GB/T 47839-2026空間環境地球磁層磁場模型

ICS49.020

CCSV06

中華人民共和國國家標準

GB/T47839—2026

空間環境地球磁層磁場模型

Spaceenvironment—ModeloftheEarth’smagnetosphericmagneticfield

［ISO22009：2023，Spaceenvironment（naturalandartificial）—Modelofthe

Earth’smagnetosphericmagneticfield，MOD］

2026?07?02發布2026?11?01實施

國家市場監督管理總局

國家標準化管理委員會發布

GB/T47839—2026

目次

前言··························································································································Ⅲ

引言··························································································································Ⅳ

1范圍·······················································································································1

2規范性引用文件········································································································1

3術語和定義··············································································································1

4一般概念和假設········································································································2

4.1地球磁層總磁場··································································································2

4.2磁層磁場標準化：基于過程的方法············································································2

5模型要求·················································································································3

5.1概述·················································································································3

5.2磁層磁場源········································································································3

5.3參數化··············································································································3

5.4磁層動力學········································································································3

5.5模型的檢驗及其與測量結果的比較··········································································3

6候選模型要求···········································································································3

6.1候選模型選擇·····································································································3

6.2候選模型適用性說明····························································································3

6.3候選模型誤差分析·······························································································3

6.4模型發布···········································································································3

附錄A（資料性）本文件與ISO22009：2023結構編號對照一覽表···········································4

附錄B（資料性）本文件與ISO22009：2023技術差異及其原因··············································5

附錄C（規范性）磁層磁場的拋物體模型：磁層電流磁場的計算··············································6

C.1概述·················································································································6

C.2磁層電流磁場的拋物體模型···················································································6

C.3屏蔽了地偶極磁場的磁層頂電流磁場·······································································7

C.4磁尾電流磁場·····································································································7

C.5環電流磁場········································································································8

C.6屏蔽環電流磁場的磁層頂電流磁場··········································································8

C.7場向電流磁場·····································································································9

C.8模型精度·········································································································10

C.9其他相關模型···································································································10

附錄D（資料性）子模型······························································································11

D.1概述···············································································································11

D.2地磁偶極傾角···································································································11

Ⅰ

GB/T47839—2026

D.3磁層頂日下點距離·····························································································11

D.4到向地側磁尾電流片邊緣的距離···········································································11

D.5通過磁層尾瓣的磁通量·······················································································12

D.6地心處環電流磁場·····························································································12

D.7整個1區場向電流·····························································································12

附錄E（資料性）用于模型檢驗的坐標系和數據集·····························································13

E.1球坐標（1）········································································································13

E.2球坐標（2）········································································································13

E.3拋物體坐標······································································································13

E.4地偶極磁場······································································································14

E.5用于模型檢驗的數據集·······················································································14

參考文獻····················································································································15

Ⅱ

GB/T47839—2026

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結構和起草規則》的規

定起草。

本文件修改采用ISO22009：2023《空間環境（自然和人工)地球磁層磁場模型》。

本文件與ISO22009：2023相比，在結構上有較多調整。兩個文件之間的結構編號變化對照一覽

表見附錄A。

本文件與ISO22009：2023相比，存在較多技術差異，在所涉及的條款的外側頁邊空白位置用垂直

單豎線（|）進行了標示。這些技術差異及其原因一覽表見附錄B。

本文件做了下列編輯性改動：

——為與我國技術標準體系一致，將標準名稱更改為《空間環境地球磁層磁場模型》；

——將公式（C.3）中cosφcosφ更正為cosψcosφ（見C.3）；

——將“極冠半徑”更正為“極冠張角”（見C.7）；

D.22D.3

——將公式（）中的“nv”替換為“Dp”（見）；

IMFD.7

——將南北向分量改為Bsn（見）；

——補充更多模型對照數據來源（見E.5）。

請注意本文件的某些內容可能涉及專利。本文件的發布機構不承擔識別專利的責任。

本文件由中國科學院提出。

本文件由全國宇航技術及其應用標準化技術委員會（SAC/TC425）歸口。

本文件起草單位：中國地震局地球物理研究所、深圳星地孿生科技有限公司、北京衛星環境工程研

究所、中國科學院國家空間科學中心、江蘇海洋大學、中國航天標準化研究所。

本文件主要起草人：焦立果、沈自才、何朝博、鐘秋珍、季啟政、李昌宏、孫琨杰、喬佳、彭忠、許冬彥、

王世金。

Ⅲ

GB/T47839—2026

引言

地球磁層磁場對空間天氣預報、衛星通信與導航、航天器在軌環境評估與軌道設計、磁層物理過程

和機制研究（包括太陽風—磁層相互作用過程、磁暴與亞暴動力學、空間電流體系反演）、地震電磁異常

擾動識別等具有重要價值，為此，需要規范地球磁層磁場模型的建模和使用。

Ⅳ

GB/T47839—2026

空間環境地球磁層磁場模型

1范圍

本文件給出了地球磁層磁場模型的一般概念和假設，規定了建模要求和使用要求。

本文件適用于地球外源磁層磁場新模型構建、空間天氣預報、衛星通信與導航、航天器在軌環境評

估與軌道設計、磁層物理過程和機制研究（包括太陽風—磁層相互作用過程、磁暴與亞暴動力學、空間

電流體系反演）、地震電磁異常擾動識別等領域。

2規范性引用文件

下列文件中的內容通過文中的規范性引用而構成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用于

本文件。

GB/T32452航天術語空間環境

3術語和定義

GB/T32452界定的以及下列術語和定義適用于本文件。

3.1

磁層磁場magnetosphericmagneticfield

外源磁層磁場externalmagnetosphericmagneticfield

磁層內部及邊界電流產生的磁場。

3.2

磁層磁場源magnetosphericmagneticfieldsources