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怀俄明探空站数据解算PWV和Tm:怀俄明探空站数据解算PWV和Tm
怀俄明多线程下载探空站数据(包括检查和下载遗漏数据的代码):怀俄明多线程下载
对IGRAv2进行质量控制得到PWV和Tm的 matlab 代码:IGRAv2进行质量控制得到PWV和Tm
算 IGRAv2 探空站的 Tm 和 PWV:IGRAv2计算Tm和PWV
提取探空站 IGRAv2 全部数据:
ERA5 解算合集(温度、气压、PWV、水汽压和 Tm)代码获取:ERA5合集
代码、测试数据的压缩包在文末,可自行下载测试出图效果
具体使用,请自行修改
- function scatter_plot(x,y,derror)
- % 点状密度图
- % 根据测试数据画的,实际应用自己修改
- % --------------------改变密度大小------------------
- numbins = 50;
- % --------------------------------------------------
-
- X =x;
- Y =y;
- % 找到最大值最小值
- MaxSP=max(x);MaxV=max(y);Maxi=1.1*max(MaxSP,MaxV);
-
- [values, centers] = hist3([X Y], [numbins numbins]);
- centers_X = centers{1,1};
- centers_Y = centers{1,2};
- binsize_X = abs(centers_X(2) - centers_X(1)) / 2;
- binsize_Y = abs(centers_Y(2) - centers_Y(1)) / 2;
- bins_X = zeros(numbins, 2);
- bins_Y = zeros(numbins, 2);
- for i = 1:numbins
- bins_X(i, 1) = centers_X(i) - binsize_X;
- bins_X(i, 2) = centers_X(i) + binsize_X;
- bins_Y(i, 1) = centers_Y(i) - binsize_Y;
- bins_Y(i, 2) = centers_Y(i) + binsize_Y;
- end
- scatter_COL = zeros(length(X), 1);
- onepercent = round(length(X) / 100);
- for i = 1:length(X)
- if (mod(i,onepercent) == 0)
- fprintf('.');
- end
- last_higher_X = NaN;
- id_X = NaN;
- c_X = X(i);
- last_lower_X = find(c_X >= bins_X(:,1));
- if (~isempty(last_lower_X))
- last_lower_X = last_lower_X(end);
- else
- last_higher_X = find(c_X <= bins_X(:,2));
- if (~isempty(last_higher_X))
- last_higher_X = last_higher_X(1);
- end
- end
- if (~isnan(last_lower_X))
- id_X = last_lower_X;
- else
- if (~isnan(last_higher_X))
- id_X = last_higher_X;
- end
- end
- last_higher_Y = NaN;
- id_Y = NaN;
- c_Y = Y(i);
- last_lower_Y = find(c_Y >= bins_Y(:,1));
- if (~isempty(last_lower_Y))
- last_lower_Y = last_lower_Y(end);
- else
- last_higher_Y = find(c_Y <= bins_Y(:,2));
- if (~isempty(last_higher_Y))
- last_higher_Y = last_higher_Y(1);
- end
- end
- if (~isnan(last_lower_Y))
- id_Y = last_lower_Y;
- else
- if (~isnan(last_higher_Y))
- id_Y = last_higher_Y;
- end
- end
- scatter_COL(i) = values(id_X, id_Y);
- end
-
- % 拟合曲线
- a=polyfit(x,y,1);
- ax=linspace(0,Maxi+10,2000);
- ay=a(1)*ax+a(2);
-
- Str_yx=['Y = ',num2str(round(a(1),2)),'*X +',num2str(round(a(2),2))];
-
-
- scatter(x, y, 20, scatter_COL, '.' );
- hold on
-
- colormap('jet');
- colorbar;
-
- xlabel('GNSS-PWV/mm','FontSize',12,'FontName','Times New Roman');
- ylabel('ERA5-PWV/mm','FontSize',12,'FontName','Times New Roman');
-
-
- bx = linspace(0,120,2000);
-
- % 设置xy轴的界限
- % xlim([0 120]);ylim([0 120]);
-
- % 把误差表示在图上,位置根据自己需要改,我这是根据测试数据填的
- text(5,115,Str_yx,'FontSize',12,'FontName','Times New Roman')
- text(5,107,['Bias = ',num2str(round(100*derror(1))/100,'%.2f')],'FontSize',12,'FontName','Times New Roman')
- text(5,99,['RMSE = ',num2str(round(100*derror(2))/100,'%.2f')],'FontSize',12,'FontName','Times New Roman')
- text(5,91,['Cor = ',num2str(derror(3),'%.2f')],'FontSize',12,'FontName','Times New Roman')
-
-
- % 画拟合曲线
- plot(ax,ay,'r')
- hold on
-
- % 画对角线
- plot(bx,bx,'k');
- hold on
-
- title('测试数据','FontSize',12)
- box on
- grid on
-
- set(gca,'LineWidth',1.2)
- end
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