Diffusion Filters for Variational Data Assimilation of Sea Surface Temperature in an Intermediate Climate Model

<div>The analyzed temperature fields (unit: °C) using (a) GDF, (b) DF with <svg height="11.0084pt" id="M208" style="vertical-align:-1.72007pt" version="1.1" viewbox="-0.0498162 -9.28833 49.4673 11.0084" width="49.4673pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M490 97L476 124C442 96 405 70 398 70C392 70 390 78 396 114C419 243 448 379 463 432L457 436C446 436 431 439 418 442C393 447 368 451 343 451C281 451 204 418 155 381C74 320 24 206 24 107C24 23 59 -12 88 -12C118 -12 155 5 191 34C236 70 290 122 328 177H330L312 84C296 0 311 -12 331 -12C355 -12 425 24 490 97ZM374 387C371 367 360 299 347 264C323 202 187 53 142 53C128 53 113 73 113 120C113 224 157 332 221 380C241 395 274 403 303 403C330 403 360 395 374 387Z" id="g50-98"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="514" vert-adv-y="514"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,6.684,0)"><path d="M98 134C72 134 46 117 46 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Advances in Meteorology

fig2

Figure 2

Figure 2: Diffusion Filters for Variational Data Assimilation of Sea Surface Temperature in an Intermediate Climate Model 