重力場(chǎng)理論及其應(yīng)用
Theory and application for gravity field
地球重力場(chǎng)是地球內(nèi)部和近地空間物質(zhì)密度分布和空間位置的綜合反映，是研究地球內(nèi)部結(jié)構(gòu)及其運(yùn)動(dòng)的重要物理量。重力場(chǎng)所包含的信息十分豐富且重力資料具有范圍廣、精度和分辨率高、觀測(cè)成本相對(duì)較低廉等優(yōu)勢(shì)也就決定了重力場(chǎng)具有廣泛的應(yīng)用。目前重力場(chǎng)已經(jīng)廣泛應(yīng)用于地球內(nèi)部結(jié)構(gòu)研究、礦產(chǎn)資源勘探、地震活動(dòng)性研究、水資源分布變化以及國防軍事等領(lǐng)域之中，為人類帶來了巨大的社會(huì)和經(jīng)濟(jì)效益。同時(shí)由于重力場(chǎng)的復(fù)雜性也引出了許多期待解決的科學(xué)問題。針對(duì)地球內(nèi)部結(jié)構(gòu)及地球動(dòng)力學(xué)前沿領(lǐng)域，以及國防建設(shè)、資源開發(fā)利用和災(zāi)害監(jiān)測(cè)的迫切需求，重點(diǎn)研究全球和中國大陸重力場(chǎng)時(shí)空變化及其規(guī)律與機(jī)制；發(fā)展我國自主重力衛(wèi)星觀測(cè)系統(tǒng)；研制適合導(dǎo)彈部隊(duì)?wèi)?zhàn)場(chǎng)需求的小型絕對(duì)重力儀；研究遠(yuǎn)程武器發(fā)射場(chǎng)的重力保障技術(shù)和潛艇水下無源重力匹配導(dǎo)航技術(shù);開展大地構(gòu)造、地殼結(jié)構(gòu)以及深部隱伏礦產(chǎn)資源勘探。主要研究?jī)?nèi)容：
從事重力場(chǎng)理論、技術(shù)與方法及在國防和國民經(jīng)濟(jì)中的應(yīng)用。包括地球重力場(chǎng)和大地水準(zhǔn)面的確定、衛(wèi)星測(cè)高、島礁重力測(cè)量、重力場(chǎng)時(shí)空變化，絕對(duì)重力測(cè)量、重力輔助導(dǎo)航系統(tǒng)、重力/慣導(dǎo)組合技術(shù)的理論方法和技術(shù)、重力場(chǎng)的分離與反演及其在地球內(nèi)部結(jié)構(gòu)研究和礦產(chǎn)資源勘探中的應(yīng)用等。
The earth's gravity field, an important physical quantity to research the earth's inner structure and movement, is the integrated reflection of inner and upper matter's density distribution and spatial position of the earth. Gravity data have the advantage of wide range, high precision and resolution and relative cheap observation cost, so that the gravity field which contains abundant information has broad applications. Presently, the gravity field which has widely applied in research of inner structure of the earth and seismic activity, mine resource exploration, change of water resource distribution, national defense and military field, brings enormous social and economic benefits for human. At the same time, it brings many scientific problems to resolved because of the complexity the of the gravity field. We focus on the space-time changes, laws and mechanisms of the gravity field of china and globe, aiming at frontier fields of geodynamics and inner structure of the earth, and urgent needs of national defense and construction, resource exploration, and disasters monitor. Developing national independent gravity satellite observation systems and mini-instruments for absolute gravity measurements that adapt to battlefield needs for missile units. Researching gravity security technology of launch site for long-range weapons and underwater initiative gravity matching navigation techniques of nuke. Developing geotectology, crustal structure, and deep hidden mine resource exploration. Primary research content as:
Gravity field theory, technique and method, and application in national defense and economy. Including gravity field and geoid confirmation, satellite altimetry, island reef gravity survey, space-time variation of gravity field, absolute gravity measurements, gravity aided inertial navigation system, theory and technology of gravity/inertial navigation integrated technology, separation and inversion of gravity field and its application in the study on interior structure of the earth and mine resource exploration.
