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| 1 | Seasonal water storage change of the Yangtze River basin detected by GRACE显示文摘US-Germany co-sponsered satellite gravimetry mission GRACE (Gravity Recovery And Climate Experiment), launched in March 2002, has been producing monthly time series of Earth gravity models up to degree and order of 120. The GRACE mission consists of two identical satellites flying on an almost polar orbit with an altitude of about 300-500 km and satelite-to-satellite ranging of about 220 km. Thanks to the payloads of space-borne GPS receivers, accelerometers and high-precision K-band satelite-to-satellite ranging mesurements, GRACE gravity models are expected to achieve more than one order of magnitude of improvement over previous models at spatial scales of a few hundred kilometers or larger. Recovery of surface mass re-distribution based on GRACE’s time-varying gravity models is applied to studies in solid Earth geophysics, oceanography, climatology and geodesy. At secular time scales, GRACE is expected to provide valuable information on global ice changes, whose variations have profound influences on global climate, and in particular, on sea level changes. At seasonal time scales, GRACE is expected to reveal surface water changes with an ac- curacy of less than 1 cm, or ocean bottom pressure changes with an accuracy of less than 1 mbar (1 mbar =102 Pa). These surface mass redistribution measurements would impove our understanding of the global and regional mass and energy cycles that are critical to human life. Using 15 GRACE monthly gravity models covering the period from April 2002 to December 2003, this study compares seasonal water storage changes recovered from GRACE data and hydrology models at global and regional scales, with particular focus on the Yangtze River basin of China. Annual amplitude of 3.4 cm of equivalent water height change is found for the Yangtze River basin with maximum in Spring and Autumn, agreeing with two state-of-the-art hydrology models. The differences between GRACE re- sults and model predictions are less than 1-2 cm. We conclude that satellite gravimetry has huge potentials in monitering water storage changes in large river basins such as Yangtze. | HU Xiaogong1, CHEN Jianli1,2, ZHOU Yonghong1, HUANG Cheng1 & LIAO Xinhao1 1. Center for Astro-geodynamics Research, Shanghai Astronomical Observatory, National Astronomical Observatories, Shanghai 200030, China 2. Center for Space Research, University of Texas at Austin, 3925 W. Braker Lane, Suite 200, Austin, TX78750, USA | 2006 | Science China Earth Sciences2006,49,5: | 29 |
| 2 | The New Methodology显示文摘In the past few years there’s been a rapidly growing interest in “lightweight” methodologies. Alternatively characterized as an antidote to bureaucracy or a license to hack they’ve stirred up interest all over the software landscape. In this essay I explore the reasons for lightweight methods, focusing not so much on their weight but on their adaptive nature and their people first orientation. I also give a summary and references to the processes in this school and consider the factors that should influence your choice of whether to go down this newly trodden path. | Martin Fowler 651 W Washington Blvd,Suite 500,Chicago,IL 60661, USA | 2001 | Wuhan University Journal of Natural Sciences2001,6,Z1: | 2 |
| 3 | SEDIMENT YIELD AND HYDROLOGY INNORTHWESTERN RANGELANDS显示文摘Much of the rangeland of northwestern North America occupies highly variable, high-relief terrain withsteep slopes, contrasting aspects, strong elevation gradients and diverse local climates. Rangeland erosionand sediment production are major concerns in northwestern natural resource management. Seasonalvariability in precipitation, streamflow and energy available for sediment rnobilization and transport ispronounced in northwestern rangeland catchments; thus, runoff and sediment yield exhibit high spatialand temporal variability. The sediment regime of such watersheds cannot be characterized by simpleindices or short-term local measurements. A long-term experimental rangeland watershed demonstratesthe need for sustained measurement programs over a range of catchment scale and topographic position, todetermine actual patterns and rates of runoff and sediment yield. More research is needed to identify andquantify the pathways of sediment from initial detachment to temporary storage and subsequentremobilization and transport through the stream system. The role of extreme hydrologic events inaccelerated landscape erosion, remobilization of stored sediment, and interaction with dynamic channel-forming processes in rangeland streams remains inadequately defined. It is necessary to better determinelandscapes and channels susceptible to treatment to reduce stream sedimentation, and to populate andparameterize simulation models for rangeland catchmenhstream systems. Such information is requiredto address emerging issues of riparian zone and water quality management in northwestern rangelands. | Charles W. Slaughter(Research Leader, Northwest Watershed Research Center, USDA Agricultural Research Service, 800 ParkBoulevard, Suite 105 Boise, Idaho 83712 USA)Frederick B. Pierson(Research Hydrologist, Northwest Watershed Research Center, USDA Agricul | 2000 | International Journal of Sediment Research2000,15,2: | 2 |
| 4 | Measurement of tax progressivity显示文摘 | SUITS | 1977 | The American EconomicReview1977,,: | 1 |
| 5 | Photodissociation of ethylene sulfide at 193 nm:A photofragment translational spectroscopy study with VUV synchrotron radiation and ab initio calculations显示文摘 | Qi F Sorkhabi O Suits A G | 2001 | Journal of the American Chemical Society2001,123,: | 1 |
| 6 | Photodissociation of acrylonitrile at 193 nm:A photofragment translational spectroscopy study using synchrotron radiation for product photoionization显示文摘 | Blank D A Suits A G Lee Y T | 1998 | Journal of Chemical Physics1998,108,: | 1 |
| 7 | The calculation of the directional reflectance of a vegetation canopy显示文摘 | Suits G H | 1972 | Remote Sensing of Environment1972,,2: | 1 |
| 8 | Long-term results of intraoperative electron beam radiotherapy for primary and recurrent retroperitoneal soft tissue sarcoma显示文摘 | Gieschen HL Spiro IJ Suit HD | 2001 | Int J Radiat Oncol Biol Phys2001,50,1: | 1 |
| 9 | Long-term results of intraoperative electron beam radiotherapy for primary and recurrent retroperitoneal soft tissue sarcoma显示文摘 | Gieschen HL Spiro IJ Suit HD | 2001 | Int J Radiat Oncol Biol Phys2001,50,1: | 1 |
| 10 | The epidemiology of psoriasis in a dermatology clinic in a general hospital in Port-of-Spain,Trinidad and Tobago,West Indies显示文摘 | Suite M | 2006 | West Indian Med J2006,55,6: | 1 |
| 11 | 6-meter telescope显示文摘 | Vigil Michael L Witte David J LeVan Paul D et aL Sensor suite for the advanced electro-optical system (AEOS) 3 | 1996 | SPIE1996,2819,: | 1 |
| 12 | Radiation in management of patients with dermatofibrosarcoma protuberans显示文摘 | Suit H Spiro I Mankin HJ | 1996 | J Clin Oncol1996,14,8: | 1 |
| 13 | Assessment of the response of tumours to ra- diation: clinical and experimental studies显示文摘 | Suit HD Walker AM | 1980 | Br Cancer1980,,: | 1 |
| 14 | Neoadjuvant chemotherapy and radiotherapy for large extremity soft tissue sarcomas显示文摘 | DeLaney TF Spiro IJ Suit HD | 2003 | Int J Radiat Oncol Biol Phys2003,56,: | 1 |
| 15 | Secondary carcinogenesis in patients treated with radiation:A review of data on radiation - induced cancers in human, non - human primate, canine and ro-dent subjects显示文摘 | Suit H Goldberg S Niemierko A | 2007 | Radiat Res2007,167,1: | 1 |
| 16 | Accurate M-Hausdorff distance similarity combining distance orientation for matching multi-modal sensor images 显示文摘 | KWON O K KIM D S SUIt W | 2011 | Pattern Recognition l etters2011,32,7: | 1 |
| 17 | Assessment of the response of tumors to radiation:Clinical and experimental studies显示文摘 | Suit H D WaIker A M | 1980 | Br Caneer1980,41,: | 1 |
| 18 | A crossed molecular beam investigation of the reaction Cl+propane → HCl + C3H7 using VUV synchrotron radiation as a product probe显示文摘 | Blank D A Hemmi N Suits A G | 1998 | Chemical Physics1998,231,: | 1 |
| 19 | The Calculation of the Directional Reflectance of Vegetation Canopy 显示文摘 | Suits G H | 1972 | Remote Sensing of Environment1972,3,3: | 1 |
| 20 | Structure of the Escherichia coli 0157: H7 heme oxygenase ChuS in complex with heme and enzymatic inactivation by mutation of the heme coordinating residue His-193显示文摘 | Suits M D Jaffer N Jia Z | 2006 | J Biol Chern2006,281,36: | 1 |