《数值天气预报》实习指导.docx

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《数值天气预报》实习指导.docx

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《数值天气预报》实习指导.docx

《数值天气预报》实习指导

准地转正压模式实习说明

一、实习目的

通过准地转正压模式的实习，掌握制作数值天气预报的一般方法和主要步骤；同时提高数值计算、编制程序和实际上机操作的能力。

二、实习内容和要求

根据准地转正压模式的原理，设计一个准地转正压模式，以1973年4月29日08时东北、华北地区500hPa等压面位势高度场作为初始场，采用固定的侧边界条件，应用该模式制作未来24小时有限区域500hPa位势高度场的预报，并绘制模式输出结果，对数值预报结果进行分析。

三、实习资料及说明

模式初值：

1973年4月29日08时500hPa等压面位势高度场（单位：

位势十米）

527522519518518518519520524536547553557557554547546547550555

529525522520519519519520524535546552556556550546545546548555

538533527523520519519522525535546552555549546544543543547552

547540535526522520522523529536546551550544540536536541545552

553548542535528524524528533540547550549540530527529533545551

558552547542536532533532537543549553548535524523526535548556

559556550546541538537539544550556558554537524524532540553560

559556552549545545542546550556560561558548540536540549556564

554553554554550548548552556562565565564557550548550555561566

554555556557556554555557561566568570568564558556557559564570

559558560561562560560561564570573574573572566564564566569574

567565566567567566564566570573572575578576572569569570573577

573573573573573573572572573573572572579578576576574576577580

577577577577576575574573574576576576578579580579579579581584

578578579578578577575574574577578579581582582582582583585586

582581580580578578577575575578580582583584584585585586587588

1234567891011121314151617181920

资料说明：

天气底图采用兰勃脱等角圆锥投影图，地图投影坐标系中x轴与90E经线平行，y轴

与x轴垂直，建立均匀网格（网格距d=300公里），共有M×N个网格点，其中M=20，

为x方向的格点数，N=16，为y方向的格点数。

网格系左下角的格点相对于北极点的坐

标为（Ind，Jnd），其中In=－4，Jn=25。

附表一地图投影放大系数（无量纲）

1.0911.1021.1101.1161.1171.1161.1101.1021.0911.0781.0641.0501.0361.0231.0111.000.990.982.975.970

1.0631.0721.0781.0821.0841.0821.0781.0721.0631.0531.0431.0311.0201.0101.000.991.983.977.972.968

1.0401.0461.0511.0541.0551.0541.0511.0461.0401.0321.0241.0151.006.998.990.983.977.972.969.966

1.0201.0251.0291.0311.0321.0311.0291.0251.0201.0141.0081.001.994.988.982.977.972.969.967.966

1.0041.0081.0111.0121.0131.0121.0111.0081.0041.000.995.990.984.980.975.972.969.967.966.966

.991.994.996.997.998.997.996.994.991.988.984.980.977.973.970.968.966.966.966.967

.981.983.984.985.986.985.984.983.981.979.976.974.971.969.967.966.966.966.967.970

.974.975.976.977.977.977.976.975.974.972.970.969.967.966.966.966.966.968.970.973

.969.969.970.970.971.970.970.969.969.968.967.966.966.966.966.967.969.971.974.978

.966.966.967.967.967.967.967.966.966.966.966.966.966.967.968.970.972.976.980.985

.966.966.966.966.966.966.966.966.966.966.967.967.968.970.972.974.978.982.987.992

.968.967.967.967.967.967.967.967.968.968.969.971.972.974.977.980.984.989.9951.001

.972.971.970.970.970.970.970.971.972.973.974.976.978.981.984.988.993.9981.0051.012

.978.977.976.976.975.976.976.977.978.979.981.983.986.989.993.9981.0031.0091.0161.024

.986.984.984.983.983.983.984.984.986.987.990.992.995.9991.0041.0091.0141.0211.0291.037

.996.994.993.992.992.992.993.994.996.9981.0001.0031.0071.0111.0161.0211.0281.0351.0431.052

1234567891011121314151617181920

附表二各网格点的柯氏参数（10-4秒-1）

1.3751.3821.3871.3901.3911.3901.3871.3821.3751.3661.3551.3421.3261.3071.2861.2621.2351.2051.1731.137

1.3541.3611.3661.3691.3701.3691.3661.3611.3541.3451.3331.3191.3031.2841.2621.2381.2101.1801.1471.111

1.3301.3381.3431.3461.3471.3461.3431.3381.3301.3211.3081.2941.2771.2571.2351.2101.1821.1521.1191.083

1.3031.3111.3161.3191.3211.3191.3161.3111.3031.2931.2801.2661.2481.2281.2051.1801.1521.1211.0881.052

1.2721.2801.2861.2901.2911.2901.2861.2801.2721.2621.2491.2341.2161.1961.1731.1471.1191.0881.0541.018

1.2391.2471.2531.2561.2571.2561.2531.2471.2391.2281.2151.1991.1811.1611.1371.1111.0831.0521.018.983

1.2021.2101.2161.2201.2211.2201.2161.2101.2021.1911.1781.1621.1431.1231.0991.0731.0451.014.980.944

1.1621.1701.1761.1801.1811.1801.1761.1701.1621.1511.1371.1211.1031.0821.0581.0321.004.973.939.904

1.1191.1271.1341.1371.1391.1371.1341.1271.1191.1081.0941.0781.0591.0381.015.989.960.930.897.861

1.0731.0821.0881.0921.0931.0921.0881.0821.0731.0621.0481.0321.014.992.969.943.915.884.852.817

1.0251.0331.0401.0431.0451.0431.0401.0331.0251.0141.000.984.965.944.921.895.867.837.805.771

.974.983.989.992.994.992.989.983.974.963.949.933.915.894.871.846.818.788

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