1.PNG: This is a lossless compressed bitmap format, which supports transparent background and high-quality image display.
2.JPEG: This is a bitmap format with lossy compression, which is suitable for storing photos and color images. JPEG images can choose different compression qualities to balance image quality and file size.
3.GIF: This is a bitmap format that supports animation and transparent background. GIF images are usually used for simple animations, icons and graphics.
4.TIFF: This is a lossless compressed or uncompressed bitmap format, which is suitable for the storage and processing of high-quality images.
5.EPS: This is a vector graphics format, which is suitable for printing and publishing images. EPS images can be enlarged and reduced without distortion.
In addition to the general formats mentioned above, NCL also supports other formats, such as PDF and PS. You can choose the appropriate picture format to output according to your own needs. In NCL, the function of "wrf _ xxx" or "gsn _ xxx" is usually used to generate images, and the required image format is selected by setting the output format option. Please refer to NCL official documents or related tutorials for detailed usage and options!