy Spectral Resp
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ÆÛ ÑØÓ ÓÖ Ø ÔÖÑÖÝ ÖÐ
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An integrated sphere radiometer as
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From X-rays to T-rays: Synchrotron
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Infrared Radiometry at LNE: charact
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Transfer standard pyrometers for ra
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Preliminary Realization of a Spectr
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New photometric standards developme
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Distribution temperature scale real
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Gloss standard calibration by spect
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Absolute cryogenic radiometry in th
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Detailed Comparison of Illuminance
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Radiometric Temperature Comparisons
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Characterization of Thermopile for
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Detector Based Traceability Chain E
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Comparison of the PTB Radiometric S
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Spectral Responsivity Scale between
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Realization of the NIST Total Spect
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Goniometric Realisation of Reflecta
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